merge up to latest snowstorm integration branch

268 files changed, 1370 insertions, 348 deletions

diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index 5cce8ff2c4..3a4a8facc2 100644..100755
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -17,6 +17,7 @@ include_directories(
     ${EXPAT_INCLUDE_DIRS}
     ${LLCOMMON_INCLUDE_DIRS}
     ${ZLIB_INCLUDE_DIRS}
+    ${BREAKPAD_INCLUDE_DIRECTORIES}
     )
 
 # add_executable(lltreeiterators lltreeiterators.cpp)
@@ -246,7 +247,6 @@ set(llcommon_HEADER_FILES
     lluuid.h
     lluuidhashmap.h
     llversionserver.h
-    llversionviewer.h
     llworkerthread.h
     ll_template_cast.h
     metaclass.h
@@ -337,6 +337,7 @@ if (LL_TESTS)
   LL_ADD_INTEGRATION_TEST(reflection "" "${test_libs}")
   LL_ADD_INTEGRATION_TEST(stringize "" "${test_libs}")
   LL_ADD_INTEGRATION_TEST(lleventdispatcher "" "${test_libs}")
+  LL_ADD_INTEGRATION_TEST(lleventcoro "" "${test_libs};${BOOST_CONTEXT_LIBRARY}")
   LL_ADD_INTEGRATION_TEST(llprocess "" "${test_libs}")
   LL_ADD_INTEGRATION_TEST(llleap "" "${test_libs}")
   LL_ADD_INTEGRATION_TEST(llstreamqueue "" "${test_libs}")
diff --git a/indra/llcommon/bitpack.cpp b/indra/llcommon/bitpack.cpp
index cdcaba0765..cdcaba0765 100644..100755
--- a/indra/llcommon/bitpack.cpp
+++ b/indra/llcommon/bitpack.cpp
diff --git a/indra/llcommon/bitpack.h b/indra/llcommon/bitpack.h
index 037300dd14..037300dd14 100644..100755
--- a/indra/llcommon/bitpack.h
+++ b/indra/llcommon/bitpack.h
diff --git a/indra/llcommon/ctype_workaround.h b/indra/llcommon/ctype_workaround.h
index 552be9fb90..552be9fb90 100644..100755
--- a/indra/llcommon/ctype_workaround.h
+++ b/indra/llcommon/ctype_workaround.h
diff --git a/indra/llcommon/doublelinkedlist.h b/indra/llcommon/doublelinkedlist.h
index 0aeaa69df3..0aeaa69df3 100644..100755
--- a/indra/llcommon/doublelinkedlist.h
+++ b/indra/llcommon/doublelinkedlist.h
diff --git a/indra/llcommon/fix_macros.h b/indra/llcommon/fix_macros.h
index ef959decff..ef959decff 100644..100755
--- a/indra/llcommon/fix_macros.h
+++ b/indra/llcommon/fix_macros.h
diff --git a/indra/llcommon/imageids.cpp b/indra/llcommon/imageids.cpp
index fe11465221..7d647e5c36 100644..100755
--- a/indra/llcommon/imageids.cpp
+++ b/indra/llcommon/imageids.cpp
@@ -68,3 +68,6 @@ const LLUUID TERRAIN_MOUNTAIN_DETAIL	("303cd381-8560-7579-23f1-f0a880799740"); /
 const LLUUID TERRAIN_ROCK_DETAIL		("53a2f406-4895-1d13-d541-d2e3b86bc19c"); // VIEWER
 
 const LLUUID DEFAULT_WATER_NORMAL		("822ded49-9a6c-f61c-cb89-6df54f42cdf4"); // VIEWER
+
+const LLUUID IMG_CHECKERBOARD_RGBA     ("2585a0f3-4163-6dd1-0f34-ad48cb909e25"); // dataserver
+
diff --git a/indra/llcommon/imageids.h b/indra/llcommon/imageids.h
index e0c2683fdc..18c8ecb074 100644..100755
--- a/indra/llcommon/imageids.h
+++ b/indra/llcommon/imageids.h
@@ -66,4 +66,5 @@ LL_COMMON_API extern const LLUUID TERRAIN_ROCK_DETAIL;
 
 LL_COMMON_API extern const LLUUID DEFAULT_WATER_NORMAL;
 
+LL_COMMON_API extern const LLUUID IMG_CHECKERBOARD_RGBA;
 #endif
diff --git a/indra/llcommon/indra_constants.cpp b/indra/llcommon/indra_constants.cpp
index d32ae6c041..d32ae6c041 100644..100755
--- a/indra/llcommon/indra_constants.cpp
+++ b/indra/llcommon/indra_constants.cpp
diff --git a/indra/llcommon/indra_constants.h b/indra/llcommon/indra_constants.h
index 0da83720bd..0da83720bd 100644..100755
--- a/indra/llcommon/indra_constants.h
+++ b/indra/llcommon/indra_constants.h
diff --git a/indra/llcommon/is_approx_equal_fraction.h b/indra/llcommon/is_approx_equal_fraction.h
index 4a9b2e2725..4a9b2e2725 100644..100755
--- a/indra/llcommon/is_approx_equal_fraction.h
+++ b/indra/llcommon/is_approx_equal_fraction.h
diff --git a/indra/llcommon/linden_common.h b/indra/llcommon/linden_common.h
index 5cfcdab41c..5cfcdab41c 100644..100755
--- a/indra/llcommon/linden_common.h
+++ b/indra/llcommon/linden_common.h
diff --git a/indra/llcommon/linked_lists.h b/indra/llcommon/linked_lists.h
index 6b25295b7b..6b25295b7b 100644..100755
--- a/indra/llcommon/linked_lists.h
+++ b/indra/llcommon/linked_lists.h
diff --git a/indra/llcommon/ll_template_cast.h b/indra/llcommon/ll_template_cast.h
index c8f9a2f7eb..c8f9a2f7eb 100644..100755
--- a/indra/llcommon/ll_template_cast.h
+++ b/indra/llcommon/ll_template_cast.h
diff --git a/indra/llcommon/llaccountingcost.h b/indra/llcommon/llaccountingcost.h
index 0ef3b50c6d..0ef3b50c6d 100644..100755
--- a/indra/llcommon/llaccountingcost.h
+++ b/indra/llcommon/llaccountingcost.h
diff --git a/indra/llcommon/llagentconstants.h b/indra/llcommon/llagentconstants.h
index cd237da4eb..cd237da4eb 100644..100755
--- a/indra/llcommon/llagentconstants.h
+++ b/indra/llcommon/llagentconstants.h
diff --git a/indra/llcommon/llallocator.cpp b/indra/llcommon/llallocator.cpp
index 34fc28d8cc..34fc28d8cc 100644..100755
--- a/indra/llcommon/llallocator.cpp
+++ b/indra/llcommon/llallocator.cpp
diff --git a/indra/llcommon/llallocator.h b/indra/llcommon/llallocator.h
index d26ad73c5b..d26ad73c5b 100644..100755
--- a/indra/llcommon/llallocator.h
+++ b/indra/llcommon/llallocator.h
diff --git a/indra/llcommon/llallocator_heap_profile.cpp b/indra/llcommon/llallocator_heap_profile.cpp
index b574ef668b..b574ef668b 100644..100755
--- a/indra/llcommon/llallocator_heap_profile.cpp
+++ b/indra/llcommon/llallocator_heap_profile.cpp
diff --git a/indra/llcommon/llallocator_heap_profile.h b/indra/llcommon/llallocator_heap_profile.h
index 69300b829b..69300b829b 100644..100755
--- a/indra/llcommon/llallocator_heap_profile.h
+++ b/indra/llcommon/llallocator_heap_profile.h
diff --git a/indra/llcommon/llapp.cpp b/indra/llcommon/llapp.cpp
index ca258900c7..67a98d5fb8 100644..100755
--- a/indra/llcommon/llapp.cpp
+++ b/indra/llcommon/llapp.cpp
@@ -69,10 +69,16 @@ bool windows_post_minidump_callback(const wchar_t* dump_path,
 void setup_signals();
 void default_unix_signal_handler(int signum, siginfo_t *info, void *);
 
+#if LL_LINUX
+#include "google_breakpad/minidump_descriptor.h"
+bool unix_minidump_callback(const google_breakpad::MinidumpDescriptor& minidump_desc, void* context, bool succeeded);
+#else
 // Called by breakpad exception handler after the minidump has been generated.
 bool unix_post_minidump_callback(const char *dump_dir,
 					  const char *minidump_id,
 					  void *context, bool succeeded);
+#endif
+
 # if LL_DARWIN
 /* OSX doesn't support SIGRT* */
 S32 LL_SMACKDOWN_SIGNAL = SIGUSR1;
@@ -313,7 +319,7 @@ void LLApp::setupErrorHandling()
 	
 	// Add google breakpad exception handler configured for Darwin/Linux.
 	bool installHandler = true;
-#ifdef LL_DARWIN
+#if LL_DARWIN
 	// For the special case of Darwin, we do not want to install the handler if
 	// the process is being debugged as the app will exit with value ABRT (6) if
 	// we do.  Unfortunately, the code below which performs that test relies on
@@ -346,14 +352,21 @@ void LLApp::setupErrorHandling()
 		installHandler = true;
 	}
 	#endif
-#endif
+
 	if(installHandler && (mExceptionHandler == 0))
 	{
 		std::string dumpPath = "/tmp/";
-		mExceptionHandler = new google_breakpad::ExceptionHandler(dumpPath, 0, &unix_post_minidump_callback, 0, true);
+		mExceptionHandler = new google_breakpad::ExceptionHandler(dumpPath, 0, &unix_post_minidump_callback, 0, true, 0);
+	}
+#elif LL_LINUX
+	if(installHandler && (mExceptionHandler == 0))
+	{
+		google_breakpad::MinidumpDescriptor desc("/tmp");
+	        new google_breakpad::ExceptionHandler(desc, 0, &unix_minidump_callback, 0, true, 0);
 	}
 #endif
 
+#endif
 	startErrorThread();
 }
 
@@ -410,6 +423,9 @@ void LLApp::setMiniDumpDir(const std::string &path)
 	wchar_t buffer[MAX_MINDUMP_PATH_LENGTH];
 	mbstowcs(buffer, path.c_str(), MAX_MINDUMP_PATH_LENGTH);
 	mExceptionHandler->set_dump_path(std::wstring(buffer));
+#elif LL_LINUX
+        google_breakpad::MinidumpDescriptor desc(path);
+	mExceptionHandler->set_minidump_descriptor(desc);
 #else
 	mExceptionHandler->set_dump_path(path);
 #endif
@@ -857,6 +873,43 @@ void default_unix_signal_handler(int signum, siginfo_t *info, void *)
 	}
 }
 
+#if LL_LINUX
+bool unix_minidump_callback(const google_breakpad::MinidumpDescriptor& minidump_desc, void* context, bool succeeded)
+{
+	// Copy minidump file path into fixed buffer in the app instance to avoid
+	// heap allocations in a crash handler.
+	
+	// path format: <dump_dir>/<minidump_id>.dmp
+	int dirPathLength = strlen(minidump_desc.path());
+	
+	// The path must not be truncated.
+	llassert((dirPathLength + 5) <= LLApp::MAX_MINDUMP_PATH_LENGTH);
+	
+	char * path = LLApp::instance()->getMiniDumpFilename();
+	S32 remaining = LLApp::MAX_MINDUMP_PATH_LENGTH;
+	strncpy(path, minidump_desc.path(), remaining);
+	remaining -= dirPathLength;
+	path += dirPathLength;
+	if (remaining > 0 && dirPathLength > 0 && path[-1] != '/')
+	{
+		*path++ = '/';
+		--remaining;
+	}
+	
+	llinfos << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << llendl;
+	LLApp::runErrorHandler();
+	
+#ifndef LL_RELEASE_FOR_DOWNLOAD
+	clear_signals();
+	return false;
+#else
+	return true;
+#endif
+
+}
+#endif
+
+
 bool unix_post_minidump_callback(const char *dump_dir,
 					  const char *minidump_id,
 					  void *context, bool succeeded)
@@ -933,9 +986,9 @@ bool windows_post_minidump_callback(const wchar_t* dump_path,
 	}
 
 	llinfos << "generated minidump: " << LLApp::instance()->getMiniDumpFilename() << llendl;
-    // *NOTE:Mani - this code is stolen from LLApp, where its never actually used.
+   // *NOTE:Mani - this code is stolen from LLApp, where its never actually used.
 	//OSMessageBox("Attach Debugger Now", "Error", OSMB_OK);
-    // *TODO: Translate the signals/exceptions into cross-platform stuff
+   // *TODO: Translate the signals/exceptions into cross-platform stuff
 	// Windows implementation
 	llinfos << "Entering Windows Exception Handler..." << llendl;
 
diff --git a/indra/llcommon/llapp.h b/indra/llcommon/llapp.h
index a536a06ea5..afa06df23e 100644..100755
--- a/indra/llcommon/llapp.h
+++ b/indra/llcommon/llapp.h
@@ -38,7 +38,7 @@ typedef LLAtomic32<U32> LLAtomicU32;
 class LLErrorThread;
 class LLLiveFile;
 #if LL_LINUX
-typedef struct siginfo siginfo_t;
+#include <signal.h>
 #endif
 
 typedef void (*LLAppErrorHandler)();
diff --git a/indra/llcommon/llapr.cpp b/indra/llcommon/llapr.cpp
index d1c44c9403..a0802c6adf 100644..100755
--- a/indra/llcommon/llapr.cpp
+++ b/indra/llcommon/llapr.cpp
@@ -226,9 +226,7 @@ void LLVolatileAPRPool::clearVolatileAPRPool()
 		llassert_always(mNumActiveRef > 0) ;
 	}
 
-	//paranoia check if the pool is jammed.
-	//will remove the check before going to release.
-	llassert_always(mNumTotalRef < (FULL_VOLATILE_APR_POOL << 2)) ;
+	llassert(mNumTotalRef < (FULL_VOLATILE_APR_POOL << 2)) ;
 }
 
 BOOL LLVolatileAPRPool::isFull()
diff --git a/indra/llcommon/llapr.h b/indra/llcommon/llapr.h
index 034546c3f3..752574c65d 100644..100755
--- a/indra/llcommon/llapr.h
+++ b/indra/llcommon/llapr.h
@@ -182,8 +182,10 @@ typedef LLAtomic32<S32> LLAtomicS32;
 // abbreviated flags
 #define LL_APR_R (APR_READ) // "r"
 #define LL_APR_W (APR_CREATE|APR_TRUNCATE|APR_WRITE) // "w"
+#define LL_APR_A (APR_CREATE|APR_WRITE|APR_APPEND) // "w"
 #define LL_APR_RB (APR_READ|APR_BINARY) // "rb"
 #define LL_APR_WB (APR_CREATE|APR_TRUNCATE|APR_WRITE|APR_BINARY) // "wb"
+#define LL_APR_AB (APR_CREATE|APR_WRITE|APR_BINARY|APR_APPEND)
 #define LL_APR_RPB (APR_READ|APR_WRITE|APR_BINARY) // "r+b"
 #define LL_APR_WPB (APR_CREATE|APR_TRUNCATE|APR_READ|APR_WRITE|APR_BINARY) // "w+b"
 
diff --git a/indra/llcommon/llassettype.cpp b/indra/llcommon/llassettype.cpp
index 5ae2df3994..5ae2df3994 100644..100755
--- a/indra/llcommon/llassettype.cpp
+++ b/indra/llcommon/llassettype.cpp
diff --git a/indra/llcommon/llassettype.h b/indra/llcommon/llassettype.h
index 69b01731e5..69b01731e5 100644..100755
--- a/indra/llcommon/llassettype.h
+++ b/indra/llcommon/llassettype.h
diff --git a/indra/llcommon/llassoclist.h b/indra/llcommon/llassoclist.h
index 2950504155..2950504155 100644..100755
--- a/indra/llcommon/llassoclist.h
+++ b/indra/llcommon/llassoclist.h
diff --git a/indra/llcommon/llavatarconstants.h b/indra/llcommon/llavatarconstants.h
index f47f447b45..f47f447b45 100644..100755
--- a/indra/llcommon/llavatarconstants.h
+++ b/indra/llcommon/llavatarconstants.h
diff --git a/indra/llcommon/llavatarname.cpp b/indra/llcommon/llavatarname.cpp
index 95ecce509b..642bd82e90 100644..100755
--- a/indra/llcommon/llavatarname.cpp
+++ b/indra/llcommon/llavatarname.cpp
@@ -178,6 +178,21 @@ std::string LLAvatarName::getCompleteName() const
 	return name;
 }
 
+std::string LLAvatarName::getLegacyName() const
+{
+	if (mLegacyFirstName.empty() && mLegacyLastName.empty()) // display names disabled?
+	{
+		return mDisplayName;
+	}
+
+	std::string name;
+	name.reserve( mLegacyFirstName.size() + 1 + mLegacyLastName.size() );
+	name = mLegacyFirstName;
+	name += " ";
+	name += mLegacyLastName;
+	return name;
+}
+
 std::string LLAvatarName::getDisplayName() const
 {
 	if (sUseDisplayNames)
diff --git a/indra/llcommon/llavatarname.h b/indra/llcommon/llavatarname.h
index 4827353018..5d2fccc5ba 100644..100755
--- a/indra/llcommon/llavatarname.h
+++ b/indra/llcommon/llavatarname.h
@@ -64,6 +64,11 @@ public:
 	// When display names are disabled returns just "James Linden"
 	std::string getCompleteName() const;
 	
+	// Returns "James Linden" or "bobsmith123 Resident" for backwards
+	// compatibility with systems like voice and muting
+	// *TODO: Eliminate this in favor of username only
+	std::string getLegacyName() const;
+	
 	// "José Sanchez" or "James Linden", UTF-8 encoded Unicode
 	// Takes the display name preference into account. This is truly the name that should 
 	// be used for all UI where an avatar name has to be used unless we truly want something else (rare)
diff --git a/indra/llcommon/llbase32.cpp b/indra/llcommon/llbase32.cpp
index 053ac0d32f..053ac0d32f 100644..100755
--- a/indra/llcommon/llbase32.cpp
+++ b/indra/llcommon/llbase32.cpp
diff --git a/indra/llcommon/llbase32.h b/indra/llcommon/llbase32.h
index eeb96d789d..eeb96d789d 100644..100755
--- a/indra/llcommon/llbase32.h
+++ b/indra/llcommon/llbase32.h
diff --git a/indra/llcommon/llbase64.cpp b/indra/llcommon/llbase64.cpp
index 4e82cf7f20..4e82cf7f20 100644..100755
--- a/indra/llcommon/llbase64.cpp
+++ b/indra/llcommon/llbase64.cpp
diff --git a/indra/llcommon/llbase64.h b/indra/llcommon/llbase64.h
index 16d2c217d0..16d2c217d0 100644..100755
--- a/indra/llcommon/llbase64.h
+++ b/indra/llcommon/llbase64.h
diff --git a/indra/llcommon/llboost.h b/indra/llcommon/llboost.h
index 57d958a51a..57d958a51a 100644..100755
--- a/indra/llcommon/llboost.h
+++ b/indra/llcommon/llboost.h
diff --git a/indra/llcommon/llchat.h b/indra/llcommon/llchat.h
index f5b242fdfc..f5b242fdfc 100644..100755
--- a/indra/llcommon/llchat.h
+++ b/indra/llcommon/llchat.h
diff --git a/indra/llcommon/llclickaction.h b/indra/llcommon/llclickaction.h
index 1f87d8eec3..1f87d8eec3 100644..100755
--- a/indra/llcommon/llclickaction.h
+++ b/indra/llcommon/llclickaction.h
diff --git a/indra/llcommon/llcommon.cpp b/indra/llcommon/llcommon.cpp
index 8be9e4f4de..8be9e4f4de 100644..100755
--- a/indra/llcommon/llcommon.cpp
+++ b/indra/llcommon/llcommon.cpp
diff --git a/indra/llcommon/llcommon.h b/indra/llcommon/llcommon.h
index ca9cad5d05..ca9cad5d05 100644..100755
--- a/indra/llcommon/llcommon.h
+++ b/indra/llcommon/llcommon.h
diff --git a/indra/llcommon/llcommonutils.cpp b/indra/llcommon/llcommonutils.cpp
index d82554c202..d82554c202 100644..100755
--- a/indra/llcommon/llcommonutils.cpp
+++ b/indra/llcommon/llcommonutils.cpp
diff --git a/indra/llcommon/llcommonutils.h b/indra/llcommon/llcommonutils.h
index 755dc41fb4..755dc41fb4 100644..100755
--- a/indra/llcommon/llcommonutils.h
+++ b/indra/llcommon/llcommonutils.h
diff --git a/indra/llcommon/llcoros.cpp b/indra/llcommon/llcoros.cpp
index 0b5829eb7e..baaddcaed1 100644..100755
--- a/indra/llcommon/llcoros.cpp
+++ b/indra/llcommon/llcoros.cpp
@@ -39,7 +39,12 @@
 #include "llerror.h"
 #include "stringize.h"
 
-LLCoros::LLCoros()
+LLCoros::LLCoros():
+    // MAINT-2724: default coroutine stack size too small on Windows.
+    // Previously we used
+    // boost::context::guarded_stack_allocator::default_stacksize();
+    // empirically this is 64KB on Windows and Linux. Try quadrupling.
+    mStackSize(256*1024)
 {
     // Register our cleanup() method for "mainloop" ticks
     LLEventPumps::instance().obtain("mainloop").listen(
@@ -55,7 +60,7 @@ bool LLCoros::cleanup(const LLSD&)
         // since last tick?
         if (mi->second->exited())
         {
-            LL_INFOS("LLCoros") << "LLCoros: cleaning up coroutine " << mi->first << LL_ENDL;
+			   LL_INFOS("LLCoros") << "LLCoros: cleaning up coroutine " << mi->first << LL_ENDL;
             // The erase() call will invalidate its passed iterator value --
             // so increment mi FIRST -- but pass its original value to
             // erase(). This is what postincrement is all about.
@@ -89,7 +94,7 @@ std::string LLCoros::generateDistinctName(const std::string& prefix) const
     {
         if (mCoros.find(name) == mCoros.end())
         {
-            LL_INFOS("LLCoros") << "LLCoros: launching coroutine " << name << LL_ENDL;
+			   LL_INFOS("LLCoros") << "LLCoros: launching coroutine " << name << LL_ENDL;
             return name;
         }
     }
@@ -115,7 +120,7 @@ std::string LLCoros::getNameByID(const void* self_id) const
     // passed to us comes.
     for (CoroMap::const_iterator mi(mCoros.begin()), mend(mCoros.end()); mi != mend; ++mi)
     {
-        namespace coro_private = boost::coroutines::detail;
+        namespace coro_private = boost::dcoroutines::detail;
         if (static_cast<void*>(coro_private::coroutine_accessor::get_impl(const_cast<coro&>(*mi->second)).get())
             == self_id)
         {
@@ -125,6 +130,12 @@ std::string LLCoros::getNameByID(const void* self_id) const
     return "";
 }
 
+void LLCoros::setStackSize(S32 stacksize)
+{
+    LL_INFOS("LLCoros") << "Setting coroutine stack size to " << stacksize << LL_ENDL;
+    mStackSize = stacksize;
+}
+
 /*****************************************************************************
 *   MUST BE LAST
 *****************************************************************************/
diff --git a/indra/llcommon/llcoros.h b/indra/llcommon/llcoros.h
index d75f28ec1a..01ee11da1a 100644..100755
--- a/indra/llcommon/llcoros.h
+++ b/indra/llcommon/llcoros.h
@@ -29,7 +29,7 @@
 #if ! defined(LL_LLCOROS_H)
 #define LL_LLCOROS_H
 
-#include <boost/coroutine/coroutine.hpp>
+#include <boost/dcoroutine/coroutine.hpp>
 #include "llsingleton.h"
 #include <boost/ptr_container/ptr_map.hpp>
 #include <string>
@@ -78,8 +78,8 @@
 class LL_COMMON_API LLCoros: public LLSingleton<LLCoros>
 {
 public:
-    /// Canonical boost::coroutines::coroutine signature we use
-    typedef boost::coroutines::coroutine<void()> coro;
+    /// Canonical boost::dcoroutines::coroutine signature we use
+    typedef boost::dcoroutines::coroutine<void()> coro;
     /// Canonical 'self' type
     typedef coro::self self;
 
@@ -125,7 +125,7 @@ public:
     template <typename CALLABLE>
     std::string launch(const std::string& prefix, const CALLABLE& callable)
     {
-        return launchImpl(prefix, new coro(callable));
+        return launchImpl(prefix, new coro(callable, mStackSize));
     }
 
     /**
@@ -152,6 +152,9 @@ public:
     /// getName() by self.get_id()
     std::string getNameByID(const void* self_id) const;
 
+    /// for delayed initialization
+    void setStackSize(S32 stacksize);
+
 private:
     friend class LLSingleton<LLCoros>;
     LLCoros();
@@ -159,6 +162,7 @@ private:
     std::string generateDistinctName(const std::string& prefix) const;
     bool cleanup(const LLSD&);
 
+    S32 mStackSize;
     typedef boost::ptr_map<std::string, coro> CoroMap;
     CoroMap mCoros;
 };
diff --git a/indra/llcommon/llcrc.cpp b/indra/llcommon/llcrc.cpp
index e80da0bb0d..e80da0bb0d 100644..100755
--- a/indra/llcommon/llcrc.cpp
+++ b/indra/llcommon/llcrc.cpp
diff --git a/indra/llcommon/llcrc.h b/indra/llcommon/llcrc.h
index 2d291d92a1..2d291d92a1 100644..100755
--- a/indra/llcommon/llcrc.h
+++ b/indra/llcommon/llcrc.h
diff --git a/indra/llcommon/llcriticaldamp.cpp b/indra/llcommon/llcriticaldamp.cpp
index 87d79b1ee0..87d79b1ee0 100644..100755
--- a/indra/llcommon/llcriticaldamp.cpp
+++ b/indra/llcommon/llcriticaldamp.cpp
diff --git a/indra/llcommon/llcriticaldamp.h b/indra/llcommon/llcriticaldamp.h
index 52f052ae25..52f052ae25 100644..100755
--- a/indra/llcommon/llcriticaldamp.h
+++ b/indra/llcommon/llcriticaldamp.h
diff --git a/indra/llcommon/llcursortypes.cpp b/indra/llcommon/llcursortypes.cpp
index ec60097195..ec60097195 100644..100755
--- a/indra/llcommon/llcursortypes.cpp
+++ b/indra/llcommon/llcursortypes.cpp
diff --git a/indra/llcommon/llcursortypes.h b/indra/llcommon/llcursortypes.h
index cb6d6636a0..cb6d6636a0 100644..100755
--- a/indra/llcommon/llcursortypes.h
+++ b/indra/llcommon/llcursortypes.h
diff --git a/indra/llcommon/lldarray.h b/indra/llcommon/lldarray.h
index 131b819c99..131b819c99 100644..100755
--- a/indra/llcommon/lldarray.h
+++ b/indra/llcommon/lldarray.h
diff --git a/indra/llcommon/lldarrayptr.h b/indra/llcommon/lldarrayptr.h
index c9a0b204d1..c9a0b204d1 100644..100755
--- a/indra/llcommon/lldarrayptr.h
+++ b/indra/llcommon/lldarrayptr.h
diff --git a/indra/llcommon/lldate.cpp b/indra/llcommon/lldate.cpp
index 030ef6a3c7..030ef6a3c7 100644..100755
--- a/indra/llcommon/lldate.cpp
+++ b/indra/llcommon/lldate.cpp
diff --git a/indra/llcommon/lldate.h b/indra/llcommon/lldate.h
index 7ff8b550ad..7ff8b550ad 100644..100755
--- a/indra/llcommon/lldate.h
+++ b/indra/llcommon/lldate.h
diff --git a/indra/llcommon/lldefs.h b/indra/llcommon/lldefs.h
index 5a4b8325f4..5a4b8325f4 100644..100755
--- a/indra/llcommon/lldefs.h
+++ b/indra/llcommon/lldefs.h
diff --git a/indra/llcommon/lldeleteutils.h b/indra/llcommon/lldeleteutils.h
index f250dc3028..f250dc3028 100644..100755
--- a/indra/llcommon/lldeleteutils.h
+++ b/indra/llcommon/lldeleteutils.h
diff --git a/indra/llcommon/lldependencies.cpp b/indra/llcommon/lldependencies.cpp
index 0e72c175cb..0e72c175cb 100644..100755
--- a/indra/llcommon/lldependencies.cpp
+++ b/indra/llcommon/lldependencies.cpp
diff --git a/indra/llcommon/lldependencies.h b/indra/llcommon/lldependencies.h
index e0294e271b..e0294e271b 100644..100755
--- a/indra/llcommon/lldependencies.h
+++ b/indra/llcommon/lldependencies.h
diff --git a/indra/llcommon/lldepthstack.h b/indra/llcommon/lldepthstack.h
index d9db54efc7..d9db54efc7 100644..100755
--- a/indra/llcommon/lldepthstack.h
+++ b/indra/llcommon/lldepthstack.h
diff --git a/indra/llcommon/lldictionary.cpp b/indra/llcommon/lldictionary.cpp
index e16c35ed6a..e16c35ed6a 100644..100755
--- a/indra/llcommon/lldictionary.cpp
+++ b/indra/llcommon/lldictionary.cpp
diff --git a/indra/llcommon/lldictionary.h b/indra/llcommon/lldictionary.h
index bc3bc3e74a..c752859a36 100644..100755
--- a/indra/llcommon/lldictionary.h
+++ b/indra/llcommon/lldictionary.h
@@ -30,6 +30,8 @@
 #include <map>
 #include <string>
 
+#include "llerror.h"
+
 struct LL_COMMON_API LLDictionaryEntry
 {
 	LLDictionaryEntry(const std::string &name);
diff --git a/indra/llcommon/lldlinked.h b/indra/llcommon/lldlinked.h
index 3f7c197be7..3f7c197be7 100644..100755
--- a/indra/llcommon/lldlinked.h
+++ b/indra/llcommon/lldlinked.h
diff --git a/indra/llcommon/lldoubledispatch.h b/indra/llcommon/lldoubledispatch.h
index 8ed295b6f1..8ed295b6f1 100644..100755
--- a/indra/llcommon/lldoubledispatch.h
+++ b/indra/llcommon/lldoubledispatch.h
diff --git a/indra/llcommon/lldqueueptr.h b/indra/llcommon/lldqueueptr.h
index 9fe08191e1..9fe08191e1 100644..100755
--- a/indra/llcommon/lldqueueptr.h
+++ b/indra/llcommon/lldqueueptr.h
diff --git a/indra/llcommon/llendianswizzle.h b/indra/llcommon/llendianswizzle.h
index 4c08074a9c..4c08074a9c 100644..100755
--- a/indra/llcommon/llendianswizzle.h
+++ b/indra/llcommon/llendianswizzle.h
diff --git a/indra/llcommon/llenum.h b/indra/llcommon/llenum.h
index f57b2bc0b5..f57b2bc0b5 100644..100755
--- a/indra/llcommon/llenum.h
+++ b/indra/llcommon/llenum.h
diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp
index 9b0141eb76..d2af004cde 100644..100755
--- a/indra/llcommon/llerror.cpp
+++ b/indra/llcommon/llerror.cpp
@@ -201,10 +201,7 @@ namespace {
 		virtual void recordMessage(LLError::ELevel level,
 								   const std::string& message)
 		{
-			llutf16string utf16str =
-				wstring_to_utf16str(utf8str_to_wstring(message));
-			utf16str += '\n';
-			OutputDebugString(utf16str.c_str());
+			LL_WINDOWS_OUTPUT_DEBUG(message);
 		}
 	};
 #endif
@@ -1401,5 +1398,27 @@ namespace LLError
    {
        sIndex = 0 ;
    }
+
+#if LL_WINDOWS
+	void LLOutputDebugUTF8(const std::string& s)
+	{
+		// Be careful when calling OutputDebugString as it throws DBG_PRINTEXCEPTION_C 
+		// which works just fine under the windows debugger, but can cause users who
+		// have enabled SEHOP exception chain validation to crash due to interactions
+		// between the Win 32-bit exception handling and boost coroutine fiber stacks. BUG-2707
+		//
+		if (IsDebuggerPresent())
+		{
+			// Need UTF16 for Unicode OutputDebugString
+			//
+			if (s.size())
+			{
+				OutputDebugString(utf8str_to_utf16str(s).c_str());
+				OutputDebugString(TEXT("\n"));
+			}
+		}
+	}
+#endif
+
 }
 
diff --git a/indra/llcommon/llerror.h b/indra/llcommon/llerror.h
index b65b410153..0b723aeb5d 100644..100755
--- a/indra/llcommon/llerror.h
+++ b/indra/llcommon/llerror.h
@@ -34,7 +34,6 @@
 #include "llerrorlegacy.h"
 #include "stdtypes.h"
 
-
 /** Error Logging Facility
 
 	Information for most users:
@@ -199,8 +198,20 @@ namespace LLError
        static void clear() ;
 	   static void end(std::ostringstream* _out) ;
    }; 
+
+#if LL_WINDOWS
+	void LLOutputDebugUTF8(const std::string& s);
+#endif
+
 }
 
+#if LL_WINDOWS
+	// Macro accepting a std::string for display in windows debugging console
+	#define LL_WINDOWS_OUTPUT_DEBUG(a) LLError::LLOutputDebugUTF8(a)
+#else
+	#define LL_WINDOWS_OUTPUT_DEBUG(a)
+#endif
+
 //this is cheaper than llcallstacks if no need to output other variables to call stacks. 
 #define llpushcallstacks LLError::LLCallStacks::push(__FUNCTION__, __LINE__)
 #define llcallstacks \
diff --git a/indra/llcommon/llerrorcontrol.h b/indra/llcommon/llerrorcontrol.h
index 480654b1a2..480654b1a2 100644..100755
--- a/indra/llcommon/llerrorcontrol.h
+++ b/indra/llcommon/llerrorcontrol.h
diff --git a/indra/llcommon/llerrorlegacy.h b/indra/llcommon/llerrorlegacy.h
index 37cee579cd..37cee579cd 100644..100755
--- a/indra/llcommon/llerrorlegacy.h
+++ b/indra/llcommon/llerrorlegacy.h
diff --git a/indra/llcommon/llerrorthread.cpp b/indra/llcommon/llerrorthread.cpp
index 950fcd6e83..950fcd6e83 100644..100755
--- a/indra/llcommon/llerrorthread.cpp
+++ b/indra/llcommon/llerrorthread.cpp
diff --git a/indra/llcommon/llerrorthread.h b/indra/llcommon/llerrorthread.h
index 474cef3a50..474cef3a50 100644..100755
--- a/indra/llcommon/llerrorthread.h
+++ b/indra/llcommon/llerrorthread.h
diff --git a/indra/llcommon/llevent.cpp b/indra/llcommon/llevent.cpp
index 633df01588..633df01588 100644..100755
--- a/indra/llcommon/llevent.cpp
+++ b/indra/llcommon/llevent.cpp
diff --git a/indra/llcommon/llevent.h b/indra/llcommon/llevent.h
index 8cd682b8bf..8cd682b8bf 100644..100755
--- a/indra/llcommon/llevent.h
+++ b/indra/llcommon/llevent.h
diff --git a/indra/llcommon/lleventapi.cpp b/indra/llcommon/lleventapi.cpp
index ff5459c1eb..ff5459c1eb 100644..100755
--- a/indra/llcommon/lleventapi.cpp
+++ b/indra/llcommon/lleventapi.cpp
diff --git a/indra/llcommon/lleventapi.h b/indra/llcommon/lleventapi.h
index 1a37d780b6..1a37d780b6 100644..100755
--- a/indra/llcommon/lleventapi.h
+++ b/indra/llcommon/lleventapi.h
diff --git a/indra/llcommon/lleventcoro.cpp b/indra/llcommon/lleventcoro.cpp
index 81cc33fbba..81cc33fbba 100644..100755
--- a/indra/llcommon/lleventcoro.cpp
+++ b/indra/llcommon/lleventcoro.cpp
diff --git a/indra/llcommon/lleventcoro.h b/indra/llcommon/lleventcoro.h
index 88a5e6ec74..a42af63b65 100644..100755
--- a/indra/llcommon/lleventcoro.h
+++ b/indra/llcommon/lleventcoro.h
@@ -29,8 +29,8 @@
 #if ! defined(LL_LLEVENTCORO_H)
 #define LL_LLEVENTCORO_H
 
-#include <boost/coroutine/coroutine.hpp>
-#include <boost/coroutine/future.hpp>
+#include <boost/dcoroutine/coroutine.hpp>
+#include <boost/dcoroutine/future.hpp>
 #include <boost/optional.hpp>
 #include <string>
 #include <stdexcept>
@@ -206,13 +206,13 @@ LLSD postAndWait(SELF& self, const LLSD& event, const LLEventPumpOrPumpName& req
                  const LLEventPumpOrPumpName& replyPump, const LLSD& replyPumpNamePath=LLSD())
 {
     // declare the future
-    boost::coroutines::future<LLSD> future(self);
+    boost::dcoroutines::future<LLSD> future(self);
     // make a callback that will assign a value to the future, and listen on
     // the specified LLEventPump with that callback
     std::string listenerName(LLEventDetail::listenerNameForCoro(self));
     LLTempBoundListener connection(
         replyPump.getPump().listen(listenerName,
-                                   voidlistener(boost::coroutines::make_callback(future))));
+                                   voidlistener(boost::dcoroutines::make_callback(future))));
     // skip the "post" part if requestPump is default-constructed
     if (requestPump)
     {
@@ -257,7 +257,7 @@ namespace LLEventDetail
      * This helper is specifically for the two-pump version of waitForEventOn().
      * We use a single future object, but we want to listen on two pumps with it.
      * Since we must still adapt from (the callable constructed by)
-     * boost::coroutines::make_callback() (void return) to provide an event
+     * boost::dcoroutines::make_callback() (void return) to provide an event
      * listener (bool return), we've adapted LLVoidListener for the purpose. The
      * basic idea is that we construct a distinct instance of WaitForEventOnHelper
      * -- binding different instance data -- for each of the pumps. Then, when a
@@ -331,16 +331,16 @@ LLEventWithID postAndWait2(SELF& self, const LLSD& event,
                            const LLSD& replyPump1NamePath=LLSD())
 {
     // declare the future
-    boost::coroutines::future<LLEventWithID> future(self);
+    boost::dcoroutines::future<LLEventWithID> future(self);
     // either callback will assign a value to this future; listen on
     // each specified LLEventPump with a callback
     std::string name(LLEventDetail::listenerNameForCoro(self));
     LLTempBoundListener connection0(
         replyPump0.getPump().listen(name + "a",
-                               LLEventDetail::wfeoh(boost::coroutines::make_callback(future), 0)));
+                               LLEventDetail::wfeoh(boost::dcoroutines::make_callback(future), 0)));
     LLTempBoundListener connection1(
         replyPump1.getPump().listen(name + "b",
-                               LLEventDetail::wfeoh(boost::coroutines::make_callback(future), 1)));
+                               LLEventDetail::wfeoh(boost::dcoroutines::make_callback(future), 1)));
     // skip the "post" part if requestPump is default-constructed
     if (requestPump)
     {
diff --git a/indra/llcommon/lleventdispatcher.cpp b/indra/llcommon/lleventdispatcher.cpp
index 5b6d4efbe9..5b6d4efbe9 100644..100755
--- a/indra/llcommon/lleventdispatcher.cpp
+++ b/indra/llcommon/lleventdispatcher.cpp
diff --git a/indra/llcommon/lleventdispatcher.h b/indra/llcommon/lleventdispatcher.h
index 7acc61de4e..7acc61de4e 100644..100755
--- a/indra/llcommon/lleventdispatcher.h
+++ b/indra/llcommon/lleventdispatcher.h
diff --git a/indra/llcommon/lleventemitter.h b/indra/llcommon/lleventemitter.h
index cd82fc56f9..cd82fc56f9 100644..100755
--- a/indra/llcommon/lleventemitter.h
+++ b/indra/llcommon/lleventemitter.h
diff --git a/indra/llcommon/lleventfilter.cpp b/indra/llcommon/lleventfilter.cpp
index d36a107254..d36a107254 100644..100755
--- a/indra/llcommon/lleventfilter.cpp
+++ b/indra/llcommon/lleventfilter.cpp
diff --git a/indra/llcommon/lleventfilter.h b/indra/llcommon/lleventfilter.h
index e822a664f5..e822a664f5 100644..100755
--- a/indra/llcommon/lleventfilter.h
+++ b/indra/llcommon/lleventfilter.h
diff --git a/indra/llcommon/llevents.cpp b/indra/llcommon/llevents.cpp
index 0855180dcd..0855180dcd 100644..100755
--- a/indra/llcommon/llevents.cpp
+++ b/indra/llcommon/llevents.cpp
diff --git a/indra/llcommon/llevents.h b/indra/llcommon/llevents.h
index 65b0fef354..65b0fef354 100644..100755
--- a/indra/llcommon/llevents.h
+++ b/indra/llcommon/llevents.h
diff --git a/indra/llcommon/lleventtimer.cpp b/indra/llcommon/lleventtimer.cpp
index 0d96e03da4..0d96e03da4 100644..100755
--- a/indra/llcommon/lleventtimer.cpp
+++ b/indra/llcommon/lleventtimer.cpp
diff --git a/indra/llcommon/lleventtimer.h b/indra/llcommon/lleventtimer.h
index 7f42623d01..7f42623d01 100644..100755
--- a/indra/llcommon/lleventtimer.h
+++ b/indra/llcommon/lleventtimer.h
diff --git a/indra/llcommon/llextendedstatus.h b/indra/llcommon/llextendedstatus.h
index 8ce173d1ff..8ce173d1ff 100644..100755
--- a/indra/llcommon/llextendedstatus.h
+++ b/indra/llcommon/llextendedstatus.h
diff --git a/indra/llcommon/llfasttimer.cpp b/indra/llcommon/llfasttimer.cpp
index 6970c29092..024fdd1b4d 100644..100755
--- a/indra/llcommon/llfasttimer.cpp
+++ b/indra/llcommon/llfasttimer.cpp
@@ -562,6 +562,12 @@ std::vector<LLFastTimer::NamedTimer*>& LLFastTimer::NamedTimer::getChildren()
 }
 
 //static
+LLFastTimer::NamedTimer& LLFastTimer::NamedTimer::getRootNamedTimer()
+{
+        return *NamedTimerFactory::instance().getRootTimer();
+}
+
+//static
 void LLFastTimer::nextFrame()
 {
 	countsPerSecond(); // good place to calculate clock frequency
diff --git a/indra/llcommon/llfasttimer.h b/indra/llcommon/llfasttimer.h
index e42e549df5..81c4b78775 100644..100755
--- a/indra/llcommon/llfasttimer.h
+++ b/indra/llcommon/llfasttimer.h
@@ -91,6 +91,8 @@ public:
 		U32 getHistoricalCount(S32 history_index = 0) const;
 		U32 getHistoricalCalls(S32 history_index = 0) const;
 
+		static NamedTimer& getRootNamedTimer();
+
 		void setFrameState(FrameState* state) { mFrameState = state; state->setNamedTimer(this); }
 		FrameState& getFrameState() const;
 
diff --git a/indra/llcommon/llfile.cpp b/indra/llcommon/llfile.cpp
index c51d042a3d..c3a0f0bfe0 100644..100755
--- a/indra/llcommon/llfile.cpp
+++ b/indra/llcommon/llfile.cpp
@@ -56,6 +56,8 @@ std::string strerr(int errn)
 	return buffer;
 }
 
+typedef std::basic_ios<char,std::char_traits < char > > _Myios;
+
 #else
 // On Posix we want to call strerror_r(), but alarmingly, there are two
 // different variants. The one that returns int always populates the passed
@@ -324,9 +326,10 @@ const char *LLFile::tmpdir()
 
 /***************** Modified file stream created to overcome the incorrect behaviour of posix fopen in windows *******************/
 
-#if USE_LLFILESTREAMS
+#if LL_WINDOWS
 
-LLFILE *	LLFile::_Fiopen(const std::string& filename, std::ios::openmode mode,int)	// protection currently unused
+LLFILE *	LLFile::_Fiopen(const std::string& filename, 
+		std::ios::openmode mode)
 {	// open a file
 	static const char *mods[] =
 	{	// fopen mode strings corresponding to valid[i]
@@ -385,117 +388,690 @@ LLFILE *	LLFile::_Fiopen(const std::string& filename, std::ios::openmode mode,in
 	return (0);
 }
 
-/************** input file stream ********************************/
+#endif /* LL_WINDOWS */
 
-void llifstream::close()
-{	// close the C stream
-	if (_Filebuffer && _Filebuffer->close() == 0)
+/************** llstdio file buffer ********************************/
+
+
+//llstdio_filebuf* llstdio_filebuf::open(const char *_Filename,
+//	ios_base::openmode _Mode)
+//{
+//#if LL_WINDOWS
+//	_Filet *_File;
+//	if (is_open() || (_File = LLFILE::_Fiopen(_Filename, _Mode)) == 0)
+//		return (0);	// open failed
+//
+//	_Init(_File, _Openfl);
+//	_Initcvt(&_USE(_Mysb::getloc(), _Cvt));
+//	return (this);	// open succeeded
+//#else
+//	std::filebuf* _file = std::filebuf::open(_Filename, _Mode);
+//	if (NULL == _file) return NULL;
+//	return this;
+//#endif
+//}
+
+
+// *TODO: Seek the underlying c stream for better cross-platform compatibility?
+#if !LL_WINDOWS
+llstdio_filebuf::int_type llstdio_filebuf::overflow(llstdio_filebuf::int_type __c)
+{
+	int_type __ret = traits_type::eof();
+	const bool __testeof = traits_type::eq_int_type(__c, __ret);
+	const bool __testout = _M_mode & ios_base::out;
+	if (__testout && !_M_reading)
 	{
-		_Myios::setstate(ios_base::failbit);	/*Flawfinder: ignore*/
+		if (this->pbase() < this->pptr())
+		{
+			// If appropriate, append the overflow char.
+			if (!__testeof)
+			{
+				*this->pptr() = traits_type::to_char_type(__c);
+				this->pbump(1);
+			}
+
+			// Convert pending sequence to external representation,
+			// and output.
+			if (_convert_to_external(this->pbase(),
+					 this->pptr() - this->pbase()))
+			{
+				_M_set_buffer(0);
+				__ret = traits_type::not_eof(__c);
+			}
+	}
+		else if (_M_buf_size > 1)
+		{
+			// Overflow in 'uncommitted' mode: set _M_writing, set
+			// the buffer to the initial 'write' mode, and put __c
+			// into the buffer.
+			_M_set_buffer(0);
+			_M_writing = true;
+			if (!__testeof)
+			{
+				*this->pptr() = traits_type::to_char_type(__c);
+				this->pbump(1);
+			}
+			__ret = traits_type::not_eof(__c);
+		}
+		else
+		{
+			// Unbuffered.
+			char_type __conv = traits_type::to_char_type(__c);
+			if (__testeof || _convert_to_external(&__conv, 1))
+			{
+				_M_writing = true;
+				__ret = traits_type::not_eof(__c);
+			}
+		}
 	}
+	return __ret;
 }
 
-void llifstream::open(const std::string& _Filename,	/* Flawfinder: ignore */
-	ios_base::openmode _Mode,
-	int _Prot)
-{	// open a C stream with specified mode
+bool llstdio_filebuf::_convert_to_external(char_type* __ibuf,
+						std::streamsize __ilen)
+{
+	// Sizes of external and pending output.
+	streamsize __elen;
+	streamsize __plen;
+	if (__check_facet(_M_codecvt).always_noconv())
+	{
+		//__elen = _M_file.xsputn(reinterpret_cast<char*>(__ibuf), __ilen);
+		__elen = fwrite(reinterpret_cast<void*>(__ibuf), 1,
+						__ilen, _M_file.file());
+		__plen = __ilen;
+	}
+	else
+	{
+		// Worst-case number of external bytes needed.
+		// XXX Not done encoding() == -1.
+		streamsize __blen = __ilen * _M_codecvt->max_length();
+		char* __buf = static_cast<char*>(__builtin_alloca(__blen));
+
+		char* __bend;
+		const char_type* __iend;
+		codecvt_base::result __r;
+		__r = _M_codecvt->out(_M_state_cur, __ibuf, __ibuf + __ilen,
+				__iend, __buf, __buf + __blen, __bend);
 
-	LLFILE* filep = LLFile::_Fiopen(_Filename,_Mode | ios_base::in, _Prot);
-	if(filep == NULL)
+		if (__r == codecvt_base::ok || __r == codecvt_base::partial)
+			__blen = __bend - __buf;
+		else if (__r == codecvt_base::noconv)
 	{
-		_Myios::setstate(ios_base::failbit);	/*Flawfinder: ignore*/
-		return;
+			// Same as the always_noconv case above.
+			__buf = reinterpret_cast<char*>(__ibuf);
+			__blen = __ilen;
 	}
-	llassert(_Filebuffer == NULL);
-	_Filebuffer = new _Myfb(filep);
-	_ShouldClose = true;
-	_Myios::init(_Filebuffer);
+		else
+			__throw_ios_failure(__N("llstdio_filebuf::_convert_to_external "
+									"conversion error"));
+  
+		//__elen = _M_file.xsputn(__buf, __blen);
+		__elen = fwrite(__buf, 1, __blen, _M_file.file());
+		__plen = __blen;
+
+		// Try once more for partial conversions.
+		if (__r == codecvt_base::partial && __elen == __plen)
+		{
+			const char_type* __iresume = __iend;
+			streamsize __rlen = this->pptr() - __iend;
+			__r = _M_codecvt->out(_M_state_cur, __iresume,
+					__iresume + __rlen, __iend, __buf,
+					__buf + __blen, __bend);
+			if (__r != codecvt_base::error)
+			{
+				__rlen = __bend - __buf;
+				//__elen = _M_file.xsputn(__buf, __rlen);
+				__elen = fwrite(__buf, 1, __rlen, _M_file.file());
+				__plen = __rlen;
+			}
+			else
+			{
+				__throw_ios_failure(__N("llstdio_filebuf::_convert_to_external "
+										"conversion error"));
+			}
+		}
+	}
+	return __elen == __plen;
 }
 
-bool llifstream::is_open() const
-{	// test if C stream has been opened
-	if(_Filebuffer)
-		return (_Filebuffer->is_open());
-	return false;
+llstdio_filebuf::int_type llstdio_filebuf::underflow()
+{
+	int_type __ret = traits_type::eof();
+	const bool __testin = _M_mode & ios_base::in;
+	if (__testin)
+	{
+		if (_M_writing)
+		{
+			if (overflow() == traits_type::eof())
+			return __ret;
+			//_M_set_buffer(-1);
+			//_M_writing = false;
+		}
+		// Check for pback madness, and if so switch back to the
+		// normal buffers and jet outta here before expensive
+		// fileops happen...
+		_M_destroy_pback();
+
+		if (this->gptr() < this->egptr())
+			return traits_type::to_int_type(*this->gptr());
+
+		// Get and convert input sequence.
+		const size_t __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1;
+
+		// Will be set to true if ::fread() returns 0 indicating EOF.
+		bool __got_eof = false;
+		// Number of internal characters produced.
+		streamsize __ilen = 0;
+		codecvt_base::result __r = codecvt_base::ok;
+		if (__check_facet(_M_codecvt).always_noconv())
+		{
+			//__ilen = _M_file.xsgetn(reinterpret_cast<char*>(this->eback()),
+			//			__buflen);
+			__ilen = fread(reinterpret_cast<void*>(this->eback()), 1,
+						__buflen, _M_file.file());
+			if (__ilen == 0)
+				__got_eof = true;
+		}
+		else
+	    {
+			// Worst-case number of external bytes.
+			// XXX Not done encoding() == -1.
+			const int __enc = _M_codecvt->encoding();
+			streamsize __blen; // Minimum buffer size.
+			streamsize __rlen; // Number of chars to read.
+			if (__enc > 0)
+				__blen = __rlen = __buflen * __enc;
+			else
+			{
+				__blen = __buflen + _M_codecvt->max_length() - 1;
+				__rlen = __buflen;
+			}
+			const streamsize __remainder = _M_ext_end - _M_ext_next;
+			__rlen = __rlen > __remainder ? __rlen - __remainder : 0;
+
+			// An imbue in 'read' mode implies first converting the external
+			// chars already present.
+			if (_M_reading && this->egptr() == this->eback() && __remainder)
+				__rlen = 0;
+
+			// Allocate buffer if necessary and move unconverted
+			// bytes to front.
+			if (_M_ext_buf_size < __blen)
+			{
+				char* __buf = new char[__blen];
+				if (__remainder)
+					__builtin_memcpy(__buf, _M_ext_next, __remainder);
+
+				delete [] _M_ext_buf;
+				_M_ext_buf = __buf;
+				_M_ext_buf_size = __blen;
+			}
+			else if (__remainder)
+				__builtin_memmove(_M_ext_buf, _M_ext_next, __remainder);
+
+			_M_ext_next = _M_ext_buf;
+			_M_ext_end = _M_ext_buf + __remainder;
+			_M_state_last = _M_state_cur;
+
+			do
+			{
+				if (__rlen > 0)
+				{
+					// Sanity check!
+					// This may fail if the return value of
+					// codecvt::max_length() is bogus.
+					if (_M_ext_end - _M_ext_buf + __rlen > _M_ext_buf_size)
+					{
+						__throw_ios_failure(__N("llstdio_filebuf::underflow "
+							"codecvt::max_length() "
+							"is not valid"));
+					}
+					//streamsize __elen = _M_file.xsgetn(_M_ext_end, __rlen);
+					streamsize __elen = fread(_M_ext_end, 1,
+						__rlen, _M_file.file());
+					if (__elen == 0)
+						__got_eof = true;
+					else if (__elen == -1)
+					break;
+					//_M_ext_end += __elen;
+				}
+
+				char_type* __iend = this->eback();
+				if (_M_ext_next < _M_ext_end)
+				{
+					__r = _M_codecvt->in(_M_state_cur, _M_ext_next,
+							_M_ext_end, _M_ext_next,
+							this->eback(),
+							this->eback() + __buflen, __iend);
+}
+				if (__r == codecvt_base::noconv)
+{
+					size_t __avail = _M_ext_end - _M_ext_buf;
+					__ilen = std::min(__avail, __buflen);
+					traits_type::copy(this->eback(),
+						reinterpret_cast<char_type*>
+						(_M_ext_buf), __ilen);
+					_M_ext_next = _M_ext_buf + __ilen;
+				}
+				else
+					__ilen = __iend - this->eback();
+
+				// _M_codecvt->in may return error while __ilen > 0: this is
+				// ok, and actually occurs in case of mixed encodings (e.g.,
+				// XML files).
+				if (__r == codecvt_base::error)
+					break;
+
+				__rlen = 1;
+			} while (__ilen == 0 && !__got_eof);
+		}
+
+		if (__ilen > 0)
+		{
+			_M_set_buffer(__ilen);
+			_M_reading = true;
+			__ret = traits_type::to_int_type(*this->gptr());
+		}
+		else if (__got_eof)
+		{
+			// If the actual end of file is reached, set 'uncommitted'
+			// mode, thus allowing an immediate write without an
+			// intervening seek.
+			_M_set_buffer(-1);
+			_M_reading = false;
+			// However, reaching it while looping on partial means that
+			// the file has got an incomplete character.
+			if (__r == codecvt_base::partial)
+				__throw_ios_failure(__N("llstdio_filebuf::underflow "
+					"incomplete character in file"));
+		}
+		else if (__r == codecvt_base::error)
+			__throw_ios_failure(__N("llstdio_filebuf::underflow "
+					"invalid byte sequence in file"));
+		else
+			__throw_ios_failure(__N("llstdio_filebuf::underflow "
+					"error reading the file"));
+	}
+	return __ret;
+}
+
+std::streamsize llstdio_filebuf::xsgetn(char_type* __s, std::streamsize __n)
+{
+	// Clear out pback buffer before going on to the real deal...
+	streamsize __ret = 0;
+	if (_M_pback_init)
+	{
+		if (__n > 0 && this->gptr() == this->eback())
+		{
+			*__s++ = *this->gptr();
+			this->gbump(1);
+			__ret = 1;
+			--__n;
+		}
+		_M_destroy_pback();
+	}
+       
+	// Optimization in the always_noconv() case, to be generalized in the
+	// future: when __n > __buflen we read directly instead of using the
+	// buffer repeatedly.
+	const bool __testin = _M_mode & ios_base::in;
+	const streamsize __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1;
+
+	if (__n > __buflen && __check_facet(_M_codecvt).always_noconv()
+		&& __testin && !_M_writing)
+	{
+		// First, copy the chars already present in the buffer.
+		const streamsize __avail = this->egptr() - this->gptr();
+		if (__avail != 0)
+		{
+			if (__avail == 1)
+				*__s = *this->gptr();
+			else
+				traits_type::copy(__s, this->gptr(), __avail);
+			__s += __avail;
+			this->gbump(__avail);
+			__ret += __avail;
+			__n -= __avail;
+		}
+
+		// Need to loop in case of short reads (relatively common
+		// with pipes).
+		streamsize __len;
+		for (;;)
+		{
+			//__len = _M_file.xsgetn(reinterpret_cast<char*>(__s), __n);
+			__len = fread(reinterpret_cast<void*>(__s), 1, 
+						__n, _M_file.file());
+			if (__len == -1)
+				__throw_ios_failure(__N("llstdio_filebuf::xsgetn "
+										"error reading the file"));
+			if (__len == 0)
+				break;
+
+			__n -= __len;
+			__ret += __len;
+			if (__n == 0)
+				break;
+
+			__s += __len;
+		}
+
+		if (__n == 0)
+		{
+			_M_set_buffer(0);
+			_M_reading = true;
+		}
+		else if (__len == 0)
+		{
+			// If end of file is reached, set 'uncommitted'
+			// mode, thus allowing an immediate write without
+			// an intervening seek.
+			_M_set_buffer(-1);
+			_M_reading = false;
+		}
+	}
+	else
+		__ret += __streambuf_type::xsgetn(__s, __n);
+
+	return __ret;
 }
-llifstream::~llifstream()
+
+std::streamsize llstdio_filebuf::xsputn(char_type* __s, std::streamsize __n)
 {
-	if (_ShouldClose)
+	// Optimization in the always_noconv() case, to be generalized in the
+	// future: when __n is sufficiently large we write directly instead of
+	// using the buffer.
+	streamsize __ret = 0;
+	const bool __testout = _M_mode & ios_base::out;
+	if (__check_facet(_M_codecvt).always_noconv()
+		&& __testout && !_M_reading)
+	{
+		// Measurement would reveal the best choice.
+		const streamsize __chunk = 1ul << 10;
+		streamsize __bufavail = this->epptr() - this->pptr();
+
+		// Don't mistake 'uncommitted' mode buffered with unbuffered.
+		if (!_M_writing && _M_buf_size > 1)
+			__bufavail = _M_buf_size - 1;
+
+		const streamsize __limit = std::min(__chunk, __bufavail);
+		if (__n >= __limit)
+		{
+			const streamsize __buffill = this->pptr() - this->pbase();
+			const char* __buf = reinterpret_cast<const char*>(this->pbase());
+			//__ret = _M_file.xsputn_2(__buf, __buffill,
+			//			reinterpret_cast<const char*>(__s), __n);
+			if (__buffill)
+			{
+				__ret = fwrite(__buf, 1, __buffill, _M_file.file());
+			}
+			if (__ret == __buffill)
 	{
-		close();
+				__ret += fwrite(reinterpret_cast<const char*>(__s), 1,
+								__n, _M_file.file());
+	}
+			if (__ret == __buffill + __n)
+			{
+				_M_set_buffer(0);
+				_M_writing = true;
+}
+			if (__ret > __buffill)
+				__ret -= __buffill;
+			else
+				__ret = 0;
+		}
+		else
+			__ret = __streambuf_type::xsputn(__s, __n);
 	}
-	delete _Filebuffer;
+	else
+		__ret = __streambuf_type::xsputn(__s, __n);
+    return __ret;
+}
+
+int llstdio_filebuf::sync()
+{
+	return (_M_file.sync() == 0 ? 0 : -1);
 }
+#endif
+
+/************** input file stream ********************************/
+
 
+llifstream::llifstream() : _M_filebuf(),
+#if LL_WINDOWS
+	std::istream(&_M_filebuf) {}
+#else
+	std::istream()
+{
+	this->init(&_M_filebuf);
+}
+#endif
+
+// explicit
 llifstream::llifstream(const std::string& _Filename,
-	ios_base::openmode _Mode,
-	int _Prot)
-	: std::basic_istream< char , std::char_traits< char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
+		ios_base::openmode _Mode) : _M_filebuf(),
+#if LL_WINDOWS
+	std::istream(&_M_filebuf)
+{
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0)
+	{
+		_Myios::setstate(ios_base::failbit);
+	}
+}
+#else
+	std::istream()
+{
+	this->init(&_M_filebuf);
+	this->open(_Filename.c_str(), _Mode | ios_base::in);
+}
+#endif
 
-{	// construct with named file and specified mode
-	open(_Filename, _Mode | ios_base::in, _Prot);	/* Flawfinder: ignore */
+// explicit
+llifstream::llifstream(const char* _Filename, 
+		ios_base::openmode _Mode) : _M_filebuf(),
+#if LL_WINDOWS
+	std::istream(&_M_filebuf)
+{
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0)
+	{
+		_Myios::setstate(ios_base::failbit);
+}
+}
+#else
+	std::istream()
+{
+	this->init(&_M_filebuf);
+	this->open(_Filename, _Mode | ios_base::in);
 }
+#endif
 
 
-/************** output file stream ********************************/
+// explicit
+llifstream::llifstream(_Filet *_File,
+		ios_base::openmode _Mode, size_t _Size) :
+	_M_filebuf(_File, _Mode, _Size),
+#if LL_WINDOWS
+	std::istream(&_M_filebuf) {}
+#else
+	std::istream()
+{
+	this->init(&_M_filebuf);
+}
+#endif
 
-bool llofstream::is_open() const
+#if !LL_WINDOWS
+// explicit
+llifstream::llifstream(int __fd,
+		ios_base::openmode _Mode, size_t _Size) :
+	_M_filebuf(__fd, _Mode, _Size),
+	std::istream()
+{
+	this->init(&_M_filebuf);
+}
+#endif
+
+bool llifstream::is_open() const
 {	// test if C stream has been opened
-	if(_Filebuffer)
-		return (_Filebuffer->is_open());
-	return false;
+	return _M_filebuf.is_open();
 }
 
-void llofstream::open(const std::string& _Filename,	/* Flawfinder: ignore */
-	ios_base::openmode _Mode,
-	int _Prot)
+void llifstream::open(const char* _Filename, ios_base::openmode _Mode)
 {	// open a C stream with specified mode
 
-	LLFILE* filep = LLFile::_Fiopen(_Filename,_Mode | ios_base::out, _Prot);
-	if(filep == NULL)
+#if LL_WINDOWS
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::in) == 0)
 	{
-		_Myios::setstate(ios_base::failbit);	/*Flawfinder: ignore*/
-		return;
+		_Myios::setstate(ios_base::failbit);
 	}
-	llassert(_Filebuffer==NULL);
-	_Filebuffer = new _Myfb(filep);
-	_ShouldClose = true;
-	_Myios::init(_Filebuffer);
+	else
+	{
+		_Myios::clear();
+	}
+#else
+	if (_M_filebuf.open(_Filename, _Mode | ios_base::in) == 0)
+	{
+		this->setstate(ios_base::failbit);
+	}
+	else
+	{
+		this->clear();
+	}
+#endif
 }
 
-void llofstream::close()
+void llifstream::close()
 {	// close the C stream
-	if(is_open())
+	if (_M_filebuf.close() == 0)
 	{
-		if (_Filebuffer->close() == 0)
-		{
-			_Myios::setstate(ios_base::failbit);	/*Flawfinder: ignore*/
+#if LL_WINDOWS
+		_Myios::setstate(ios_base::failbit);
+#else
+		this->setstate(ios_base::failbit);
+#endif
 		}
-		delete _Filebuffer;
-		_Filebuffer = NULL;
-		_ShouldClose = false;
 	}
+
+
+/************** output file stream ********************************/
+
+
+llofstream::llofstream() : _M_filebuf(),
+#if LL_WINDOWS
+	std::ostream(&_M_filebuf) {}
+#else
+	std::ostream()
+{
+	this->init(&_M_filebuf);
 }
+#endif
 
+// explicit
 llofstream::llofstream(const std::string& _Filename,
-	std::ios_base::openmode _Mode,
-	int _Prot)
-		: std::basic_ostream<char,std::char_traits < char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
-{	// construct with named file and specified mode
-	open(_Filename, _Mode , _Prot);	/* Flawfinder: ignore */
+		ios_base::openmode _Mode) : _M_filebuf(),
+#if LL_WINDOWS
+	std::ostream(&_M_filebuf)
+{
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
+	{
+		_Myios::setstate(ios_base::failbit);
+	}
+}
+#else
+	std::ostream()
+{
+	this->init(&_M_filebuf);
+	this->open(_Filename.c_str(), _Mode | ios_base::out);
+}
+#endif
+
+// explicit
+llofstream::llofstream(const char* _Filename,
+		ios_base::openmode _Mode) : _M_filebuf(),
+#if LL_WINDOWS
+	std::ostream(&_M_filebuf)
+{
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
+	{
+		_Myios::setstate(ios_base::failbit);
+	}
+}
+#else
+	std::ostream()
+{
+	this->init(&_M_filebuf);
+	this->open(_Filename, _Mode | ios_base::out);
+}
+#endif
+
+// explicit
+llofstream::llofstream(_Filet *_File,
+			ios_base::openmode _Mode, size_t _Size) :
+	_M_filebuf(_File, _Mode, _Size),
+#if LL_WINDOWS
+	std::ostream(&_M_filebuf) {}
+#else
+	std::ostream()
+{
+	this->init(&_M_filebuf);
 }
+#endif
 
-llofstream::~llofstream()
+#if !LL_WINDOWS
+// explicit
+llofstream::llofstream(int __fd,
+			ios_base::openmode _Mode, size_t _Size) :
+	_M_filebuf(__fd, _Mode, _Size),
+	std::ostream()
 {
-	// destroy the object
-	if (_ShouldClose)
+	this->init(&_M_filebuf);
+}
+#endif
+
+bool llofstream::is_open() const
+{	// test if C stream has been opened
+	return _M_filebuf.is_open();
+}
+
+void llofstream::open(const char* _Filename, ios_base::openmode _Mode)
+{	// open a C stream with specified mode
+#if LL_WINDOWS
+	llutf16string wideName = utf8str_to_utf16str( _Filename );
+	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
+{
+		_Myios::setstate(ios_base::failbit);
+	}
+	else
 	{
-		close();
+		_Myios::clear();
 	}
-	delete _Filebuffer;
+#else
+	if (_M_filebuf.open(_Filename, _Mode | ios_base::out) == 0)
+	{
+		this->setstate(ios_base::failbit);
+	}
+	else
+	{
+		this->clear();
+	}
+#endif
 }
 
-#endif // #if USE_LLFILESTREAMS
+void llofstream::close()
+{	// close the C stream
+	if (_M_filebuf.close() == 0)
+	{
+#if LL_WINDOWS
+		_Myios::setstate(ios_base::failbit);
+#else
+		this->setstate(ios_base::failbit);
+#endif
+	}
+}
 
 /************** helper functions ********************************/
 
diff --git a/indra/llcommon/llfile.h b/indra/llcommon/llfile.h
index dd7d36513a..d59e68367e 100644..100755
--- a/indra/llcommon/llfile.h
+++ b/indra/llcommon/llfile.h
@@ -38,13 +38,6 @@
 typedef FILE	LLFILE;
 
 #include <fstream>
-
-#ifdef LL_WINDOWS
-#define	USE_LLFILESTREAMS	1
-#else
-#define	USE_LLFILESTREAMS	0
-#endif
-
 #include <sys/stat.h>
 
 #if LL_WINDOWS
@@ -52,6 +45,8 @@ typedef FILE	LLFILE;
 typedef struct _stat	llstat;
 #else
 typedef struct stat		llstat;
+#include <ext/stdio_filebuf.h>
+#include <bits/postypes.h>
 #endif
 
 #ifndef S_ISREG
@@ -83,142 +78,342 @@ public:
 	static	int		stat(const std::string&	filename,llstat*	file_status);
 	static	bool	isdir(const std::string&	filename);
 	static	bool	isfile(const std::string&	filename);
-	static	LLFILE *	_Fiopen(const std::string& filename, std::ios::openmode mode,int);	// protection currently unused
+	static	LLFILE *	_Fiopen(const std::string& filename, 
+			std::ios::openmode mode);
 
 	static  const char * tmpdir();
 };
 
+/**
+ *  @brief Provides a layer of compatibility for C/POSIX.
+ *
+ *  This is taken from both the GNU __gnu_cxx::stdio_filebuf extension and 
+ *  VC's basic_filebuf implementation.
+ *  This file buffer provides extensions for working with standard C FILE*'s 
+ *  and POSIX file descriptors for platforms that support this.
+*/
+namespace
+{
+#if LL_WINDOWS
+typedef std::filebuf						_Myfb;
+#else
+typedef  __gnu_cxx::stdio_filebuf< char >	_Myfb;
+typedef std::__c_file						_Filet;
+#endif /* LL_WINDOWS */
+}
 
-#if USE_LLFILESTREAMS
-
-class LL_COMMON_API llifstream	:	public	std::basic_istream < char , std::char_traits < char > >
+class LL_COMMON_API llstdio_filebuf : public _Myfb
 {
-	// input stream associated with a C stream
 public:
-	typedef std::basic_ifstream<char,std::char_traits < char > > _Myt;
-	typedef std::basic_filebuf<char,std::char_traits< char > > _Myfb;
-	typedef std::basic_ios<char,std::char_traits< char > > _Myios;
-
-	llifstream()
-		: std::basic_istream<char,std::char_traits< char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
-	{	// construct unopened
-	}
+	/**
+	 * deferred initialization / destruction
+	*/
+	llstdio_filebuf() : _Myfb() {}
+	virtual ~llstdio_filebuf() {} 
+
+	/**
+	 *  @param  f  An open @c FILE*.
+	 *  @param  mode  Same meaning as in a standard filebuf.
+	 *  @param  size  Optimal or preferred size of internal buffer, in chars.
+	 *                Defaults to system's @c BUFSIZ.
+	 *
+	 *  This constructor associates a file stream buffer with an open
+	 *  C @c FILE*.  The @c FILE* will not be automatically closed when the
+	 *  stdio_filebuf is closed/destroyed.
+	*/
+	llstdio_filebuf(_Filet* __f, std::ios_base::openmode __mode,
+		    //size_t __size = static_cast<size_t>(BUFSIZ)) :
+		    size_t __size = static_cast<size_t>(1)) :
+#if LL_WINDOWS
+		_Myfb(__f) {}
+#else
+		_Myfb(__f, __mode, __size) {}
+#endif
 
-	explicit llifstream(const std::string& _Filename,
-		ios_base::openmode _Mode = ios_base::in,
-		int _Prot = (int)ios_base::_Openprot);
-
-	explicit llifstream(_Filet *_File)
-		: std::basic_istream<char,std::char_traits< char > >(NULL,true),
-			_Filebuffer(new _Myfb(_File)),
-			_ShouldClose(false)
-	{	// construct with specified C stream
-	}
-	virtual ~llifstream();
-
-	_Myfb *rdbuf() const
-	{	// return pointer to file buffer
-		return _Filebuffer;
-	}
-	bool is_open() const;
-	void open(const std::string& _Filename,	/* Flawfinder: ignore */
-		ios_base::openmode _Mode = ios_base::in,
-		int _Prot = (int)ios_base::_Openprot);	
-	void close();
+	/**
+	 *  @brief  Opens an external file.
+	 *  @param  s  The name of the file.
+	 *  @param  mode  The open mode flags.
+	 *  @return  @c this on success, NULL on failure
+	 *
+	 *  If a file is already open, this function immediately fails.
+	 *  Otherwise it tries to open the file named @a s using the flags
+	 *  given in @a mode.
+	*/
+	//llstdio_filebuf* open(const char *_Filename,
+	//		std::ios_base::openmode _Mode);
+
+	/**
+	 *  @param  fd  An open file descriptor.
+	 *  @param  mode  Same meaning as in a standard filebuf.
+	 *  @param  size  Optimal or preferred size of internal buffer, in chars.
+	 *
+	 *  This constructor associates a file stream buffer with an open
+	 *  POSIX file descriptor. The file descriptor will be automatically
+	 *  closed when the stdio_filebuf is closed/destroyed.
+	*/
+#if !LL_WINDOWS
+	llstdio_filebuf(int __fd, std::ios_base::openmode __mode,
+		//size_t __size = static_cast<size_t>(BUFSIZ)) :
+		size_t __size = static_cast<size_t>(1)) :
+		_Myfb(__fd, __mode, __size) {}
+#endif
 
-private:
-	_Myfb* _Filebuffer;	// the file buffer
-	bool _ShouldClose;
+// *TODO: Seek the underlying c stream for better cross-platform compatibility?
+#if !LL_WINDOWS
+protected:
+	/** underflow() and uflow() functions are called to get the next
+	 *  character from the real input source when the buffer is empty.
+	 *  Buffered input uses underflow()
+	*/
+	/*virtual*/ int_type underflow();
+
+	/*  Convert internal byte sequence to external, char-based
+	 * sequence via codecvt.
+	*/
+	bool _convert_to_external(char_type*, std::streamsize);
+
+	/** The overflow() function is called to transfer characters to the
+	 *  real output destination when the buffer is full. A call to
+	 *  overflow(c) outputs the contents of the buffer plus the
+	 *  character c.
+	 *  Consume some sequence of the characters in the pending sequence.
+	*/
+	/*virtual*/ int_type overflow(int_type __c = traits_type::eof());
+
+	/** sync() flushes the underlying @c FILE* stream.
+	*/
+	/*virtual*/ int sync();
+
+	std::streamsize xsgetn(char_type*, std::streamsize);
+	std::streamsize xsputn(char_type*, std::streamsize);
+#endif
 };
 
 
-class LL_COMMON_API llofstream	:	public	std::basic_ostream< char , std::char_traits < char > >
+/**
+ *  @brief  Controlling input for files.
+ *
+ *  This class supports reading from named files, using the inherited
+ *  functions from std::basic_istream.  To control the associated
+ *  sequence, an instance of std::basic_filebuf (or a platform-specific derivative)
+ *  which allows construction using a pre-exisintg file stream buffer. 
+ *  We refer to this std::basic_filebuf (or derivative) as @c sb.
+*/
+class LL_COMMON_API llifstream	:	public	std::istream
 {
+	// input stream associated with a C stream
 public:
-	typedef std::basic_ostream< char , std::char_traits < char > > _Myt;
-	typedef std::basic_filebuf< char , std::char_traits < char > > _Myfb;
-	typedef std::basic_ios<char,std::char_traits < char > > _Myios;
-
-	llofstream()
-		: std::basic_ostream<char,std::char_traits < char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false)
-	{	// construct unopened
-	}
-
-	explicit llofstream(const std::string& _Filename,
-		std::ios_base::openmode _Mode = ios_base::out,
-		int _Prot = (int)std::ios_base::_Openprot);
+	// Constructors:
+	/**
+	 *  @brief  Default constructor.
+	 *
+	 *  Initializes @c sb using its default constructor, and passes
+	 *  @c &sb to the base class initializer.  Does not open any files
+	 *  (you haven't given it a filename to open).
+	*/
+	llifstream();
+
+	/**
+	 *  @brief  Create an input file stream.
+	 *  @param  Filename  String specifying the filename.
+	 *  @param  Mode  Open file in specified mode (see std::ios_base).
+	 *
+     *  @c ios_base::in is automatically included in @a mode.
+	*/
+	explicit llifstream(const std::string& _Filename,
+			ios_base::openmode _Mode = ios_base::in);
+	explicit llifstream(const char* _Filename,
+			ios_base::openmode _Mode = ios_base::in);
+
+	/**
+	 *  @brief  Create a stream using an open c file stream.
+	 *  @param  File  An open @c FILE*.
+        @param  Mode  Same meaning as in a standard filebuf.
+        @param  Size  Optimal or preferred size of internal buffer, in chars.
+                      Defaults to system's @c BUFSIZ.
+	*/
+	explicit llifstream(_Filet *_File,
+			ios_base::openmode _Mode = ios_base::in,
+			//size_t _Size = static_cast<size_t>(BUFSIZ));
+			size_t _Size = static_cast<size_t>(1));
 	
+	/**
+	 *  @brief  Create a stream using an open file descriptor.
+	 *  @param  fd    An open file descriptor.
+        @param  Mode  Same meaning as in a standard filebuf.
+        @param  Size  Optimal or preferred size of internal buffer, in chars.
+                      Defaults to system's @c BUFSIZ.
+	*/
+#if !LL_WINDOWS
+	explicit llifstream(int __fd,
+			ios_base::openmode _Mode = ios_base::in,
+			//size_t _Size = static_cast<size_t>(BUFSIZ));
+			size_t _Size = static_cast<size_t>(1));
+#endif
 
-	explicit llofstream(_Filet *_File)
-		: std::basic_ostream<char,std::char_traits < char > >(NULL,true),
-			_Filebuffer(new _Myfb(_File)),//_File)
-			_ShouldClose(false)
-	{	// construct with specified C stream
-	}
-
-	virtual ~llofstream();
-
-	_Myfb *rdbuf() const
-	{	// return pointer to file buffer
-		return _Filebuffer;
-	}
-
+	/**
+	 *  @brief  The destructor does nothing.
+	 *
+	 *  The file is closed by the filebuf object, not the formatting
+	 *  stream.
+	*/
+	virtual ~llifstream() {}
+
+	// Members:
+	/**
+	 *  @brief  Accessing the underlying buffer.
+	 *  @return  The current basic_filebuf buffer.
+	 *
+	 *  This hides both signatures of std::basic_ios::rdbuf().
+	*/
+	llstdio_filebuf* rdbuf() const
+	{ return const_cast<llstdio_filebuf*>(&_M_filebuf); }
+
+	/**
+	 *  @brief  Wrapper to test for an open file.
+	 *  @return  @c rdbuf()->is_open()
+	*/
 	bool is_open() const;
 
-	void open(const std::string& _Filename,ios_base::openmode _Mode = ios_base::out,int _Prot = (int)ios_base::_Openprot);	/* Flawfinder: ignore */
-
+	/**
+	 *  @brief  Opens an external file.
+	 *  @param  Filename  The name of the file.
+	 *  @param  Node  The open mode flags.
+	 *
+	 *  Calls @c llstdio_filebuf::open(s,mode|in).  If that function
+	 *  fails, @c failbit is set in the stream's error state.
+	*/
+	void open(const std::string& _Filename,
+			ios_base::openmode _Mode = ios_base::in)
+	{ open(_Filename.c_str(), _Mode); }
+	void open(const char* _Filename,
+			ios_base::openmode _Mode = ios_base::in);
+
+	/**
+	 *  @brief  Close the file.
+	 *
+	 *  Calls @c llstdio_filebuf::close().  If that function
+	 *  fails, @c failbit is set in the stream's error state.
+	*/
 	void close();
 
 private:
-	_Myfb *_Filebuffer;	// the file buffer
-	bool _ShouldClose;
-};
-
-
-
-#else
-//Use standard file streams on non windows platforms
-//#define	llifstream	std::ifstream
-//#define	llofstream	std::ofstream
-
-class LL_COMMON_API llifstream	:	public	std::ifstream
-{
-public:
-	llifstream() : std::ifstream()
-	{
-	}
-
-	explicit llifstream(const std::string& _Filename, std::_Ios_Openmode _Mode = in)
-		: std::ifstream(_Filename.c_str(), _Mode)
-	{
-	}
-	void open(const std::string& _Filename, std::_Ios_Openmode _Mode = in)	/* Flawfinder: ignore */
-	{
-		std::ifstream::open(_Filename.c_str(), _Mode);
-	}
+	llstdio_filebuf _M_filebuf;
 };
 
 
-class LL_COMMON_API llofstream	:	public	std::ofstream
+/**
+ *  @brief  Controlling output for files.
+ *
+ *  This class supports writing to named files, using the inherited
+ *  functions from std::basic_ostream.  To control the associated
+ *  sequence, an instance of std::basic_filebuf (or a platform-specific derivative)
+ *  which allows construction using a pre-exisintg file stream buffer. 
+ *  We refer to this std::basic_filebuf (or derivative) as @c sb.
+*/
+class LL_COMMON_API llofstream	:	public	std::ostream
 {
 public:
-	llofstream() : std::ofstream()
-	{
-	}
+	// Constructors:
+	/**
+	 *  @brief  Default constructor.
+	 *
+	 *  Initializes @c sb using its default constructor, and passes
+	 *  @c &sb to the base class initializer.  Does not open any files
+	 *  (you haven't given it a filename to open).
+	*/
+	llofstream();
+
+	/**
+	 *  @brief  Create an output file stream.
+	 *  @param  Filename  String specifying the filename.
+	 *  @param  Mode  Open file in specified mode (see std::ios_base).
+	 *
+	 *  @c ios_base::out|ios_base::trunc is automatically included in
+	 *  @a mode.
+	*/
+	explicit llofstream(const std::string& _Filename,
+			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
+	explicit llofstream(const char* _Filename,
+			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
+
+	/**
+	 *  @brief  Create a stream using an open c file stream.
+	 *  @param  File  An open @c FILE*.
+        @param  Mode  Same meaning as in a standard filebuf.
+        @param  Size  Optimal or preferred size of internal buffer, in chars.
+                      Defaults to system's @c BUFSIZ.
+	*/
+	explicit llofstream(_Filet *_File,
+			ios_base::openmode _Mode = ios_base::out,
+			//size_t _Size = static_cast<size_t>(BUFSIZ));
+			size_t _Size = static_cast<size_t>(1));
+
+	/**
+	 *  @brief  Create a stream using an open file descriptor.
+	 *  @param  fd    An open file descriptor.
+        @param  Mode  Same meaning as in a standard filebuf.
+        @param  Size  Optimal or preferred size of internal buffer, in chars.
+                      Defaults to system's @c BUFSIZ.
+	*/
+#if !LL_WINDOWS
+	explicit llofstream(int __fd,
+			ios_base::openmode _Mode = ios_base::out,
+			//size_t _Size = static_cast<size_t>(BUFSIZ));
+			size_t _Size = static_cast<size_t>(1));
+#endif
 
-	explicit llofstream(const std::string& _Filename, std::_Ios_Openmode _Mode = out)
-		: std::ofstream(_Filename.c_str(), _Mode)
-	{
-	}
+	/**
+	 *  @brief  The destructor does nothing.
+	 *
+	 *  The file is closed by the filebuf object, not the formatting
+	 *  stream.
+	*/
+	virtual ~llofstream() {}
+
+	// Members:
+	/**
+	 *  @brief  Accessing the underlying buffer.
+	 *  @return  The current basic_filebuf buffer.
+	 *
+	 *  This hides both signatures of std::basic_ios::rdbuf().
+	*/
+	llstdio_filebuf* rdbuf() const
+	{ return const_cast<llstdio_filebuf*>(&_M_filebuf); }
+
+	/**
+	 *  @brief  Wrapper to test for an open file.
+	 *  @return  @c rdbuf()->is_open()
+	*/
+	bool is_open() const;
 
-	void open(const std::string& _Filename, std::_Ios_Openmode _Mode = out)	/* Flawfinder: ignore */
-	{
-		std::ofstream::open(_Filename.c_str(), _Mode);
-	}
+	/**
+	 *  @brief  Opens an external file.
+	 *  @param  Filename  The name of the file.
+	 *  @param  Node  The open mode flags.
+	 *
+	 *  Calls @c llstdio_filebuf::open(s,mode|out).  If that function
+	 *  fails, @c failbit is set in the stream's error state.
+	*/
+	void open(const std::string& _Filename,
+			ios_base::openmode _Mode = ios_base::out|ios_base::trunc)
+	{ open(_Filename.c_str(), _Mode); }
+	void open(const char* _Filename,
+			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
+
+	/**
+	 *  @brief  Close the file.
+	 *
+	 *  Calls @c llstdio_filebuf::close().  If that function
+	 *  fails, @c failbit is set in the stream's error state.
+	*/
+	void close();
 
+private:
+	llstdio_filebuf _M_filebuf;
 };
 
-#endif
 
 /**
  * @breif filesize helpers.
diff --git a/indra/llcommon/llfindlocale.cpp b/indra/llcommon/llfindlocale.cpp
index cd7c0c7c09..cd7c0c7c09 100644..100755
--- a/indra/llcommon/llfindlocale.cpp
+++ b/indra/llcommon/llfindlocale.cpp
diff --git a/indra/llcommon/llfindlocale.h b/indra/llcommon/llfindlocale.h
index 6770db5774..6770db5774 100644..100755
--- a/indra/llcommon/llfindlocale.h
+++ b/indra/llcommon/llfindlocale.h
diff --git a/indra/llcommon/llfixedbuffer.cpp b/indra/llcommon/llfixedbuffer.cpp
index d394f179fb..d394f179fb 100644..100755
--- a/indra/llcommon/llfixedbuffer.cpp
+++ b/indra/llcommon/llfixedbuffer.cpp
diff --git a/indra/llcommon/llfixedbuffer.h b/indra/llcommon/llfixedbuffer.h
index 554cf48a4c..554cf48a4c 100644..100755
--- a/indra/llcommon/llfixedbuffer.h
+++ b/indra/llcommon/llfixedbuffer.h
diff --git a/indra/llcommon/llfoldertype.cpp b/indra/llcommon/llfoldertype.cpp
index f6d0f5bce8..f6d0f5bce8 100644..100755
--- a/indra/llcommon/llfoldertype.cpp
+++ b/indra/llcommon/llfoldertype.cpp
diff --git a/indra/llcommon/llformat.cpp b/indra/llcommon/llformat.cpp
index 3b2b3038ea..3b2b3038ea 100644..100755
--- a/indra/llcommon/llformat.cpp
+++ b/indra/llcommon/llformat.cpp
diff --git a/indra/llcommon/llformat.h b/indra/llcommon/llformat.h
index a4ec5e01de..a4ec5e01de 100644..100755
--- a/indra/llcommon/llformat.h
+++ b/indra/llcommon/llformat.h
diff --git a/indra/llcommon/llframetimer.cpp b/indra/llcommon/llframetimer.cpp
index ec64195b21..ec64195b21 100644..100755
--- a/indra/llcommon/llframetimer.cpp
+++ b/indra/llcommon/llframetimer.cpp
diff --git a/indra/llcommon/llframetimer.h b/indra/llcommon/llframetimer.h
index 45754f3785..45754f3785 100644..100755
--- a/indra/llcommon/llframetimer.h
+++ b/indra/llcommon/llframetimer.h
diff --git a/indra/llcommon/llhandle.h b/indra/llcommon/llhandle.h
index 401e4d759a..401e4d759a 100644..100755
--- a/indra/llcommon/llhandle.h
+++ b/indra/llcommon/llhandle.h
diff --git a/indra/llcommon/llhash.h b/indra/llcommon/llhash.h
index c077ebe93f..c077ebe93f 100644..100755
--- a/indra/llcommon/llhash.h
+++ b/indra/llcommon/llhash.h
diff --git a/indra/llcommon/llheartbeat.cpp b/indra/llcommon/llheartbeat.cpp
index 18a0c489bd..18a0c489bd 100644..100755
--- a/indra/llcommon/llheartbeat.cpp
+++ b/indra/llcommon/llheartbeat.cpp
diff --git a/indra/llcommon/llheartbeat.h b/indra/llcommon/llheartbeat.h
index 4a75fcc103..4a75fcc103 100644..100755
--- a/indra/llcommon/llheartbeat.h
+++ b/indra/llcommon/llheartbeat.h
diff --git a/indra/llcommon/llhttpstatuscodes.h b/indra/llcommon/llhttpstatuscodes.h
index 0173461dad..0173461dad 100644..100755
--- a/indra/llcommon/llhttpstatuscodes.h
+++ b/indra/llcommon/llhttpstatuscodes.h
diff --git a/indra/llcommon/llindexedqueue.h b/indra/llcommon/llindexedqueue.h
index aa2675d87d..aa2675d87d 100644..100755
--- a/indra/llcommon/llindexedqueue.h
+++ b/indra/llcommon/llindexedqueue.h
diff --git a/indra/llcommon/llinitparam.cpp b/indra/llcommon/llinitparam.cpp
index 89c831d296..89c831d296 100644..100755
--- a/indra/llcommon/llinitparam.cpp
+++ b/indra/llcommon/llinitparam.cpp
diff --git a/indra/llcommon/llinitparam.h b/indra/llcommon/llinitparam.h
index ae836645b9..ae836645b9 100644..100755
--- a/indra/llcommon/llinitparam.h
+++ b/indra/llcommon/llinitparam.h
diff --git a/indra/llcommon/llinstancetracker.cpp b/indra/llcommon/llinstancetracker.cpp
index 5dc3ea5d7b..5dc3ea5d7b 100644..100755
--- a/indra/llcommon/llinstancetracker.cpp
+++ b/indra/llcommon/llinstancetracker.cpp
diff --git a/indra/llcommon/llinstancetracker.h b/indra/llcommon/llinstancetracker.h
index 1eab270e3c..1eab270e3c 100644..100755
--- a/indra/llcommon/llinstancetracker.h
+++ b/indra/llcommon/llinstancetracker.h
diff --git a/indra/llcommon/llkeythrottle.h b/indra/llcommon/llkeythrottle.h
index 1f576cc19e..1f576cc19e 100644..100755
--- a/indra/llcommon/llkeythrottle.h
+++ b/indra/llcommon/llkeythrottle.h
diff --git a/indra/llcommon/llkeyusetracker.h b/indra/llcommon/llkeyusetracker.h
index 1fb222dd40..1fb222dd40 100644..100755
--- a/indra/llcommon/llkeyusetracker.h
+++ b/indra/llcommon/llkeyusetracker.h
diff --git a/indra/llcommon/lllazy.cpp b/indra/llcommon/lllazy.cpp
index 29fa040387..29fa040387 100644..100755
--- a/indra/llcommon/lllazy.cpp
+++ b/indra/llcommon/lllazy.cpp
diff --git a/indra/llcommon/lllazy.h b/indra/llcommon/lllazy.h
index 5f3bbce79e..5f3bbce79e 100644..100755
--- a/indra/llcommon/lllazy.h
+++ b/indra/llcommon/lllazy.h
diff --git a/indra/llcommon/llleap.cpp b/indra/llcommon/llleap.cpp
index 0a57ef1c48..0a57ef1c48 100644..100755
--- a/indra/llcommon/llleap.cpp
+++ b/indra/llcommon/llleap.cpp
diff --git a/indra/llcommon/llleap.h b/indra/llcommon/llleap.h
index 1a1ad23d39..1a1ad23d39 100644..100755
--- a/indra/llcommon/llleap.h
+++ b/indra/llcommon/llleap.h
diff --git a/indra/llcommon/llleaplistener.cpp b/indra/llcommon/llleaplistener.cpp
index fa5730f112..fa5730f112 100644..100755
--- a/indra/llcommon/llleaplistener.cpp
+++ b/indra/llcommon/llleaplistener.cpp
diff --git a/indra/llcommon/llleaplistener.h b/indra/llcommon/llleaplistener.h
index 2193d81b9e..2193d81b9e 100644..100755
--- a/indra/llcommon/llleaplistener.h
+++ b/indra/llcommon/llleaplistener.h
diff --git a/indra/llcommon/lllinkedqueue.h b/indra/llcommon/lllinkedqueue.h
index 8336608809..8336608809 100644..100755
--- a/indra/llcommon/lllinkedqueue.h
+++ b/indra/llcommon/lllinkedqueue.h
diff --git a/indra/llcommon/lllistenerwrapper.h b/indra/llcommon/lllistenerwrapper.h
index 09d074abca..09d074abca 100644..100755
--- a/indra/llcommon/lllistenerwrapper.h
+++ b/indra/llcommon/lllistenerwrapper.h
diff --git a/indra/llcommon/llliveappconfig.cpp b/indra/llcommon/llliveappconfig.cpp
index 3a3dfa9f28..3a3dfa9f28 100644..100755
--- a/indra/llcommon/llliveappconfig.cpp
+++ b/indra/llcommon/llliveappconfig.cpp
diff --git a/indra/llcommon/llliveappconfig.h b/indra/llcommon/llliveappconfig.h
index 4fd7c26a07..4fd7c26a07 100644..100755
--- a/indra/llcommon/llliveappconfig.h
+++ b/indra/llcommon/llliveappconfig.h
diff --git a/indra/llcommon/lllivefile.cpp b/indra/llcommon/lllivefile.cpp
index c1987baf55..c1987baf55 100644..100755
--- a/indra/llcommon/lllivefile.cpp
+++ b/indra/llcommon/lllivefile.cpp
diff --git a/indra/llcommon/lllivefile.h b/indra/llcommon/lllivefile.h
index 320aa4bc3e..320aa4bc3e 100644..100755
--- a/indra/llcommon/lllivefile.h
+++ b/indra/llcommon/lllivefile.h
diff --git a/indra/llcommon/lllocalidhashmap.h b/indra/llcommon/lllocalidhashmap.h
index 8f4f91a560..8f4f91a560 100644..100755
--- a/indra/llcommon/lllocalidhashmap.h
+++ b/indra/llcommon/lllocalidhashmap.h
diff --git a/indra/llcommon/lllog.cpp b/indra/llcommon/lllog.cpp
index fc4058b5c9..fc4058b5c9 100644..100755
--- a/indra/llcommon/lllog.cpp
+++ b/indra/llcommon/lllog.cpp
diff --git a/indra/llcommon/lllog.h b/indra/llcommon/lllog.h
index 7964412e83..7964412e83 100644..100755
--- a/indra/llcommon/lllog.h
+++ b/indra/llcommon/lllog.h
diff --git a/indra/llcommon/lllslconstants.h b/indra/llcommon/lllslconstants.h
index 9f32598e61..9f32598e61 100644..100755
--- a/indra/llcommon/lllslconstants.h
+++ b/indra/llcommon/lllslconstants.h
diff --git a/indra/llcommon/llmap.h b/indra/llcommon/llmap.h
index 6294a15d3b..6294a15d3b 100644..100755
--- a/indra/llcommon/llmap.h
+++ b/indra/llcommon/llmap.h
diff --git a/indra/llcommon/llmd5.cpp b/indra/llcommon/llmd5.cpp
index 1409c55d1c..1409c55d1c 100644..100755
--- a/indra/llcommon/llmd5.cpp
+++ b/indra/llcommon/llmd5.cpp
diff --git a/indra/llcommon/llmd5.h b/indra/llcommon/llmd5.h
index 1526e6ac3c..1526e6ac3c 100644..100755
--- a/indra/llcommon/llmd5.h
+++ b/indra/llcommon/llmd5.h
diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 70ad10ad55..70ad10ad55 100644..100755
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
diff --git a/indra/llcommon/llmemory.h b/indra/llcommon/llmemory.h
index e725bdd9fa..e725bdd9fa 100644..100755
--- a/indra/llcommon/llmemory.h
+++ b/indra/llcommon/llmemory.h
diff --git a/indra/llcommon/llmemorystream.cpp b/indra/llcommon/llmemorystream.cpp
index 723d94f025..723d94f025 100644..100755
--- a/indra/llcommon/llmemorystream.cpp
+++ b/indra/llcommon/llmemorystream.cpp
diff --git a/indra/llcommon/llmemorystream.h b/indra/llcommon/llmemorystream.h
index e28f012192..e28f012192 100644..100755
--- a/indra/llcommon/llmemorystream.h
+++ b/indra/llcommon/llmemorystream.h
diff --git a/indra/llcommon/llmetricperformancetester.cpp b/indra/llcommon/llmetricperformancetester.cpp
index 41d3eb0bf3..731e58bd20 100644..100755
--- a/indra/llcommon/llmetricperformancetester.cpp
+++ b/indra/llcommon/llmetricperformancetester.cpp
@@ -100,7 +100,7 @@ LLSD LLMetricPerformanceTesterBasic::analyzeMetricPerformanceLog(std::istream& i
 	LLSD ret;
 	LLSD cur;
 	
-	while (!is.eof() && LLSDSerialize::fromXML(cur, is))
+	while (!is.eof() && LLSDParser::PARSE_FAILURE != LLSDSerialize::fromXML(cur, is))
 	{
 		for (LLSD::map_iterator iter = cur.beginMap(); iter != cur.endMap(); ++iter)
 		{
diff --git a/indra/llcommon/llmetricperformancetester.h b/indra/llcommon/llmetricperformancetester.h
index 1a18cdf36f..1a18cdf36f 100644..100755
--- a/indra/llcommon/llmetricperformancetester.h
+++ b/indra/llcommon/llmetricperformancetester.h
diff --git a/indra/llcommon/llmetrics.cpp b/indra/llcommon/llmetrics.cpp
index 3078139f43..3078139f43 100644..100755
--- a/indra/llcommon/llmetrics.cpp
+++ b/indra/llcommon/llmetrics.cpp
diff --git a/indra/llcommon/llmetrics.h b/indra/llcommon/llmetrics.h
index 4f0ae56338..4f0ae56338 100644..100755
--- a/indra/llcommon/llmetrics.h
+++ b/indra/llcommon/llmetrics.h
diff --git a/indra/llcommon/llmortician.cpp b/indra/llcommon/llmortician.cpp
index 287f096eae..287f096eae 100644..100755
--- a/indra/llcommon/llmortician.cpp
+++ b/indra/llcommon/llmortician.cpp
diff --git a/indra/llcommon/llmortician.h b/indra/llcommon/llmortician.h
index 319955ef93..319955ef93 100644..100755
--- a/indra/llcommon/llmortician.h
+++ b/indra/llcommon/llmortician.h
diff --git a/indra/llcommon/llnametable.h b/indra/llcommon/llnametable.h
index d3283543f3..d3283543f3 100644..100755
--- a/indra/llcommon/llnametable.h
+++ b/indra/llcommon/llnametable.h
diff --git a/indra/llcommon/lloptioninterface.cpp b/indra/llcommon/lloptioninterface.cpp
index 23fae76dc0..23fae76dc0 100644..100755
--- a/indra/llcommon/lloptioninterface.cpp
+++ b/indra/llcommon/lloptioninterface.cpp
diff --git a/indra/llcommon/lloptioninterface.h b/indra/llcommon/lloptioninterface.h
index 93b465db32..93b465db32 100644..100755
--- a/indra/llcommon/lloptioninterface.h
+++ b/indra/llcommon/lloptioninterface.h
diff --git a/indra/llcommon/llpointer.h b/indra/llcommon/llpointer.h
index 88c09c8dca..88c09c8dca 100644..100755
--- a/indra/llcommon/llpointer.h
+++ b/indra/llcommon/llpointer.h
diff --git a/indra/llcommon/llpreprocessor.h b/indra/llcommon/llpreprocessor.h
index 7fdb537ab5..7fdb537ab5 100644..100755
--- a/indra/llcommon/llpreprocessor.h
+++ b/indra/llcommon/llpreprocessor.h
diff --git a/indra/llcommon/llpriqueuemap.h b/indra/llcommon/llpriqueuemap.h
index da997c7b04..da997c7b04 100644..100755
--- a/indra/llcommon/llpriqueuemap.h
+++ b/indra/llcommon/llpriqueuemap.h
diff --git a/indra/llcommon/llprocess.cpp b/indra/llcommon/llprocess.cpp
index 715df36f39..715df36f39 100644..100755
--- a/indra/llcommon/llprocess.cpp
+++ b/indra/llcommon/llprocess.cpp
diff --git a/indra/llcommon/llprocess.h b/indra/llcommon/llprocess.h
index d711ce2f74..d711ce2f74 100644..100755
--- a/indra/llcommon/llprocess.h
+++ b/indra/llcommon/llprocess.h
diff --git a/indra/llcommon/llprocessor.cpp b/indra/llcommon/llprocessor.cpp
index fd8f603d21..fd8f603d21 100644..100755
--- a/indra/llcommon/llprocessor.cpp
+++ b/indra/llcommon/llprocessor.cpp
diff --git a/indra/llcommon/llprocessor.h b/indra/llcommon/llprocessor.h
index 6364d3c8bb..6364d3c8bb 100644..100755
--- a/indra/llcommon/llprocessor.h
+++ b/indra/llcommon/llprocessor.h
diff --git a/indra/llcommon/llptrskiplist.h b/indra/llcommon/llptrskiplist.h
index 67c7cde352..67c7cde352 100644..100755
--- a/indra/llcommon/llptrskiplist.h
+++ b/indra/llcommon/llptrskiplist.h
diff --git a/indra/llcommon/llptrskipmap.h b/indra/llcommon/llptrskipmap.h
index 94bc71ec55..94bc71ec55 100644..100755
--- a/indra/llcommon/llptrskipmap.h
+++ b/indra/llcommon/llptrskipmap.h
diff --git a/indra/llcommon/llptrto.cpp b/indra/llcommon/llptrto.cpp
index b270291bd6..b270291bd6 100644..100755
--- a/indra/llcommon/llptrto.cpp
+++ b/indra/llcommon/llptrto.cpp
diff --git a/indra/llcommon/llptrto.h b/indra/llcommon/llptrto.h
index 7091d36f6b..7091d36f6b 100644..100755
--- a/indra/llcommon/llptrto.h
+++ b/indra/llcommon/llptrto.h
diff --git a/indra/llcommon/llqueuedthread.cpp b/indra/llcommon/llqueuedthread.cpp
index abf47a0f57..abf47a0f57 100644..100755
--- a/indra/llcommon/llqueuedthread.cpp
+++ b/indra/llcommon/llqueuedthread.cpp
diff --git a/indra/llcommon/llqueuedthread.h b/indra/llcommon/llqueuedthread.h
index d3704b0fe2..d3704b0fe2 100644..100755
--- a/indra/llcommon/llqueuedthread.h
+++ b/indra/llcommon/llqueuedthread.h
diff --git a/indra/llcommon/llrand.cpp b/indra/llcommon/llrand.cpp
index cb28a8f5c3..cb28a8f5c3 100644..100755
--- a/indra/llcommon/llrand.cpp
+++ b/indra/llcommon/llrand.cpp
diff --git a/indra/llcommon/llrand.h b/indra/llcommon/llrand.h
index ad317d5bf7..ad317d5bf7 100644..100755
--- a/indra/llcommon/llrand.h
+++ b/indra/llcommon/llrand.h
diff --git a/indra/llcommon/llrefcount.cpp b/indra/llcommon/llrefcount.cpp
index e1876599fc..e1876599fc 100644..100755
--- a/indra/llcommon/llrefcount.cpp
+++ b/indra/llcommon/llrefcount.cpp
diff --git a/indra/llcommon/llrefcount.h b/indra/llcommon/llrefcount.h
index 32ae15435a..32ae15435a 100644..100755
--- a/indra/llcommon/llrefcount.h
+++ b/indra/llcommon/llrefcount.h
diff --git a/indra/llcommon/llregistry.h b/indra/llcommon/llregistry.h
index bb0d60247e..bb0d60247e 100644..100755
--- a/indra/llcommon/llregistry.h
+++ b/indra/llcommon/llregistry.h
diff --git a/indra/llcommon/llrun.cpp b/indra/llcommon/llrun.cpp
index f5d3f302fa..f5d3f302fa 100644..100755
--- a/indra/llcommon/llrun.cpp
+++ b/indra/llcommon/llrun.cpp
diff --git a/indra/llcommon/llrun.h b/indra/llcommon/llrun.h
index a117405366..a117405366 100644..100755
--- a/indra/llcommon/llrun.h
+++ b/indra/llcommon/llrun.h
diff --git a/indra/llcommon/llsafehandle.h b/indra/llcommon/llsafehandle.h
index 8d52d9bb15..8d52d9bb15 100644..100755
--- a/indra/llcommon/llsafehandle.h
+++ b/indra/llcommon/llsafehandle.h
diff --git a/indra/llcommon/llsd.cpp b/indra/llcommon/llsd.cpp
index 8276ec836a..8276ec836a 100644..100755
--- a/indra/llcommon/llsd.cpp
+++ b/indra/llcommon/llsd.cpp
diff --git a/indra/llcommon/llsd.h b/indra/llcommon/llsd.h
index 5eb69059ac..5eb69059ac 100644..100755
--- a/indra/llcommon/llsd.h
+++ b/indra/llcommon/llsd.h
diff --git a/indra/llcommon/llsdparam.cpp b/indra/llcommon/llsdparam.cpp
index 9f4460a988..9f4460a988 100644..100755
--- a/indra/llcommon/llsdparam.cpp
+++ b/indra/llcommon/llsdparam.cpp
diff --git a/indra/llcommon/llsdparam.h b/indra/llcommon/llsdparam.h
index 6ef5debd7b..6ef5debd7b 100644..100755
--- a/indra/llcommon/llsdparam.h
+++ b/indra/llcommon/llsdparam.h
diff --git a/indra/llcommon/llsdserialize.cpp b/indra/llcommon/llsdserialize.cpp
index 6b549e4b6f..ad4fce6f35 100644..100755
--- a/indra/llcommon/llsdserialize.cpp
+++ b/indra/llcommon/llsdserialize.cpp
@@ -1453,8 +1453,8 @@ S32 LLSDBinaryFormatter::format(const LLSD& data, std::ostream& ostr, U32 option
 	case LLSD::TypeUUID:
 	{
 		ostr.put('u');
-		LLSD::UUID value = data.asUUID();
-		ostr.write((const char*)(&value.mData), UUID_BYTES);
+		LLUUID temp = data.asUUID();
+		ostr.write((const char*)(&(temp.mData)), UUID_BYTES);
 		break;
 	}
 
diff --git a/indra/llcommon/llsdserialize.h b/indra/llcommon/llsdserialize.h
index 86e3fc864c..e7a5507385 100644..100755
--- a/indra/llcommon/llsdserialize.h
+++ b/indra/llcommon/llsdserialize.h
@@ -300,7 +300,7 @@ public:
 	/** 
 	 * @brief Constructor
 	 */
-	LLSDXMLParser();
+	LLSDXMLParser(bool emit_errors=true);
 
 protected:
 	/** 
@@ -747,25 +747,25 @@ public:
 		return f->format(sd, str, LLSDFormatter::OPTIONS_PRETTY);
 	}
 
-	static S32 fromXMLEmbedded(LLSD& sd, std::istream& str)
+	static S32 fromXMLEmbedded(LLSD& sd, std::istream& str, bool emit_errors=true)
 	{
 		// no need for max_bytes since xml formatting is not
 		// subvertable by bad sizes.
-		LLPointer<LLSDXMLParser> p = new LLSDXMLParser;
+		LLPointer<LLSDXMLParser> p = new LLSDXMLParser(emit_errors);
 		return p->parse(str, sd, LLSDSerialize::SIZE_UNLIMITED);
 	}
 	// Line oriented parser, 30% faster than fromXML(), but can
 	// only be used when you know you have the complete XML
 	// document available in the stream.
-	static S32 fromXMLDocument(LLSD& sd, std::istream& str)
+	static S32 fromXMLDocument(LLSD& sd, std::istream& str, bool emit_errors=true)
 	{
-		LLPointer<LLSDXMLParser> p = new LLSDXMLParser();
+		LLPointer<LLSDXMLParser> p = new LLSDXMLParser(emit_errors);
 		return p->parseLines(str, sd);
 	}
-	static S32 fromXML(LLSD& sd, std::istream& str)
+	static S32 fromXML(LLSD& sd, std::istream& str, bool emit_errors=true)
 	{
-		return fromXMLEmbedded(sd, str);
-//		return fromXMLDocument(sd, str);
+		return fromXMLEmbedded(sd, str, emit_errors);
+//		return fromXMLDocument(sd, str, emit_errors);
 	}
 
 	/*
diff --git a/indra/llcommon/llsdserialize_xml.cpp b/indra/llcommon/llsdserialize_xml.cpp
index 34b3dbb99a..614a2d5636 100644..100755
--- a/indra/llcommon/llsdserialize_xml.cpp
+++ b/indra/llcommon/llsdserialize_xml.cpp
@@ -250,7 +250,7 @@ std::string LLSDXMLFormatter::escapeString(const std::string& in)
 class LLSDXMLParser::Impl
 {
 public:
-	Impl();
+	Impl(bool emit_errors);
 	~Impl();
 	
 	S32 parse(std::istream& input, LLSD& data);
@@ -294,6 +294,7 @@ private:
 	
 	static const XML_Char* findAttribute(const XML_Char* name, const XML_Char** pairs);
 	
+	bool mEmitErrors;
 
 	XML_Parser	mParser;
 
@@ -315,7 +316,8 @@ private:
 };
 
 
-LLSDXMLParser::Impl::Impl()
+LLSDXMLParser::Impl::Impl(bool emit_errors)
+	: mEmitErrors(emit_errors)
 {
 	mParser = XML_ParserCreate(NULL);
 	reset();
@@ -402,7 +404,10 @@ S32 LLSDXMLParser::Impl::parse(std::istream& input, LLSD& data)
 		{
 			((char*) buffer)[count ? count - 1 : 0] = '\0';
 		}
+		if (mEmitErrors)
+		{
 		llinfos << "LLSDXMLParser::Impl::parse: XML_STATUS_ERROR parsing:" << (char*) buffer << llendl;
+		}
 		data = LLSD();
 		return LLSDParser::PARSE_FAILURE;
 	}
@@ -480,7 +485,10 @@ S32 LLSDXMLParser::Impl::parseLines(std::istream& input, LLSD& data)
 	if (status == XML_STATUS_ERROR  
 		&& !mGracefullStop)
 	{
+		if (mEmitErrors)
+		{
 		llinfos << "LLSDXMLParser::Impl::parseLines: XML_STATUS_ERROR" << llendl;
+		}
 		return LLSDParser::PARSE_FAILURE;
 	}
 
@@ -897,7 +905,7 @@ LLSDXMLParser::Impl::Element LLSDXMLParser::Impl::readElement(const XML_Char* na
 /**
  * LLSDXMLParser
  */
-LLSDXMLParser::LLSDXMLParser() : impl(* new Impl)
+LLSDXMLParser::LLSDXMLParser(bool emit_errors /* = true */) : impl(* new Impl(emit_errors))
 {
 }
 
diff --git a/indra/llcommon/llsdserialize_xml.h b/indra/llcommon/llsdserialize_xml.h
index dcc5f3d3c7..dcc5f3d3c7 100644..100755
--- a/indra/llcommon/llsdserialize_xml.h
+++ b/indra/llcommon/llsdserialize_xml.h
diff --git a/indra/llcommon/llsdutil.cpp b/indra/llcommon/llsdutil.cpp
index 803417d368..803417d368 100644..100755
--- a/indra/llcommon/llsdutil.cpp
+++ b/indra/llcommon/llsdutil.cpp
diff --git a/indra/llcommon/llsdutil.h b/indra/llcommon/llsdutil.h
index 532d3f9341..532d3f9341 100644..100755
--- a/indra/llcommon/llsdutil.h
+++ b/indra/llcommon/llsdutil.h
diff --git a/indra/llcommon/llsecondlifeurls.cpp b/indra/llcommon/llsecondlifeurls.cpp
index 9154e05e43..9154e05e43 100644..100755
--- a/indra/llcommon/llsecondlifeurls.cpp
+++ b/indra/llcommon/llsecondlifeurls.cpp
diff --git a/indra/llcommon/llsecondlifeurls.h b/indra/llcommon/llsecondlifeurls.h
index 62f357ffed..62f357ffed 100644..100755
--- a/indra/llcommon/llsecondlifeurls.h
+++ b/indra/llcommon/llsecondlifeurls.h
diff --git a/indra/llcommon/llsimplehash.h b/indra/llcommon/llsimplehash.h
index 727b4568d8..727b4568d8 100644..100755
--- a/indra/llcommon/llsimplehash.h
+++ b/indra/llcommon/llsimplehash.h
diff --git a/indra/llcommon/llsingleton.cpp b/indra/llcommon/llsingleton.cpp
index eb8e2c9456..eb8e2c9456 100644..100755
--- a/indra/llcommon/llsingleton.cpp
+++ b/indra/llcommon/llsingleton.cpp
diff --git a/indra/llcommon/llsingleton.h b/indra/llcommon/llsingleton.h
index 49d99f2cd0..49d99f2cd0 100644..100755
--- a/indra/llcommon/llsingleton.h
+++ b/indra/llcommon/llsingleton.h
diff --git a/indra/llcommon/llskiplist.h b/indra/llcommon/llskiplist.h
index ed132381f9..ed132381f9 100644..100755
--- a/indra/llcommon/llskiplist.h
+++ b/indra/llcommon/llskiplist.h
diff --git a/indra/llcommon/llskipmap.h b/indra/llcommon/llskipmap.h
index 49ff2928d1..49ff2928d1 100644..100755
--- a/indra/llcommon/llskipmap.h
+++ b/indra/llcommon/llskipmap.h
diff --git a/indra/llcommon/llsmoothstep.h b/indra/llcommon/llsmoothstep.h
index 1f97a3ec89..1f97a3ec89 100644..100755
--- a/indra/llcommon/llsmoothstep.h
+++ b/indra/llcommon/llsmoothstep.h
diff --git a/indra/llcommon/llsortedvector.h b/indra/llcommon/llsortedvector.h
index 391b82ee44..391b82ee44 100644..100755
--- a/indra/llcommon/llsortedvector.h
+++ b/indra/llcommon/llsortedvector.h
diff --git a/indra/llcommon/llstack.h b/indra/llcommon/llstack.h
index 315de6ba2d..315de6ba2d 100644..100755
--- a/indra/llcommon/llstack.h
+++ b/indra/llcommon/llstack.h
diff --git a/indra/llcommon/llstacktrace.cpp b/indra/llcommon/llstacktrace.cpp
index ccd7ef91c2..ccd7ef91c2 100644..100755
--- a/indra/llcommon/llstacktrace.cpp
+++ b/indra/llcommon/llstacktrace.cpp
diff --git a/indra/llcommon/llstacktrace.h b/indra/llcommon/llstacktrace.h
index ca72c64c5d..ca72c64c5d 100644..100755
--- a/indra/llcommon/llstacktrace.h
+++ b/indra/llcommon/llstacktrace.h
diff --git a/indra/llcommon/llstat.cpp b/indra/llcommon/llstat.cpp
index 3678c8e1c1..3678c8e1c1 100644..100755
--- a/indra/llcommon/llstat.cpp
+++ b/indra/llcommon/llstat.cpp
diff --git a/indra/llcommon/llstat.h b/indra/llcommon/llstat.h
index 38377a010b..38377a010b 100644..100755
--- a/indra/llcommon/llstat.h
+++ b/indra/llcommon/llstat.h
diff --git a/indra/llcommon/llstatenums.h b/indra/llcommon/llstatenums.h
index 81c4085d16..81c4085d16 100644..100755
--- a/indra/llcommon/llstatenums.h
+++ b/indra/llcommon/llstatenums.h
diff --git a/indra/llcommon/llstl.h b/indra/llcommon/llstl.h
index d3941e1bc9..d3941e1bc9 100644..100755
--- a/indra/llcommon/llstl.h
+++ b/indra/llcommon/llstl.h
diff --git a/indra/llcommon/llstreamqueue.cpp b/indra/llcommon/llstreamqueue.cpp
index 1116a2b6a2..1116a2b6a2 100644..100755
--- a/indra/llcommon/llstreamqueue.cpp
+++ b/indra/llcommon/llstreamqueue.cpp
diff --git a/indra/llcommon/llstreamqueue.h b/indra/llcommon/llstreamqueue.h
index 0726bad175..0726bad175 100644..100755
--- a/indra/llcommon/llstreamqueue.h
+++ b/indra/llcommon/llstreamqueue.h
diff --git a/indra/llcommon/llstreamtools.cpp b/indra/llcommon/llstreamtools.cpp
index d7a6f47932..d7a6f47932 100644..100755
--- a/indra/llcommon/llstreamtools.cpp
+++ b/indra/llcommon/llstreamtools.cpp
diff --git a/indra/llcommon/llstreamtools.h b/indra/llcommon/llstreamtools.h
index 1b04bf91d7..1b04bf91d7 100644..100755
--- a/indra/llcommon/llstreamtools.h
+++ b/indra/llcommon/llstreamtools.h
diff --git a/indra/llcommon/llstrider.h b/indra/llcommon/llstrider.h
index ed9284d2c5..ed9284d2c5 100644..100755
--- a/indra/llcommon/llstrider.h
+++ b/indra/llcommon/llstrider.h
diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index 0c32679744..22c8681983 100644..100755
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -52,6 +52,23 @@ std::string ll_safe_string(const char* in, S32 maxlen)
 	return std::string();
 }
 
+bool is_char_hex(char hex)
+{
+	if((hex >= '0') && (hex <= '9'))
+	{
+		return true;
+	}
+	else if((hex >= 'a') && (hex <='f'))
+	{
+		return true;
+	}
+	else if((hex >= 'A') && (hex <='F'))
+	{
+		return true;
+	}
+	return false; // uh - oh, not hex any more...
+}
+
 U8 hex_as_nybble(char hex)
 {
 	if((hex >= '0') && (hex <= '9'))
diff --git a/indra/llcommon/llstring.h b/indra/llcommon/llstring.h
index 119efc7957..f9702868c8 100644..100755
--- a/indra/llcommon/llstring.h
+++ b/indra/llcommon/llstring.h
@@ -470,6 +470,7 @@ inline std::string chop_tail_copy(
  * @brief This translates a nybble stored as a hex value from 0-f back
  * to a nybble in the low order bits of the return byte.
  */
+LL_COMMON_API bool is_char_hex(char hex);
 LL_COMMON_API U8 hex_as_nybble(char hex);
 
 /**
diff --git a/indra/llcommon/llstringtable.cpp b/indra/llcommon/llstringtable.cpp
index 7ad3805351..7ad3805351 100644..100755
--- a/indra/llcommon/llstringtable.cpp
+++ b/indra/llcommon/llstringtable.cpp
diff --git a/indra/llcommon/llstringtable.h b/indra/llcommon/llstringtable.h
index 59d7372ed4..59d7372ed4 100644..100755
--- a/indra/llcommon/llstringtable.h
+++ b/indra/llcommon/llstringtable.h
diff --git a/indra/llcommon/llsys.cpp b/indra/llcommon/llsys.cpp
index c96f2191f3..57a6de9060 100644..100755
--- a/indra/llcommon/llsys.cpp
+++ b/indra/llcommon/llsys.cpp
@@ -80,6 +80,7 @@ using namespace llsd;
 #	include <sys/sysinfo.h>
 #   include <stdexcept>
 const char MEMINFO_FILE[] = "/proc/meminfo";
+#   include <gnu/libc-version.h>
 #elif LL_SOLARIS
 #	include <stdio.h>
 #	include <unistd.h>
@@ -175,8 +176,41 @@ bool get_shell32_dll_version(DWORD& major, DWORD& minor, DWORD& build_number)
 }
 #endif // LL_WINDOWS
 
+// Wrap boost::regex_match() with a function that doesn't throw.
+template <typename S, typename M, typename R>
+static bool regex_match_no_exc(const S& string, M& match, const R& regex)
+{
+    try
+    {
+        return boost::regex_match(string, match, regex);
+    }
+    catch (const std::runtime_error& e)
+    {
+        LL_WARNS("LLMemoryInfo") << "error matching with '" << regex.str() << "': "
+                                 << e.what() << ":\n'" << string << "'" << LL_ENDL;
+        return false;
+    }
+}
+
+// Wrap boost::regex_search() with a function that doesn't throw.
+template <typename S, typename M, typename R>
+static bool regex_search_no_exc(const S& string, M& match, const R& regex)
+{
+    try
+    {
+        return boost::regex_search(string, match, regex);
+    }
+    catch (const std::runtime_error& e)
+    {
+        LL_WARNS("LLMemoryInfo") << "error searching with '" << regex.str() << "': "
+                                 << e.what() << ":\n'" << string << "'" << LL_ENDL;
+        return false;
+    }
+}
+
+
 LLOSInfo::LLOSInfo() :
-	mMajorVer(0), mMinorVer(0), mBuild(0)
+	mMajorVer(0), mMinorVer(0), mBuild(0), mOSVersionString("")	 
 {
 
 #if LL_WINDOWS
@@ -412,6 +446,102 @@ LLOSInfo::LLOSInfo() :
 		mOSString = mOSStringSimple;
 	}
 	
+#elif LL_LINUX
+	
+	struct utsname un;
+	if(uname(&un) != -1)
+	{
+		mOSStringSimple.append(un.sysname);
+		mOSStringSimple.append(" ");
+		mOSStringSimple.append(un.release);
+
+		mOSString = mOSStringSimple;
+		mOSString.append(" ");
+		mOSString.append(un.version);
+		mOSString.append(" ");
+		mOSString.append(un.machine);
+
+		// Simplify 'Simple'
+		std::string ostype = mOSStringSimple.substr(0, mOSStringSimple.find_first_of(" ", 0));
+		if (ostype == "Linux")
+		{
+			// Only care about major and minor Linux versions, truncate at second '.'
+			std::string::size_type idx1 = mOSStringSimple.find_first_of(".", 0);
+			std::string::size_type idx2 = (idx1 != std::string::npos) ? mOSStringSimple.find_first_of(".", idx1+1) : std::string::npos;
+			std::string simple = mOSStringSimple.substr(0, idx2);
+			if (simple.length() > 0)
+				mOSStringSimple = simple;
+		}
+	}
+	else
+	{
+		mOSStringSimple.append("Unable to collect OS info");
+		mOSString = mOSStringSimple;
+	}
+
+	const char OS_VERSION_MATCH_EXPRESSION[] = "([0-9]+)\\.([0-9]+)(\\.([0-9]+))?";
+	boost::regex os_version_parse(OS_VERSION_MATCH_EXPRESSION);
+	boost::smatch matched;
+
+	std::string glibc_version(gnu_get_libc_version());
+	if ( regex_match_no_exc(glibc_version, matched, os_version_parse) )
+	{
+		LL_INFOS("AppInit") << "Using glibc version '" << glibc_version << "' as OS version" << LL_ENDL;
+	
+		std::string version_value;
+
+		if ( matched[1].matched ) // Major version
+		{
+			version_value.assign(matched[1].first, matched[1].second);
+			if (sscanf(version_value.c_str(), "%d", &mMajorVer) != 1)
+			{
+			  LL_WARNS("AppInit") << "failed to parse major version '" << version_value << "' as a number" << LL_ENDL;
+			}
+		}
+		else
+		{
+			LL_ERRS("AppInit")
+				<< "OS version regex '" << OS_VERSION_MATCH_EXPRESSION 
+				<< "' returned true, but major version [1] did not match"
+				<< LL_ENDL;
+		}
+
+		if ( matched[2].matched ) // Minor version
+		{
+			version_value.assign(matched[2].first, matched[2].second);
+			if (sscanf(version_value.c_str(), "%d", &mMinorVer) != 1)
+			{
+			  LL_ERRS("AppInit") << "failed to parse minor version '" << version_value << "' as a number" << LL_ENDL;
+			}
+		}
+		else
+		{
+			LL_ERRS("AppInit")
+				<< "OS version regex '" << OS_VERSION_MATCH_EXPRESSION 
+				<< "' returned true, but minor version [1] did not match"
+				<< LL_ENDL;
+		}
+
+		if ( matched[4].matched ) // Build version (optional) - note that [3] includes the '.'
+		{
+			version_value.assign(matched[4].first, matched[4].second);
+			if (sscanf(version_value.c_str(), "%d", &mBuild) != 1)
+			{
+			  LL_ERRS("AppInit") << "failed to parse build version '" << version_value << "' as a number" << LL_ENDL;
+			}
+		}
+		else
+		{
+			LL_INFOS("AppInit")
+				<< "OS build version not provided; using zero"
+				<< LL_ENDL;
+		}
+	}
+	else
+	{
+		LL_WARNS("AppInit") << "glibc version '" << glibc_version << "' cannot be parsed to three numbers; using all zeros" << LL_ENDL;
+	}
+
 #else
 	
 	struct utsname un;
@@ -444,8 +574,13 @@ LLOSInfo::LLOSInfo() :
 		mOSStringSimple.append("Unable to collect OS info");
 		mOSString = mOSStringSimple;
 	}
+
 #endif
 
+	std::stringstream dotted_version_string;
+	dotted_version_string << mMajorVer << "." << mMinorVer << "." << mBuild;
+	mOSVersionString.append(dotted_version_string.str());
+
 }
 
 #ifndef LL_WINDOWS
@@ -496,6 +631,11 @@ const std::string& LLOSInfo::getOSStringSimple() const
 	return mOSStringSimple;
 }
 
+const std::string& LLOSInfo::getOSVersionString() const
+{
+	return mOSVersionString;
+}
+
 const S32 STATUS_SIZE = 8192;
 
 //static
@@ -687,38 +827,6 @@ private:
 	LLSD mStats;
 };
 
-// Wrap boost::regex_match() with a function that doesn't throw.
-template <typename S, typename M, typename R>
-static bool regex_match_no_exc(const S& string, M& match, const R& regex)
-{
-    try
-    {
-        return boost::regex_match(string, match, regex);
-    }
-    catch (const std::runtime_error& e)
-    {
-        LL_WARNS("LLMemoryInfo") << "error matching with '" << regex.str() << "': "
-                                 << e.what() << ":\n'" << string << "'" << LL_ENDL;
-        return false;
-    }
-}
-
-// Wrap boost::regex_search() with a function that doesn't throw.
-template <typename S, typename M, typename R>
-static bool regex_search_no_exc(const S& string, M& match, const R& regex)
-{
-    try
-    {
-        return boost::regex_search(string, match, regex);
-    }
-    catch (const std::runtime_error& e)
-    {
-        LL_WARNS("LLMemoryInfo") << "error searching with '" << regex.str() << "': "
-                                 << e.what() << ":\n'" << string << "'" << LL_ENDL;
-        return false;
-    }
-}
-
 LLMemoryInfo::LLMemoryInfo()
 {
 	refresh();
diff --git a/indra/llcommon/llsys.h b/indra/llcommon/llsys.h
index 739e795d3a..cfed0fff17 100644..100755
--- a/indra/llcommon/llsys.h
+++ b/indra/llcommon/llsys.h
@@ -49,6 +49,8 @@ public:
 	const std::string& getOSString() const;
 	const std::string& getOSStringSimple() const;
 
+	const std::string& getOSVersionString() const;
+	
 	S32 mMajorVer;
 	S32 mMinorVer;
 	S32 mBuild;
@@ -62,6 +64,7 @@ public:
 private:
 	std::string mOSString;
 	std::string mOSStringSimple;
+	std::string mOSVersionString;
 };
 
 
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index 1d56a52c32..1d56a52c32 100644..100755
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
diff --git a/indra/llcommon/llthread.h b/indra/llcommon/llthread.h
index 0fb89c5613..0fb89c5613 100644..100755
--- a/indra/llcommon/llthread.h
+++ b/indra/llcommon/llthread.h
diff --git a/indra/llcommon/llthreadsafequeue.cpp b/indra/llcommon/llthreadsafequeue.cpp
index 8a73e632a9..8a73e632a9 100644..100755
--- a/indra/llcommon/llthreadsafequeue.cpp
+++ b/indra/llcommon/llthreadsafequeue.cpp
diff --git a/indra/llcommon/llthreadsafequeue.h b/indra/llcommon/llthreadsafequeue.h
index 58cac38769..58cac38769 100644..100755
--- a/indra/llcommon/llthreadsafequeue.h
+++ b/indra/llcommon/llthreadsafequeue.h
diff --git a/indra/llcommon/lltimer.cpp b/indra/llcommon/lltimer.cpp
index 9ebc6de7f4..9ebc6de7f4 100644..100755
--- a/indra/llcommon/lltimer.cpp
+++ b/indra/llcommon/lltimer.cpp
diff --git a/indra/llcommon/lltimer.h b/indra/llcommon/lltimer.h
index 513de0605d..513de0605d 100644..100755
--- a/indra/llcommon/lltimer.h
+++ b/indra/llcommon/lltimer.h
diff --git a/indra/llcommon/lltreeiterators.h b/indra/llcommon/lltreeiterators.h
index ba861ae70b..ba861ae70b 100644..100755
--- a/indra/llcommon/lltreeiterators.h
+++ b/indra/llcommon/lltreeiterators.h
diff --git a/indra/llcommon/lltypeinfolookup.h b/indra/llcommon/lltypeinfolookup.h
index 0b6862444e..0b6862444e 100644..100755
--- a/indra/llcommon/lltypeinfolookup.h
+++ b/indra/llcommon/lltypeinfolookup.h
diff --git a/indra/llcommon/lluri.cpp b/indra/llcommon/lluri.cpp
index 21456a599b..37f5b3d6a3 100644..100755
--- a/indra/llcommon/lluri.cpp
+++ b/indra/llcommon/lluri.cpp
@@ -129,11 +129,30 @@ std::string LLURI::unescape(const std::string& str)
 		{
 			++it;
 			if(it == end) break;
-			U8 c = hex_as_nybble(*it++);
-			c = c << 4;
-			if (it == end) break;
-			c |= hex_as_nybble(*it);
-			ostr.put((char)c);
+
+			if(is_char_hex(*it))
+			{
+				U8 c = hex_as_nybble(*it++);
+
+				c = c << 4;
+				if (it == end) break;
+
+				if(is_char_hex(*it))
+				{
+					c |= hex_as_nybble(*it);
+					ostr.put((char)c);
+				}
+				else
+				{
+					ostr.put((char)c);
+					ostr.put(*it);
+				}
+			}
+			else
+			{
+				ostr.put('%');
+				ostr.put(*it);
+			}
 		}
 		else
 		{
diff --git a/indra/llcommon/lluri.h b/indra/llcommon/lluri.h
index c82a666e48..c82a666e48 100644..100755
--- a/indra/llcommon/lluri.h
+++ b/indra/llcommon/lluri.h
diff --git a/indra/llcommon/lluuid.cpp b/indra/llcommon/lluuid.cpp
index 0aaa50d231..0aaa50d231 100644..100755
--- a/indra/llcommon/lluuid.cpp
+++ b/indra/llcommon/lluuid.cpp
diff --git a/indra/llcommon/lluuid.h b/indra/llcommon/lluuid.h
index 7889828c85..7889828c85 100644..100755
--- a/indra/llcommon/lluuid.h
+++ b/indra/llcommon/lluuid.h
diff --git a/indra/llcommon/lluuidhashmap.h b/indra/llcommon/lluuidhashmap.h
index e294670030..e294670030 100644..100755
--- a/indra/llcommon/lluuidhashmap.h
+++ b/indra/llcommon/lluuidhashmap.h
diff --git a/indra/llcommon/llversionserver.h b/indra/llcommon/llversionserver.h
index b19ba3bf74..ef68a0eaf5 100644..100755
--- a/indra/llcommon/llversionserver.h
+++ b/indra/llcommon/llversionserver.h
@@ -30,7 +30,7 @@
 const S32 LL_VERSION_MAJOR = 2;
 const S32 LL_VERSION_MINOR = 1;
 const S32 LL_VERSION_PATCH = 0;
-const S32 LL_VERSION_BUILD = 13828;
+const S32 LL_VERSION_BUILD = 264760;
 
 const char * const LL_CHANNEL = "Second Life Server";
 
diff --git a/indra/llcommon/llversionviewer.h b/indra/llcommon/llversionviewer.h
deleted file mode 100644
index 0b0c74b3d3..0000000000
--- a/indra/llcommon/llversionviewer.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/** 
- * @file llversionviewer.h
- * @brief
- *
- * $LicenseInfo:firstyear=2002&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#ifndef LL_LLVERSIONVIEWER_H
-#define LL_LLVERSIONVIEWER_H
-
-const S32 LL_VERSION_MAJOR = 3;
-const S32 LL_VERSION_MINOR = 5;
-const S32 LL_VERSION_PATCH = 1;
-const S32 LL_VERSION_BUILD = 0;
-
-const char * const LL_CHANNEL = "Second Life Developer";
-
-#if LL_DARWIN
-const char * const LL_VERSION_BUNDLE_ID = "com.secondlife.indra.viewer";
-#endif
-
-#endif
diff --git a/indra/llcommon/llworkerthread.cpp b/indra/llcommon/llworkerthread.cpp
index 3d05a30ac2..3d05a30ac2 100644..100755
--- a/indra/llcommon/llworkerthread.cpp
+++ b/indra/llcommon/llworkerthread.cpp
diff --git a/indra/llcommon/llworkerthread.h b/indra/llcommon/llworkerthread.h
index be46394d6e..be46394d6e 100644..100755
--- a/indra/llcommon/llworkerthread.h
+++ b/indra/llcommon/llworkerthread.h
diff --git a/indra/llcommon/metaclass.cpp b/indra/llcommon/metaclass.cpp
index 5e403511cf..5e403511cf 100644..100755
--- a/indra/llcommon/metaclass.cpp
+++ b/indra/llcommon/metaclass.cpp
diff --git a/indra/llcommon/metaclass.h b/indra/llcommon/metaclass.h
index 626757d58d..626757d58d 100644..100755
--- a/indra/llcommon/metaclass.h
+++ b/indra/llcommon/metaclass.h
diff --git a/indra/llcommon/metaclasst.h b/indra/llcommon/metaclasst.h
index b9a7ae219d..b9a7ae219d 100644..100755
--- a/indra/llcommon/metaclasst.h
+++ b/indra/llcommon/metaclasst.h
diff --git a/indra/llcommon/metaproperty.cpp b/indra/llcommon/metaproperty.cpp
index 98d850bf1e..98d850bf1e 100644..100755
--- a/indra/llcommon/metaproperty.cpp
+++ b/indra/llcommon/metaproperty.cpp
diff --git a/indra/llcommon/metaproperty.h b/indra/llcommon/metaproperty.h
index bd5bb1a30f..bd5bb1a30f 100644..100755
--- a/indra/llcommon/metaproperty.h
+++ b/indra/llcommon/metaproperty.h
diff --git a/indra/llcommon/metapropertyt.h b/indra/llcommon/metapropertyt.h
index 7a36c161da..7a36c161da 100644..100755
--- a/indra/llcommon/metapropertyt.h
+++ b/indra/llcommon/metapropertyt.h
diff --git a/indra/llcommon/reflective.cpp b/indra/llcommon/reflective.cpp
index 2cc0e7e1f2..2cc0e7e1f2 100644..100755
--- a/indra/llcommon/reflective.cpp
+++ b/indra/llcommon/reflective.cpp
diff --git a/indra/llcommon/reflective.h b/indra/llcommon/reflective.h
index da5c5a2630..da5c5a2630 100644..100755
--- a/indra/llcommon/reflective.h
+++ b/indra/llcommon/reflective.h
diff --git a/indra/llcommon/reflectivet.h b/indra/llcommon/reflectivet.h
index 958921f23e..958921f23e 100644..100755
--- a/indra/llcommon/reflectivet.h
+++ b/indra/llcommon/reflectivet.h
diff --git a/indra/llcommon/roles_constants.h b/indra/llcommon/roles_constants.h
index effd15ea72..effd15ea72 100644..100755
--- a/indra/llcommon/roles_constants.h
+++ b/indra/llcommon/roles_constants.h
diff --git a/indra/llcommon/stdenums.h b/indra/llcommon/stdenums.h
index efcbe76795..efcbe76795 100644..100755
--- a/indra/llcommon/stdenums.h
+++ b/indra/llcommon/stdenums.h
diff --git a/indra/llcommon/stdtypes.h b/indra/llcommon/stdtypes.h
index bf3f3f9ee8..bf3f3f9ee8 100644..100755
--- a/indra/llcommon/stdtypes.h
+++ b/indra/llcommon/stdtypes.h
diff --git a/indra/llcommon/string_table.h b/indra/llcommon/string_table.h
index fe6416fb50..fe6416fb50 100644..100755
--- a/indra/llcommon/string_table.h
+++ b/indra/llcommon/string_table.h
diff --git a/indra/llcommon/stringize.h b/indra/llcommon/stringize.h
index 72f2e58ce1..72f2e58ce1 100644..100755
--- a/indra/llcommon/stringize.h
+++ b/indra/llcommon/stringize.h
diff --git a/indra/llcommon/tests/StringVec.h b/indra/llcommon/tests/StringVec.h
index a380b00a05..a380b00a05 100644..100755
--- a/indra/llcommon/tests/StringVec.h
+++ b/indra/llcommon/tests/StringVec.h
diff --git a/indra/llcommon/tests/bitpack_test.cpp b/indra/llcommon/tests/bitpack_test.cpp
index 4c3bc674af..afc0c18cd0 100644..100755
--- a/indra/llcommon/tests/bitpack_test.cpp
+++ b/indra/llcommon/tests/bitpack_test.cpp
@@ -71,7 +71,6 @@ namespace tut
 		U8 packbuffer[255];
 		U8 unpackbuffer[255];
 		int pack_bufsize = 0;
-		int unpack_bufsize = 0;
 
 		LLBitPack bitpack(packbuffer, 255);
 
@@ -81,21 +80,20 @@ namespace tut
 		pack_bufsize = bitpack.flushBitPack();
 
 		LLBitPack bitunpack(packbuffer, pack_bufsize*8);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 0", unpackbuffer[0] == (U8) str[0]);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 1", unpackbuffer[0] == (U8) str[1]);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 2", unpackbuffer[0] == (U8) str[2]);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 3", unpackbuffer[0] == (U8) str[3]);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 4", unpackbuffer[0] == (U8) str[4]);
-		unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8);
+		bitunpack.bitUnpack(&unpackbuffer[0], 8);
 		ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]);
-		unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, 8*4); // Life
+		bitunpack.bitUnpack(unpackbuffer, 8*4); // Life
 		ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4);
-		ensure("keep compiler quiet", unpack_bufsize == unpack_bufsize);
 	}
 
 	// U32 packing
diff --git a/indra/llcommon/tests/commonmisc_test.cpp b/indra/llcommon/tests/commonmisc_test.cpp
index b115c153c1..b115c153c1 100644..100755
--- a/indra/llcommon/tests/commonmisc_test.cpp
+++ b/indra/llcommon/tests/commonmisc_test.cpp
diff --git a/indra/llcommon/tests/listener.h b/indra/llcommon/tests/listener.h
index 9c5c18a150..9c5c18a150 100644..100755
--- a/indra/llcommon/tests/listener.h
+++ b/indra/llcommon/tests/listener.h
diff --git a/indra/llcommon/tests/llallocator_heap_profile_test.cpp b/indra/llcommon/tests/llallocator_heap_profile_test.cpp
index 44a9705803..44a9705803 100644..100755
--- a/indra/llcommon/tests/llallocator_heap_profile_test.cpp
+++ b/indra/llcommon/tests/llallocator_heap_profile_test.cpp
diff --git a/indra/llcommon/tests/llallocator_test.cpp b/indra/llcommon/tests/llallocator_test.cpp
index 4e62eaee67..4e62eaee67 100644..100755
--- a/indra/llcommon/tests/llallocator_test.cpp
+++ b/indra/llcommon/tests/llallocator_test.cpp
diff --git a/indra/llcommon/tests/llbase64_test.cpp b/indra/llcommon/tests/llbase64_test.cpp
index d0394150fa..d0394150fa 100644..100755
--- a/indra/llcommon/tests/llbase64_test.cpp
+++ b/indra/llcommon/tests/llbase64_test.cpp
diff --git a/indra/llcommon/tests/lldate_test.cpp b/indra/llcommon/tests/lldate_test.cpp
index 7c95ccb91f..7c95ccb91f 100644..100755
--- a/indra/llcommon/tests/lldate_test.cpp
+++ b/indra/llcommon/tests/lldate_test.cpp
diff --git a/indra/llcommon/tests/lldependencies_test.cpp b/indra/llcommon/tests/lldependencies_test.cpp
index 5395d785b6..5395d785b6 100644..100755
--- a/indra/llcommon/tests/lldependencies_test.cpp
+++ b/indra/llcommon/tests/lldependencies_test.cpp
diff --git a/indra/llcommon/tests/llerror_test.cpp b/indra/llcommon/tests/llerror_test.cpp
index 279a90e51b..279a90e51b 100644..100755
--- a/indra/llcommon/tests/llerror_test.cpp
+++ b/indra/llcommon/tests/llerror_test.cpp
diff --git a/indra/llcommon/tests/lleventcoro_test.cpp b/indra/llcommon/tests/lleventcoro_test.cpp
index 901ba35b2f..5ebde1a31d 100644..100755
--- a/indra/llcommon/tests/lleventcoro_test.cpp
+++ b/indra/llcommon/tests/lleventcoro_test.cpp
@@ -64,10 +64,10 @@
 // Boost.Coroutine #include is the *first* #include of the platform header.
 // That means that client code must generally #include Boost.Coroutine headers
 // before anything else.
-#include <boost/coroutine/coroutine.hpp>
+#include <boost/dcoroutine/coroutine.hpp>
 // Normally, lleventcoro.h obviates future.hpp. We only include this because
 // we implement a "by hand" test of future functionality.
-#include <boost/coroutine/future.hpp>
+#include <boost/dcoroutine/future.hpp>
 #include <boost/bind.hpp>
 #include <boost/range.hpp>
 
@@ -78,6 +78,7 @@
 
 #include "../test/lltut.h"
 #include "llsd.h"
+#include "llsdutil.h"
 #include "llevents.h"
 #include "tests/wrapllerrs.h"
 #include "stringize.h"
@@ -87,7 +88,7 @@
 /*****************************************************************************
 *   from the banana.cpp example program borrowed for test<1>()
 *****************************************************************************/
-namespace coroutines = boost::coroutines;
+namespace coroutines = boost::dcoroutines;
 using coroutines::coroutine;
 
 template<typename Iter>
@@ -108,7 +109,7 @@ match_substring(BidirectionalIterator begin,
 		BidirectionalIterator end, 
 		std::string xmatch,
 		BOOST_DEDUCED_TYPENAME coroutine<BidirectionalIterator(void)>::self& self) { 
-  BidirectionalIterator begin_ = begin;
+//BidirectionalIterator begin_ = begin;
   for(; begin != end; ++begin) 
     if(match(begin, end, xmatch)) {
       self.yield(begin);
@@ -122,7 +123,7 @@ typedef coroutine<std::string::iterator(void)> match_coroutine_type;
 *   Test helpers
 *****************************************************************************/
 // I suspect this will be typical of coroutines used in Linden software
-typedef boost::coroutines::coroutine<void()> coroutine_type;
+typedef boost::dcoroutines::coroutine<void()> coroutine_type;
 
 /// Simulate an event API whose response is immediate: sent on receipt of the
 /// initial request, rather than after some delay. This is the case that
@@ -173,10 +174,10 @@ namespace tut
                 // ... do whatever preliminary stuff must happen ...
 
                 // declare the future
-                boost::coroutines::future<LLSD> future(self);
+                boost::dcoroutines::future<LLSD> future(self);
                 // tell the future what to wait for
                 LLTempBoundListener connection(
-                    LLEventPumps::instance().obtain("source").listen("coro", voidlistener(boost::coroutines::make_callback(future))));
+                    LLEventPumps::instance().obtain("source").listen("coro", voidlistener(boost::dcoroutines::make_callback(future))));
                 ensure("Not yet", ! future);
                 // attempting to dereference ("resolve") the future causes the calling
                 // coroutine to wait for it
@@ -213,7 +214,7 @@ namespace tut
             BEGIN
             {
                 result = postAndWait(self,
-                                     LLSD().insert("value", 17), // request event
+                                     LLSDMap("value", 17),       // request event
                                      immediateAPI.getPump(),     // requestPump
                                      "reply1",                   // replyPump
                                      "reply");                   // request["reply"] = name
@@ -226,7 +227,7 @@ namespace tut
             BEGIN
             {
                 LLEventWithID pair = ::postAndWait2(self,
-                                                    LLSD().insert("value", 18),
+                                                    LLSDMap("value", 18),
                                                     immediateAPI.getPump(),
                                                     "reply2",
                                                     "error2",
@@ -244,7 +245,7 @@ namespace tut
             BEGIN
             {
                 LLEventWithID pair = ::postAndWait2(self,
-                                                    LLSD().insert("value", 18).insert("fail", LLSD()),
+                                                    LLSDMap("value", 18)("fail", LLSD()),
                                                     immediateAPI.getPump(),
                                                     "reply2",
                                                     "error2",
@@ -273,7 +274,7 @@ namespace tut
             BEGIN
             {
                 LLCoroEventPump waiter;
-                result = waiter.postAndWait(self, LLSD().insert("value", 17),
+                result = waiter.postAndWait(self, LLSDMap("value", 17),
                                             immediateAPI.getPump(), "reply");
             }
             END
@@ -365,7 +366,7 @@ namespace tut
             BEGIN
             {
                 LLCoroEventPumps waiter;
-                LLEventWithID pair(waiter.postAndWait(self, LLSD().insert("value", 23),
+                LLEventWithID pair(waiter.postAndWait(self, LLSDMap("value", 23),
                                                       immediateAPI.getPump(), "reply", "error"));
                 result = pair.first;
                 which  = pair.second;
@@ -379,7 +380,7 @@ namespace tut
             {
                 LLCoroEventPumps waiter;
                 LLEventWithID pair(
-                    waiter.postAndWait(self, LLSD().insert("value", 23).insert("fail", LLSD()),
+                    waiter.postAndWait(self, LLSDMap("value", 23)("fail", LLSD()),
                                        immediateAPI.getPump(), "reply", "error"));
                 result = pair.first;
                 which  = pair.second;
@@ -392,7 +393,7 @@ namespace tut
             BEGIN
             {
                 LLCoroEventPumps waiter;
-                result = waiter.postAndWaitWithException(self, LLSD().insert("value", 8),
+                result = waiter.postAndWaitWithException(self, LLSDMap("value", 8),
                                                          immediateAPI.getPump(), "reply", "error");
             }
             END
@@ -406,7 +407,7 @@ namespace tut
                 try
                 {
                     result = waiter.postAndWaitWithException(self,
-                        LLSD().insert("value", 9).insert("fail", LLSD()),
+                        LLSDMap("value", 9)("fail", LLSD()),
                         immediateAPI.getPump(), "reply", "error");
                     debug("no exception");
                 }
@@ -424,7 +425,7 @@ namespace tut
             BEGIN
             {
                 LLCoroEventPumps waiter;
-                result = waiter.postAndWaitWithLog(self, LLSD().insert("value", 30),
+                result = waiter.postAndWaitWithLog(self, LLSDMap("value", 30),
                                                    immediateAPI.getPump(), "reply", "error");
             }
             END
@@ -439,7 +440,7 @@ namespace tut
                 try
                 {
                     result = waiter.postAndWaitWithLog(self,
-                        LLSD().insert("value", 31).insert("fail", LLSD()),
+                        LLSDMap("value", 31)("fail", LLSD()),
                         immediateAPI.getPump(), "reply", "error");
                     debug("no exception");
                 }
@@ -796,4 +797,18 @@ namespace tut
         ensure("no result", result.isUndefined());
         ensure_contains("got error", threw, "32");
     }
+}
+
+/*==========================================================================*|
+#include <boost/context/guarded_stack_allocator.hpp>
+
+namespace tut
+{
+    template<> template<>
+    void object::test<23>()
+    {
+        set_test_name("stacksize");
+        std::cout << "default_stacksize: " << boost::context::guarded_stack_allocator::default_stacksize() << '\n';
+    }
 } // namespace tut
+|*==========================================================================*/
diff --git a/indra/llcommon/tests/lleventdispatcher_test.cpp b/indra/llcommon/tests/lleventdispatcher_test.cpp
index 263c9b171f..263c9b171f 100644..100755
--- a/indra/llcommon/tests/lleventdispatcher_test.cpp
+++ b/indra/llcommon/tests/lleventdispatcher_test.cpp
diff --git a/indra/llcommon/tests/lleventfilter_test.cpp b/indra/llcommon/tests/lleventfilter_test.cpp
index ca05ef62a9..ca05ef62a9 100644..100755
--- a/indra/llcommon/tests/lleventfilter_test.cpp
+++ b/indra/llcommon/tests/lleventfilter_test.cpp
diff --git a/indra/llcommon/tests/llframetimer_test.cpp b/indra/llcommon/tests/llframetimer_test.cpp
index 8ac1c91a3a..8ac1c91a3a 100644..100755
--- a/indra/llcommon/tests/llframetimer_test.cpp
+++ b/indra/llcommon/tests/llframetimer_test.cpp
diff --git a/indra/llcommon/tests/llinstancetracker_test.cpp b/indra/llcommon/tests/llinstancetracker_test.cpp
index 454695ff9f..e769c3e22c 100644..100755
--- a/indra/llcommon/tests/llinstancetracker_test.cpp
+++ b/indra/llcommon/tests/llinstancetracker_test.cpp
@@ -267,7 +267,6 @@ namespace tut
         {
             existing.insert(&*uki);
         }
-        Unkeyed* puk = NULL;
         try
         {
             // We don't expect the assignment to take place because we expect
@@ -280,7 +279,7 @@ namespace tut
             // realize we're testing the C++ implementation more than
             // Unkeyed's implementation, but this seems an important point to
             // nail down.
-            puk = new Unkeyed("throw");
+            new Unkeyed("throw");
         }
         catch (const Badness&)
         {
diff --git a/indra/llcommon/tests/lllazy_test.cpp b/indra/llcommon/tests/lllazy_test.cpp
index 32a717f4fc..32a717f4fc 100644..100755
--- a/indra/llcommon/tests/lllazy_test.cpp
+++ b/indra/llcommon/tests/lllazy_test.cpp
diff --git a/indra/llcommon/tests/llleap_test.cpp b/indra/llcommon/tests/llleap_test.cpp
index 9b755e9ca5..29060d4ef5 100644..100755
--- a/indra/llcommon/tests/llleap_test.cpp
+++ b/indra/llcommon/tests/llleap_test.cpp
@@ -122,13 +122,10 @@ namespace tut
                    // finding indra/lib/python. Use our __FILE__, with
                    // raw-string syntax to deal with Windows pathnames.
                    "mydir = os.path.dirname(r'" << __FILE__ << "')\n"
-                   "try:\n"
-                   "    from llbase import llsd\n"
-                   "except ImportError:\n"
                    // We expect mydir to be .../indra/llcommon/tests.
-                   "    sys.path.insert(0,\n"
-                   "        os.path.join(mydir, os.pardir, os.pardir, 'lib', 'python'))\n"
-                   "    from indra.base import llsd\n"
+                   "sys.path.insert(0,\n"
+                   "    os.path.join(mydir, os.pardir, os.pardir, 'lib', 'python'))\n"
+                   "from indra.base import llsd\n"
                    "\n"
                    "class ProtocolError(Exception):\n"
                    "    def __init__(self, msg, data):\n"
diff --git a/indra/llcommon/tests/llmemtype_test.cpp b/indra/llcommon/tests/llmemtype_test.cpp
index 1f050d6dc7..1f050d6dc7 100644..100755
--- a/indra/llcommon/tests/llmemtype_test.cpp
+++ b/indra/llcommon/tests/llmemtype_test.cpp
diff --git a/indra/llcommon/tests/llprocess_test.cpp b/indra/llcommon/tests/llprocess_test.cpp
index 99186ed434..3e68ef068e 100644..100755
--- a/indra/llcommon/tests/llprocess_test.cpp
+++ b/indra/llcommon/tests/llprocess_test.cpp
@@ -619,7 +619,7 @@ namespace tut
     template<> template<>
     void object::test<6>()
     {
-        set_test_name("syntax_error:");
+        set_test_name("syntax_error");
         PythonProcessLauncher py(get_test_name(),
                                  "syntax_error:\n");
         py.mParams.files.add(LLProcess::FileParam()); // inherit stdin
@@ -957,10 +957,7 @@ namespace tut
                       childout.getline(), "ok");
         // important to get the implicit flush from std::endl
         py.mPy->getWritePipe().get_ostream() << "go" << std::endl;
-        for (i = 0; i < timeout && py.mPy->isRunning() && ! childout.contains("\n"); ++i)
-        {
-            yield();
-        }
+        waitfor(*py.mPy);
         ensure("script never replied", childout.contains("\n"));
         ensure_equals("child didn't ack", childout.getline(), "ack");
         ensure_equals("bad child termination", py.mPy->getStatus().mState, LLProcess::EXITED);
diff --git a/indra/llcommon/tests/llprocessor_test.cpp b/indra/llcommon/tests/llprocessor_test.cpp
index 884e1b5e5b..884e1b5e5b 100644..100755
--- a/indra/llcommon/tests/llprocessor_test.cpp
+++ b/indra/llcommon/tests/llprocessor_test.cpp
diff --git a/indra/llcommon/tests/llrand_test.cpp b/indra/llcommon/tests/llrand_test.cpp
index 383e6f9e0a..383e6f9e0a 100644..100755
--- a/indra/llcommon/tests/llrand_test.cpp
+++ b/indra/llcommon/tests/llrand_test.cpp
diff --git a/indra/llcommon/tests/llsdserialize_test.cpp b/indra/llcommon/tests/llsdserialize_test.cpp
index e625545763..4d436e8897 100644..100755
--- a/indra/llcommon/tests/llsdserialize_test.cpp
+++ b/indra/llcommon/tests/llsdserialize_test.cpp
@@ -1523,10 +1523,7 @@ namespace tut
                         "sys.path.insert(0,\n"
                         "    os.path.join(os.path.dirname(r'" __FILE__ "'),\n"
                         "                 os.pardir, os.pardir, 'lib', 'python'))\n"
-                        "try:\n"
-                        "    from llbase import llsd\n"
-                        "except ImportError:\n"
-                        "    from indra.base import llsd\n")
+                        "from indra.base import llsd\n")
         {}
         ~TestPythonCompatible() {}
 
diff --git a/indra/llcommon/tests/llsingleton_test.cpp b/indra/llcommon/tests/llsingleton_test.cpp
index 385289aefe..385289aefe 100644..100755
--- a/indra/llcommon/tests/llsingleton_test.cpp
+++ b/indra/llcommon/tests/llsingleton_test.cpp
diff --git a/indra/llcommon/tests/llstreamqueue_test.cpp b/indra/llcommon/tests/llstreamqueue_test.cpp
index 050ad5c5bf..050ad5c5bf 100644..100755
--- a/indra/llcommon/tests/llstreamqueue_test.cpp
+++ b/indra/llcommon/tests/llstreamqueue_test.cpp
diff --git a/indra/llcommon/tests/llstring_test.cpp b/indra/llcommon/tests/llstring_test.cpp
index 93d3968dbf..93d3968dbf 100644..100755
--- a/indra/llcommon/tests/llstring_test.cpp
+++ b/indra/llcommon/tests/llstring_test.cpp
diff --git a/indra/llcommon/tests/lltreeiterators_test.cpp b/indra/llcommon/tests/lltreeiterators_test.cpp
index 1d619867d4..1d619867d4 100644..100755
--- a/indra/llcommon/tests/lltreeiterators_test.cpp
+++ b/indra/llcommon/tests/lltreeiterators_test.cpp
diff --git a/indra/llcommon/tests/lluri_test.cpp b/indra/llcommon/tests/lluri_test.cpp
index 4c64f15ca7..4c64f15ca7 100644..100755
--- a/indra/llcommon/tests/lluri_test.cpp
+++ b/indra/llcommon/tests/lluri_test.cpp
diff --git a/indra/llcommon/tests/reflection_test.cpp b/indra/llcommon/tests/reflection_test.cpp
index 8980ebb1f1..8980ebb1f1 100644..100755
--- a/indra/llcommon/tests/reflection_test.cpp
+++ b/indra/llcommon/tests/reflection_test.cpp
diff --git a/indra/llcommon/tests/stringize_test.cpp b/indra/llcommon/tests/stringize_test.cpp
index 3d34f23998..3d34f23998 100644..100755
--- a/indra/llcommon/tests/stringize_test.cpp
+++ b/indra/llcommon/tests/stringize_test.cpp
diff --git a/indra/llcommon/tests/wrapllerrs.h b/indra/llcommon/tests/wrapllerrs.h
index a4d3a4e026..a4d3a4e026 100644..100755
--- a/indra/llcommon/tests/wrapllerrs.h
+++ b/indra/llcommon/tests/wrapllerrs.h
diff --git a/indra/llcommon/timer.h b/indra/llcommon/timer.h
index 82d19c2d32..82d19c2d32 100644..100755
--- a/indra/llcommon/timer.h
+++ b/indra/llcommon/timer.h
diff --git a/indra/llcommon/timing.cpp b/indra/llcommon/timing.cpp
index c2dc695ef3..c2dc695ef3 100644..100755
--- a/indra/llcommon/timing.cpp
+++ b/indra/llcommon/timing.cpp
diff --git a/indra/llcommon/timing.h b/indra/llcommon/timing.h
index c408d4c446..c408d4c446 100644..100755
--- a/indra/llcommon/timing.h
+++ b/indra/llcommon/timing.h
diff --git a/indra/llcommon/u64.cpp b/indra/llcommon/u64.cpp
index eea16c5036..eea16c5036 100644..100755
--- a/indra/llcommon/u64.cpp
+++ b/indra/llcommon/u64.cpp
diff --git a/indra/llcommon/u64.h b/indra/llcommon/u64.h
index 75c8a59136..75c8a59136 100644..100755
--- a/indra/llcommon/u64.h
+++ b/indra/llcommon/u64.h