Merge pull request #2856 from secondlife/marchcat/c-develop

Develop → Maint C sync

49 files changed, 605 insertions, 467 deletions

diff --git a/indra/cmake/00-COMPILE-LINK-RUN.txt b/indra/cmake/00-COMPILE-LINK-RUN.txt
index 1933072a6d..6cff0c0f28 100644
--- a/indra/cmake/00-COMPILE-LINK-RUN.txt
+++ b/indra/cmake/00-COMPILE-LINK-RUN.txt
@@ -162,7 +162,7 @@ Linking
 
     *  Update the autobuild.xml of ALL consumers of the library.  In
     the case of zlib, that meant updating freetype, libpng, openssl,
-    libxml2, fontconfig, curl, Boost, SDL, llqtwebkit, google-mock and
+    libxml2, fontconfig, curl, Boost, SDL2, llqtwebkit, google-mock and
     colladadom.
 
     *  Confirm by test and observation that the consumers actually use
diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index 4471380c6b..fc18ffebb5 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -15,6 +15,7 @@
 include_guard()
 
 include(Variables)
+include(Linker)
 
 # We go to some trouble to set LL_BUILD to the set of relevant compiler flags.
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{LL_BUILD}")
@@ -32,6 +33,10 @@ add_compile_definitions( ADDRESS_SIZE=${ADDRESS_SIZE})
 # -- which we do. Without one or the other, we get a ton of Boost warnings.
 add_compile_definitions(BOOST_BIND_GLOBAL_PLACEHOLDERS)
 
+# Force enable SSE2 instructions in GLM per the manual
+# https://github.com/g-truc/glm/blob/master/manual.md#section2_10
+add_compile_definitions(GLM_FORCE_DEFAULT_ALIGNED_GENTYPES=1 GLM_FORCE_SSE2=1)
+
 # Configure crash reporting
 set(RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in release builds")
 set(NON_RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in developer builds")
@@ -60,15 +65,16 @@ if (WINDOWS)
   # http://www.cmake.org/pipermail/cmake/2009-September/032143.html
   string(REPLACE "/Zm1000" " " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
 
-  # zlib has assembly-language object files incompatible with SAFESEH
   add_link_options(/LARGEADDRESSAWARE
-          /SAFESEH:NO
           /NODEFAULTLIB:LIBCMT
           /IGNORE:4099)
 
-  add_definitions(
-      -DNOMINMAX
-#      /DDOM_DYNAMIC            # For shared library colladadom
+  add_compile_definitions(
+      WIN32_LEAN_AND_MEAN
+      NOMINMAX
+#     DOM_DYNAMIC                     # For shared library colladadom
+      _CRT_SECURE_NO_WARNINGS         # Allow use of sprintf etc
+      _WINSOCK_DEPRECATED_NO_WARNINGS # Disable deprecated WinSock API warnings
       )
   add_compile_options(
           /Zo
@@ -81,6 +87,7 @@ if (WINDOWS)
           /Oy-
           /fp:fast
           /MP
+          /permissive-
       )
 
   # Nicky: x64 implies SSE2
@@ -103,64 +110,75 @@ if (WINDOWS)
     string(REPLACE "/Zi" "/Z7" CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
     string(REPLACE "/Zi" "/Z7" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
   endif()
-
-  # workaround for github runner image breakage:
-  # https://github.com/actions/runner-images/issues/10004#issuecomment-2153445161
-  # can be removed after the above issue is resolved and deployed across GHA
-  add_compile_definitions(_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
 endif (WINDOWS)
 
-
 if (LINUX)
-  set(CMAKE_SKIP_RPATH TRUE)
-
-   # EXTERNAL_TOS
-   # force this platform to accept TOS via external browser
+  set( CMAKE_BUILD_WITH_INSTALL_RPATH TRUE )
+  set( CMAKE_INSTALL_RPATH $ORIGIN $ORIGIN/../lib )
+  set(CMAKE_EXE_LINKER_FLAGS "-Wl,--exclude-libs,ALL")
+
+  find_program(CCACHE_EXE ccache)
+  if(CCACHE_EXE AND NOT DISABLE_CCACHE)
+    set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_EXE} )
+    set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_EXE} )
+  endif()
 
-   # LL_IGNORE_SIGCHLD
-   # don't catch SIGCHLD in our base application class for the viewer - some of
-   # our 3rd party libs may need their *own* SIGCHLD handler to work. Sigh! The
-   # viewer doesn't need to catch SIGCHLD anyway.
+  # LL_IGNORE_SIGCHLD
+  # don't catch SIGCHLD in our base application class for the viewer - some of
+  # our 3rd party libs may need their *own* SIGCHLD handler to work. Sigh! The
+  # viewer doesn't need to catch SIGCHLD anyway.
 
   add_compile_definitions(
           _REENTRANT
-          _FORTIFY_SOURCE=2
-          EXTERNAL_TOS
           APPID=secondlife
           LL_IGNORE_SIGCHLD
   )
+
+  if( ENABLE_ASAN )
+      add_compile_options(-U_FORTIFY_SOURCE
+        -fsanitize=address
+        --param asan-stack=0
+      )
+      add_link_options(-fsanitize=address)
+  else()
+   add_compile_definitions( _FORTIFY_SOURCE=2 )
+  endif()
+
   add_compile_options(
-          -fexceptions
-          -fno-math-errno
-          -fno-strict-aliasing
-          -fsigned-char
-          -msse2
-          -mfpmath=sse
-          -pthread
-          -Wno-parentheses
-          -Wno-deprecated
-          -fvisibility=hidden
+      -fexceptions
+      -fno-math-errno
+      -fno-strict-aliasing
+      -fsigned-char
+      -msse2
+      -mfpmath=sse
+      -pthread
+      -fvisibility=hidden
   )
 
-  if (ADDRESS_SIZE EQUAL 32)
-    add_compile_options(-march=pentium4)
-  endif (ADDRESS_SIZE EQUAL 32)
+  add_link_options(
+          -Wl,--no-keep-memory
+          -Wl,--build-id
+          -Wl,--no-undefined
+  )
 
   # this stops us requiring a really recent glibc at runtime
   add_compile_options(-fno-stack-protector)
-  # linking can be very memory-hungry, especially the final viewer link
-  set(CMAKE_CXX_LINK_FLAGS "-Wl,--no-keep-memory")
 
-  set(CMAKE_CXX_FLAGS_DEBUG "-fno-inline ${CMAKE_CXX_FLAGS_DEBUG}")
+  if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    # ND: clang is a bit more picky than GCC, the latter seems to auto include -lstdc++ and -lm. The former not so and thus fails to link
+    add_link_options(
+            -lstdc++
+            -lm
+    )
+  endif()
 endif (LINUX)
 
-
 if (DARWIN)
   # Warnings should be fatal -- thanks, Nicky Perian, for spotting reversed default
   set(CLANG_DISABLE_FATAL_WARNINGS OFF)
   set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names,-search_paths_first")
   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_CXX_LINK_FLAGS}")
-  set(DARWIN_extra_cstar_flags "-Wno-unused-local-typedef -Wno-deprecated-declarations")
+  set(DARWIN_extra_cstar_flags "-Wno-deprecated-declarations")
   # Ensure that CMAKE_CXX_FLAGS has the correct -g debug information format --
   # see Variables.cmake.
   string(REPLACE "-gdwarf-2" "-g${CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT}"
@@ -169,27 +187,26 @@ if (DARWIN)
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  ${DARWIN_extra_cstar_flags}")
   # NOTE: it's critical that the optimization flag is put in front.
   # NOTE: it's critical to have both CXX_FLAGS and C_FLAGS covered.
-## Really?? On developer machines too?
-##set(ENABLE_SIGNING TRUE)
-##set(SIGNING_IDENTITY "Developer ID Application: Linden Research, Inc.")
+  ## Really?? On developer machines too?
+  ##set(ENABLE_SIGNING TRUE)
+  ##set(SIGNING_IDENTITY "Developer ID Application: Linden Research, Inc.")
 
   # required for clang-15/xcode-15 since our boost package still uses deprecated std::unary_function/binary_function
   # see https://developer.apple.com/documentation/xcode-release-notes/xcode-15-release-notes#C++-Standard-Library
   add_compile_definitions(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION)
-endif (DARWIN)
+endif(DARWIN)
 
-if (LINUX OR DARWIN)
-  set(GCC_WARNINGS -Wall -Wno-sign-compare -Wno-trigraphs)
+if(LINUX OR DARWIN)
+  add_compile_options(-Wall -Wno-sign-compare -Wno-trigraphs -Wno-reorder -Wno-unused-but-set-variable -Wno-unused-variable -Wno-unused-local-typedef)
 
-  if (NOT GCC_DISABLE_FATAL_WARNINGS)
-    list(APPEND GCC_WARNINGS -Werror)
-  endif (NOT GCC_DISABLE_FATAL_WARNINGS)
+  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    add_compile_options(-Wno-stringop-truncation -Wno-parentheses -Wno-c++20-compat)
+  endif()
 
-  list(APPEND GCC_WARNINGS -Wno-reorder -Wno-non-virtual-dtor )
+  if (NOT GCC_DISABLE_FATAL_WARNINGS)
+    add_compile_options(-Werror)
+  endif ()
 
   add_compile_options(${GCC_WARNINGS})
   add_compile_options(-m${ADDRESS_SIZE})
 endif (LINUX OR DARWIN)
-
-
-
diff --git a/indra/cmake/APR.cmake b/indra/cmake/APR.cmake
index 21139319c3..97b316c4c7 100644
--- a/indra/cmake/APR.cmake
+++ b/indra/cmake/APR.cmake
@@ -18,6 +18,7 @@ if (WINDOWS)
           ${ARCH_PREBUILT_DIRS_RELEASE}/${APR_selector}apr-1.lib
           ${ARCH_PREBUILT_DIRS_RELEASE}/${APR_selector}aprutil-1.lib
           )
+  target_compile_definitions( ll::apr INTERFACE APR_DECLARE_STATIC=1 APU_DECLARE_STATIC=1 API_DECLARE_STATIC=1)
 elseif (DARWIN)
   if (LLCOMMON_LINK_SHARED)
     set(APR_selector     "0.dylib")
@@ -28,16 +29,15 @@ elseif (DARWIN)
   endif (LLCOMMON_LINK_SHARED)
 
   target_link_libraries( ll::apr INTERFACE
-          libapr-1.${APR_selector}
-          libaprutil-1.${APRUTIL_selector}
+          ${ARCH_PREBUILT_DIRS_RELEASE}/libapr-1.${APR_selector}
+          ${ARCH_PREBUILT_DIRS_RELEASE}/libaprutil-1.${APR_selector}
           iconv
           )
-else (WINDOWS)
+else()
   target_link_libraries( ll::apr INTERFACE
-          apr-1
-          aprutil-1
-          uuid
+          ${ARCH_PREBUILT_DIRS_RELEASE}/libapr-1.a
+          ${ARCH_PREBUILT_DIRS_RELEASE}/libaprutil-1.a
           rt
           )
-endif (WINDOWS)
+endif ()
 target_include_directories( ll::apr SYSTEM INTERFACE  ${LIBS_PREBUILT_DIR}/include/apr-1 )
diff --git a/indra/cmake/Audio.cmake b/indra/cmake/Audio.cmake
index 38547bb017..6de33af314 100644
--- a/indra/cmake/Audio.cmake
+++ b/indra/cmake/Audio.cmake
@@ -1,4 +1,5 @@
 # -*- cmake -*-
+include(Linking)
 include(Prebuilt)
 
 include_guard()
@@ -9,8 +10,17 @@ use_prebuilt_binary(ogg_vorbis)
 target_include_directories( ll::vorbis SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include )
 
 if (WINDOWS)
-  target_link_libraries(ll::vorbis INTERFACE ogg_static vorbis_static vorbisenc_static vorbisfile_static )
+  target_link_libraries(ll::vorbis INTERFACE
+        optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libogg.lib
+        debug ${ARCH_PREBUILT_DIRS_DEBUG}/libogg.lib
+        optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libvorbisenc.lib
+        debug ${ARCH_PREBUILT_DIRS_DEBUG}/libvorbisenc.lib
+        optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libvorbisfile.lib
+        debug ${ARCH_PREBUILT_DIRS_DEBUG}/libvorbisfile.lib
+        optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libvorbis.lib
+        debug ${ARCH_PREBUILT_DIRS_DEBUG}/libvorbis.lib
+    )
 else (WINDOWS)
-  target_link_libraries(ll::vorbis INTERFACE ogg vorbis vorbisenc vorbisfile )
+  target_link_libraries(ll::vorbis INTERFACE vorbisfile vorbis ogg vorbisenc )
 endif (WINDOWS)
 
diff --git a/indra/cmake/Boost.cmake b/indra/cmake/Boost.cmake
index 601a23a86d..57f44dae59 100644
--- a/indra/cmake/Boost.cmake
+++ b/indra/cmake/Boost.cmake
@@ -24,17 +24,18 @@ if (WINDOWS)
           libboost_program_options-mt${addrsfx}
           libboost_regex-mt${addrsfx}
           libboost_system-mt${addrsfx}
-          libboost_thread-mt${addrsfx})
+          libboost_thread-mt${addrsfx}
+          libboost_url-mt${addrsfx})
 elseif (LINUX)
   target_link_libraries( ll::boost INTERFACE
-          boost_context-mt${addrsfx}
           boost_fiber-mt${addrsfx}
+          boost_context-mt${addrsfx}
           boost_filesystem-mt${addrsfx}
           boost_program_options-mt${addrsfx}
           boost_regex-mt${addrsfx}
-          boost_signals-mt${addrsfx}
           boost_system-mt${addrsfx}
-          boost_thread-mt${addrsfx})
+          boost_thread-mt${addrsfx}
+          boost_url-mt${addrsfx})
 elseif (DARWIN)
   target_link_libraries( ll::boost INTERFACE
           boost_context-mt${addrsfx}
@@ -43,7 +44,8 @@ elseif (DARWIN)
           boost_program_options-mt${addrsfx}
           boost_regex-mt${addrsfx}
           boost_system-mt${addrsfx}
-          boost_thread-mt${addrsfx})
+          boost_thread-mt${addrsfx}
+          boost_url-mt${addrsfx})
 endif (WINDOWS)
 
 if (LINUX)
diff --git a/indra/cmake/CEFPlugin.cmake b/indra/cmake/CEFPlugin.cmake
index 9b77becf29..555d2aebbf 100644
--- a/indra/cmake/CEFPlugin.cmake
+++ b/indra/cmake/CEFPlugin.cmake
@@ -33,4 +33,9 @@ elseif (DARWIN)
        )
 
 elseif (LINUX)
+    target_link_libraries( ll::cef INTERFACE
+            libdullahan.a
+            cef
+            cef_dll_wrapper.a
+    )
 endif (WINDOWS)
diff --git a/indra/cmake/CMakeLists.txt b/indra/cmake/CMakeLists.txt
index df05032172..9017fc2fb4 100644
--- a/indra/cmake/CMakeLists.txt
+++ b/indra/cmake/CMakeLists.txt
@@ -15,7 +15,6 @@ set(cmake_SOURCE_FILES
         CEFPlugin.cmake
         CEFPlugin.cmake
         CMakeCopyIfDifferent.cmake
-        ConfigurePkgConfig.cmake
         CURL.cmake
         Copy3rdPartyLibs.cmake
         DBusGlib.cmake
@@ -23,14 +22,12 @@ set(cmake_SOURCE_FILES
         DragDrop.cmake
         EXPAT.cmake
         FindAutobuild.cmake
-        FMODSTUDIO.cmake
         FreeType.cmake
         GLEXT.cmake
         GLH.cmake
-        GoogleMock.cmake
+        GLM.cmake
         Havok.cmake
         Hunspell.cmake
-        JsonCpp.cmake
         LLAddBuildTest.cmake
         LLAppearance.cmake
         LLAudio.cmake
@@ -43,6 +40,7 @@ set(cmake_SOURCE_FILES
         LLTestCommand.cmake
         LLWindow.cmake
         Linking.cmake
+        Lualibs.cmake
         Meshoptimizer.cmake
         NDOF.cmake
         OPENAL.cmake
@@ -54,18 +52,18 @@ set(cmake_SOURCE_FILES
         Prebuilt.cmake
         PulseAudio.cmake
         Python.cmake
+        SDL2.cmake
         TemplateCheck.cmake
         TinyEXR.cmake
         TinyGLTF.cmake
         Tut.cmake
         UI.cmake
         UnixInstall.cmake
-        URIPARSER.cmake
         Variables.cmake
         ViewerMiscLibs.cmake
         VisualLeakDetector.cmake
         LibVLCPlugin.cmake
-        XmlRpcEpi.cmake
+        WebRTC.cmake
         xxHash.cmake
         ZLIBNG.cmake
         )
diff --git a/indra/cmake/CURL.cmake b/indra/cmake/CURL.cmake
index b9f685f37b..eea0a2da62 100644
--- a/indra/cmake/CURL.cmake
+++ b/indra/cmake/CURL.cmake
@@ -1,5 +1,6 @@
 # -*- cmake -*-
 include(Prebuilt)
+include(Linking)
 
 include_guard()
 add_library( ll::libcurl INTERFACE IMPORTED )
@@ -7,8 +8,18 @@ add_library( ll::libcurl INTERFACE IMPORTED )
 use_system_binary(libcurl)
 use_prebuilt_binary(curl)
 if (WINDOWS)
-  target_link_libraries(ll::libcurl INTERFACE libcurl.lib)
-else (WINDOWS)
-  target_link_libraries(ll::libcurl INTERFACE libcurl.a)
-endif (WINDOWS)
+  target_link_libraries(ll::libcurl INTERFACE
+    ${ARCH_PREBUILT_DIRS_RELEASE}/libcurl.lib
+    ll::openssl
+    ll::nghttp2
+    ll::zlib-ng
+    )
+else ()
+  target_link_libraries(ll::libcurl INTERFACE
+    ${ARCH_PREBUILT_DIRS_RELEASE}/libcurl.a
+    ll::openssl
+    ll::nghttp2
+    ll::zlib-ng
+    )
+endif ()
 target_include_directories( ll::libcurl SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
diff --git a/indra/cmake/ConfigurePkgConfig.cmake b/indra/cmake/ConfigurePkgConfig.cmake
deleted file mode 100644
index 9e798d663b..0000000000
--- a/indra/cmake/ConfigurePkgConfig.cmake
+++ /dev/null
@@ -1,74 +0,0 @@
-# -*- cmake -*-
-
-SET(DEBUG_PKG_CONFIG "YES")
-
-# Don't change this if manually set by user.
-IF("$ENV{PKG_CONFIG_LIBDIR}" STREQUAL "")
-
-  # Guess at architecture-specific system library paths.
-  if (ADDRESS_SIZE EQUAL 32)
-    SET(PKG_CONFIG_NO_MULTI_GUESS /usr/lib32 /usr/lib)
-    SET(PKG_CONFIG_NO_MULTI_LOCAL_GUESS /usr/local/lib32 /usr/local/lib)
-    SET(PKG_CONFIG_MULTI_GUESS /usr/lib/i386-linux-gnu)
-    SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usr/local/lib/i386-linux-gnu)
-  else (ADDRESS_SIZE EQUAL 32)
-    SET(PKG_CONFIG_NO_MULTI_GUESS /usr/lib64 /usr/lib)
-    SET(PKG_CONFIG_NO_MULTI_LOCAL_GUESS /usr/local/lib64 /usr/local/lib)
-    SET(PKG_CONFIG_MULTI_GUESS /usr/local/lib/x86_64-linux-gnu)
-    SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usr/local/lib/x86_64-linux-gnu)
-  endif (ADDRESS_SIZE EQUAL 32)
-
-  # Use DPKG architecture, if available.
-  IF (${DPKG_ARCH})
-    SET(PKG_CONFIG_MULTI_GUESS /usr/lib/${DPKG_ARCH})
-    SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usrlocal/lib/${DPKG_ARCH})
-  ENDIF (${DPKG_ARCH})
-
-  # Explicitly include anything listed in PKG_CONFIG_PATH
-  string(REPLACE ":" ";" PKG_CONFIG_PATH_LIST "$ENV{PKG_CONFIG_PATH}")
-  FOREACH(PKG_CONFIG_DIR ${PKG_CONFIG_PATH_LIST})
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_DIR}/pkgconfig")
-  ENDFOREACH(PKG_CONFIG_DIR)
-
-  # Look for valid pkgconfig directories.
-  FIND_PATH(PKG_CONFIG_ENV pkgconfig ENV LD_LIBRARY_PATH)
-  FIND_PATH(PKG_CONFIG_MULTI pkgconfig HINT ${PKG_CONFIG_MULTI_GUESS})
-  FIND_PATH(PKG_CONFIG_MULTI_LOCAL pkgconfig HINT ${PKG_CONFIG_MULTI_LOCAL_GUESS})
-  FIND_PATH(PKG_CONFIG_NO_MULTI pkgconfig HINT ${PKG_CONFIG_NO_MULTI_GUESS})
-  FIND_PATH(PKG_CONFIG_NO_MULTI_LOCAL pkgconfig HINT ${PKG_CONFIG_NO_MULTI_LOCAL_GUESS})
-
-  # Add anything we found to our list.
-  IF(NOT PKG_CONFIG_ENV STREQUAL PKG_CONFIG_ENV-NOTFOUND)
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_ENV}/pkgconfig")
-  ENDIF(NOT PKG_CONFIG_ENV STREQUAL PKG_CONFIG_ENV-NOTFOUND)
-
-  IF(NOT PKG_CONFIG_MULTI STREQUAL PKG_CONFIG_MULTI-NOTFOUND)
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_MULTI}/pkgconfig")
-  ENDIF(NOT PKG_CONFIG_MULTI STREQUAL PKG_CONFIG_MULTI-NOTFOUND)
-
-  IF(NOT PKG_CONFIG_MULTI_LOCAL STREQUAL PKG_CONFIG_MULTI_LOCAL-NOTFOUND)
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_MULTI_LOCAL}/pkgconfig")
-  ENDIF(NOT PKG_CONFIG_MULTI_LOCAL STREQUAL PKG_CONFIG_MULTI_LOCAL-NOTFOUND)
-
-  IF(NOT PKG_CONFIG_NO_MULTI STREQUAL PKG_CONFIG_NO_MULTI-NOTFOUND)
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_NO_MULTI}/pkgconfig")
-  ENDIF(NOT PKG_CONFIG_NO_MULTI STREQUAL PKG_CONFIG_NO_MULTI-NOTFOUND)
-
-  IF(NOT PKG_CONFIG_NO_MULTI_LOCAL STREQUAL PKG_CONFIG_NO_MULTI_LOCAL-NOTFOUND)
-    SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_NO_MULTI_LOCAL}/pkgconfig")
-  ENDIF(NOT PKG_CONFIG_NO_MULTI_LOCAL STREQUAL PKG_CONFIG_NO_MULTI_LOCAL-NOTFOUND)
-
-  # Also add some non-architecture specific package locations.
-  SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:/usr/share/pkgconfig:/usr/local/share/pkgconfig")
-
-  # Remove first unwanted ':'
-  string(SUBSTRING ${VALID_PKG_LIBDIRS} 1 -1 VALID_PKG_LIBDIRS)
-
-  # Set PKG_CONFIG_LIBDIR environment.
-  SET(ENV{PKG_CONFIG_LIBDIR} ${VALID_PKG_LIBDIRS})
-ENDIF("$ENV{PKG_CONFIG_LIBDIR}" STREQUAL "")
-
-IF(DEBUG_PKG_CONFIG)
-  MESSAGE(STATUS "Using PKG_CONFIG_LIBDIR=$ENV{PKG_CONFIG_LIBDIR}")
-ENDIF(DEBUG_PKG_CONFIG)
-
diff --git a/indra/cmake/Copy3rdPartyLibs.cmake b/indra/cmake/Copy3rdPartyLibs.cmake
index 27b20ee3b1..e98c77497b 100644
--- a/indra/cmake/Copy3rdPartyLibs.cmake
+++ b/indra/cmake/Copy3rdPartyLibs.cmake
@@ -7,7 +7,6 @@
 include(CMakeCopyIfDifferent)
 include(Linking)
 include(OPENAL)
-include(FMODSTUDIO)
 
 # When we copy our dependent libraries, we almost always want to copy them to
 # both the Release and the RelWithDebInfo staging directories. This has
@@ -50,26 +49,18 @@ if(WINDOWS)
     endif (ADDRESS_SIZE EQUAL 64)
 
     #*******************************
-    # Misc shared libs 
+    # Misc shared libs
 
     set(release_src_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
     set(release_files
         openjp2.dll
-        libapr-1.dll
-        libaprutil-1.dll
-        nghttp2.dll
-        libhunspell.dll
-        uriparser.dll
+        SDL2.dll
         )
 
-    # OpenSSL
-    if(ADDRESS_SIZE EQUAL 64)
-        set(release_files ${release_files} libcrypto-1_1-x64.dll)
-        set(release_files ${release_files} libssl-1_1-x64.dll)
-    else(ADDRESS_SIZE EQUAL 64)
-        set(release_files ${release_files} libcrypto-1_1.dll)
-        set(release_files ${release_files} libssl-1_1.dll)
-    endif(ADDRESS_SIZE EQUAL 64)
+    if(LLCOMMON_LINK_SHARED)
+        set(release_files ${release_files} libapr-1.dll)
+        set(release_files ${release_files} libaprutil-1.dll)
+    endif()
 
     # Filenames are different for 32/64 bit BugSplat file and we don't
     # have any control over them so need to branch.
@@ -85,12 +76,6 @@ if(WINDOWS)
       endif(ADDRESS_SIZE EQUAL 32)
     endif (USE_BUGSPLAT)
 
-    if (TARGET ll::fmodstudio)
-        # fmodL is included for logging, only one should be picked by manifest
-        set(release_files ${release_files} fmodL.dll)
-        set(release_files ${release_files} fmod.dll)
-    endif ()
-
     if (TARGET ll::openal)
         list(APPEND release_files openal32.dll alut.dll)
     endif ()
@@ -105,14 +90,28 @@ if(WINDOWS)
         set(MSVC_VER 120)
     elseif (MSVC_VERSION GREATER_EQUAL 1910 AND MSVC_VERSION LESS 1920) # Visual Studio 2017
         set(MSVC_VER 140)
+        set(MSVC_TOOLSET_VER 141)
     elseif (MSVC_VERSION GREATER_EQUAL 1920 AND MSVC_VERSION LESS 1930) # Visual Studio 2019
         set(MSVC_VER 140)
+        set(MSVC_TOOLSET_VER 142)
     elseif (MSVC_VERSION GREATER_EQUAL 1930 AND MSVC_VERSION LESS 1950) # Visual Studio 2022
         set(MSVC_VER 140)
+        set(MSVC_TOOLSET_VER 143)
     else (MSVC80)
         MESSAGE(WARNING "New MSVC_VERSION ${MSVC_VERSION} of MSVC: adapt Copy3rdPartyLibs.cmake")
     endif (MSVC80)
 
+    if (MSVC_TOOLSET_VER AND DEFINED ENV{VCTOOLSREDISTDIR})
+        if(ADDRESS_SIZE EQUAL 32)
+            set(redist_find_path "$ENV{VCTOOLSREDISTDIR}x86\\Microsoft.VC${MSVC_TOOLSET_VER}.CRT")
+        else(ADDRESS_SIZE EQUAL 32)
+            set(redist_find_path "$ENV{VCTOOLSREDISTDIR}x64\\Microsoft.VC${MSVC_TOOLSET_VER}.CRT")
+        endif(ADDRESS_SIZE EQUAL 32)
+        get_filename_component(redist_path_component "${redist_find_path}" ABSOLUTE)
+        set(redist_path ${redist_path_component} CACHE INTERNAL "MSVC Redist Path" FORCE)
+        MESSAGE(STATUS "VC Runtime redist path: ${redist_path}")
+    endif (MSVC_TOOLSET_VER AND DEFINED ENV{VCTOOLSREDISTDIR})
+
     if(ADDRESS_SIZE EQUAL 32)
         # this folder contains the 32bit DLLs.. (yes really!)
         set(registry_find_path "[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Windows;Directory]/SysWOW64")
@@ -131,11 +130,22 @@ if(WINDOWS)
     # Check each of them.
     foreach(release_msvc_file
             msvcp${MSVC_VER}.dll
-            msvcr${MSVC_VER}.dll
+            msvcp${MSVC_VER}_1.dll
+            msvcp${MSVC_VER}_2.dll
+            msvcp${MSVC_VER}_atomic_wait.dll
+            msvcp${MSVC_VER}_codecvt_ids.dll
             vcruntime${MSVC_VER}.dll
             vcruntime${MSVC_VER}_1.dll
+            vcruntime${MSVC_VER}_threads.dll
             )
-        if(EXISTS "${registry_path}/${release_msvc_file}")
+        if(DEFINED redist_path AND EXISTS "${redist_path}/${release_msvc_file}")
+            MESSAGE(STATUS "Copying redist file from ${redist_path}/${release_msvc_file}")
+            to_staging_dirs(
+                ${redist_path}
+                third_party_targets
+                ${release_msvc_file})
+        elseif(EXISTS "${registry_path}/${release_msvc_file}")
+            MESSAGE(STATUS "Copying redist file from ${registry_path}/${release_msvc_file}")
             to_staging_dirs(
                 ${registry_path}
                 third_party_targets
@@ -146,10 +156,6 @@ if(WINDOWS)
             MESSAGE(STATUS "Redist lib ${release_msvc_file} not found")
         endif()
     endforeach()
-    MESSAGE(STATUS "Will copy redist files for MSVC ${MSVC_VER}:")
-    foreach(target ${third_party_targets})
-        MESSAGE(STATUS "${target}")
-    endforeach()
 
 elseif(DARWIN)
     set(vivox_lib_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
@@ -163,23 +169,22 @@ elseif(DARWIN)
        )
     set(release_src_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
     set(release_files
-        libapr-1.0.dylib
-        libapr-1.dylib
-        libaprutil-1.0.dylib
-        libaprutil-1.dylib
-        ${EXPAT_COPY}
-        libhunspell-1.3.0.dylib
         libndofdev.dylib
-        libnghttp2.dylib
-        libnghttp2.14.dylib
-        liburiparser.dylib
-        liburiparser.1.dylib
-        liburiparser.1.0.27.dylib
+        libSDL2.dylib
+        libSDL2-2.0.dylib
        )
 
-    if (TARGET ll::fmodstudio)
-      set(debug_files ${debug_files} libfmodL.dylib)
-      set(release_files ${release_files} libfmod.dylib)
+    if(LLCOMMON_LINK_SHARED)
+        set(release_files ${release_files}
+            libapr-1.0.dylib
+            libapr-1.dylib
+            libaprutil-1.0.dylib
+            libaprutil-1.dylib
+            )
+    endif()
+
+    if (TARGET ll::openal)
+      list(APPEND release_files libalut.dylib libopenal.dylib)
     endif ()
 
 elseif(LINUX)
@@ -195,6 +200,7 @@ elseif(LINUX)
         libortp.so
         libvivoxoal.so.1
         libvivoxsdk.so
+        libSDL2.so
         )
     set(slvoice_files SLVoice)
 
@@ -208,31 +214,21 @@ elseif(LINUX)
     set(release_src_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
     # *FIX - figure out what to do with duplicate libalut.so here -brad
     set(release_files
-            ${EXPAT_COPY}
-            )
+       )
 
      if( USE_AUTOBUILD_3P )
          list( APPEND release_files
                  libapr-1.so.0
                  libaprutil-1.so.0
-                 libatk-1.0.so
-                 libfreetype.so.6.6.2
-                 libfreetype.so.6
-                 libhunspell-1.3.so.0.0.0
-                 libopenjp2.so
-                 libuuid.so.16
-                 libuuid.so.16.0.22
-                 libfontconfig.so.1.8.0
-                 libfontconfig.so.1
-                 libgmodule-2.0.so
-                 libgobject-2.0.so
                  )
-     endif()
 
-    if (TARGET ll::fmodstudio)
-      set(debug_files ${debug_files} "libfmodL.so")
-      set(release_files ${release_files} "libfmod.so")
-    endif ()
+        if(LLCOMMON_LINK_SHARED)
+            set(release_files ${release_files}
+                libapr-1.so.0
+                libaprutil-1.so.0
+                )
+        endif()
+     endif()
 
 else(WINDOWS)
     message(STATUS "WARNING: unrecognized platform for staging 3rd party libs, skipping...")
diff --git a/indra/cmake/EXPAT.cmake b/indra/cmake/EXPAT.cmake
index 327fe8aa72..1a0b8789dc 100644
--- a/indra/cmake/EXPAT.cmake
+++ b/indra/cmake/EXPAT.cmake
@@ -7,14 +7,13 @@ add_library( ll::expat INTERFACE IMPORTED )
 use_system_binary(expat)
 use_prebuilt_binary(expat)
 if (WINDOWS)
-    target_link_libraries( ll::expat  INTERFACE libexpatMT )
-    set(EXPAT_COPY libexpatMT.dll)
-else (WINDOWS)
-    target_link_libraries( ll::expat INTERFACE expat )
-    if (DARWIN)
-        set(EXPAT_COPY libexpat.1.dylib libexpat.dylib)
-    else ()
-        set(EXPAT_COPY libexpat.so.1 libexpat.so)
-    endif ()
-endif (WINDOWS)
+    target_compile_definitions( ll::expat INTERFACE XML_STATIC=1)
+    target_link_libraries( ll::expat  INTERFACE
+            debug ${ARCH_PREBUILT_DIRS_DEBUG}/libexpatd.lib
+            optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libexpat.lib)
+else ()
+    target_link_libraries( ll::expat  INTERFACE
+            debug ${ARCH_PREBUILT_DIRS_DEBUG}/libexpat.a
+            optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libexpat.a)
+endif ()
 target_include_directories( ll::expat SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include )
diff --git a/indra/cmake/FMODSTUDIO.cmake b/indra/cmake/FMODSTUDIO.cmake
deleted file mode 100644
index 9a1cdff6cb..0000000000
--- a/indra/cmake/FMODSTUDIO.cmake
+++ /dev/null
@@ -1,48 +0,0 @@
-# -*- cmake -*-
-
-include_guard()
-
-# FMODSTUDIO can be set when launching the make using the argument -DUSE_FMODSTUDIO:BOOL=ON
-# When building using proprietary binaries though (i.e. having access to LL private servers),
-# we always build with FMODSTUDIO.
-if (INSTALL_PROPRIETARY)
-  set(USE_FMODSTUDIO ON CACHE BOOL "Using FMODSTUDIO sound library.")
-endif (INSTALL_PROPRIETARY)
-
-# ND: To streamline arguments passed, switch from FMODSTUDIO to USE_FMODSTUDIO
-# To not break all old build scripts convert old arguments but warn about it
-if(FMODSTUDIO)
-  message( WARNING "Use of the FMODSTUDIO argument is deprecated, please switch to USE_FMODSTUDIO")
-  set(USE_FMODSTUDIO ${FMODSTUDIO})
-endif()
-
-if (USE_FMODSTUDIO)
-  add_library( ll::fmodstudio INTERFACE IMPORTED )
-  target_compile_definitions( ll::fmodstudio INTERFACE LL_FMODSTUDIO=1)
-
-  if (FMODSTUDIO_LIBRARY AND FMODSTUDIO_INCLUDE_DIR)
-    # If the path have been specified in the arguments, use that
-
-    target_link_libraries(ll::fmodstudio INTERFACE ${FMODSTUDIO_LIBRARY})
-    target_include_directories( ll::fmodstudio SYSTEM INTERFACE  ${FMODSTUDIO_INCLUDE_DIR})
-  else (FMODSTUDIO_LIBRARY AND FMODSTUDIO_INCLUDE_DIR)
-    # If not, we're going to try to get the package listed in autobuild.xml
-    # Note: if you're not using INSTALL_PROPRIETARY, the package URL should be local (file:/// URL)
-    # as accessing the private LL location will fail if you don't have the credential
-    include(Prebuilt)
-    use_prebuilt_binary(fmodstudio)
-    if (WINDOWS)
-      target_link_libraries( ll::fmodstudio INTERFACE  fmod_vc)
-    elseif (DARWIN)
-      #despite files being called libfmod.dylib, we are searching for fmod
-      target_link_libraries( ll::fmodstudio INTERFACE  fmod)
-    elseif (LINUX)
-      target_link_libraries( ll::fmodstudio INTERFACE  fmod)
-    endif (WINDOWS)
-
-    target_include_directories( ll::fmodstudio SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/fmodstudio)
-  endif (FMODSTUDIO_LIBRARY AND FMODSTUDIO_INCLUDE_DIR)
-else()
-  set( USE_FMODSTUDIO "OFF")
-endif ()
-
diff --git a/indra/cmake/FindPipeWire.cmake b/indra/cmake/FindPipeWire.cmake
new file mode 100644
index 0000000000..868acf5ec1
--- /dev/null
+++ b/indra/cmake/FindPipeWire.cmake
@@ -0,0 +1,100 @@
+# cmake-format: off
+# .rst: FindPipeWire
+# -------
+#
+# Try to find PipeWire on a Unix system.
+#
+# This will define the following variables:
+#
+# ``PIPEWIRE_FOUND`` True if (the requested version of) PipeWire is available
+# ``PIPEWIRE_VERSION`` The version of PipeWire ``PIPEWIRE_LIBRARIES`` This can
+# be passed to target_link_libraries() instead of the ``PipeWire::PipeWire``
+# target ``PIPEWIRE_INCLUDE_DIRS`` This should be passed to
+# target_include_directories() if the target is not used for linking
+# ``PIPEWIRE_COMPILE_FLAGS`` This should be passed to target_compile_options()
+# if the target is not used for linking
+#
+# If ``PIPEWIRE_FOUND`` is TRUE, it will also define the following imported
+# target:
+#
+# ``PipeWire::PipeWire`` The PipeWire library
+#
+# In general we recommend using the imported target, as it is easier to use.
+# Bear in mind, however, that if the target is in the link interface of an
+# exported library, it must be made available by the package config file.
+
+# =============================================================================
+# Copyright 2014 Alex Merry <alex.merry@kde.org> Copyright 2014 Martin Gräßlin
+# <mgraesslin@kde.org> Copyright 2018-2020 Jan Grulich <jgrulich@redhat.com>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the copyright notice, this list
+#    of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright notice, this
+#    list of conditions and the following disclaimer in the documentation and/or
+#    other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# =============================================================================
+# cmake-format: on
+
+# Use pkg-config to get the directories and then use these values in the FIND_PATH() and FIND_LIBRARY() calls
+find_package(PkgConfig QUIET)
+
+pkg_search_module(PKG_PIPEWIRE QUIET libpipewire-0.3)
+pkg_search_module(PKG_SPA QUIET libspa-0.2)
+
+set(PIPEWIRE_COMPILE_FLAGS "${PKG_PIPEWIRE_CFLAGS}" "${PKG_SPA_CFLAGS}")
+set(PIPEWIRE_VERSION "${PKG_PIPEWIRE_VERSION}")
+
+find_path(
+  PIPEWIRE_INCLUDE_DIRS
+  NAMES pipewire/pipewire.h
+  HINTS ${PKG_PIPEWIRE_INCLUDE_DIRS} ${PKG_PIPEWIRE_INCLUDE_DIRS}/pipewire-0.3)
+
+find_path(
+  SPA_INCLUDE_DIRS
+  NAMES spa/param/props.h
+  HINTS ${PKG_SPA_INCLUDE_DIRS} ${PKG_SPA_INCLUDE_DIRS}/spa-0.2)
+
+find_library(
+  PIPEWIRE_LIBRARIES
+  NAMES pipewire-0.3
+  HINTS ${PKG_PIPEWIRE_LIBRARY_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  PipeWire
+  FOUND_VAR PIPEWIRE_FOUND
+  REQUIRED_VARS PIPEWIRE_LIBRARIES PIPEWIRE_INCLUDE_DIRS SPA_INCLUDE_DIRS
+  VERSION_VAR PIPEWIRE_VERSION)
+
+if(PIPEWIRE_FOUND AND NOT TARGET PipeWire::PipeWire)
+  add_library(PipeWire::PipeWire UNKNOWN IMPORTED)
+  set_target_properties(
+    PipeWire::PipeWire
+    PROPERTIES IMPORTED_LOCATION "${PIPEWIRE_LIBRARIES}"
+               INTERFACE_COMPILE_OPTIONS "${PIPEWIRE_COMPILE_FLAGS}"
+               INTERFACE_INCLUDE_DIRECTORIES "${PIPEWIRE_INCLUDE_DIRS};${SPA_INCLUDE_DIRS}")
+endif()
+
+mark_as_advanced(PIPEWIRE_LIBRARIES PIPEWIRE_INCLUDE_DIRS)
+
+include(FeatureSummary)
+set_package_properties(
+  PipeWire PROPERTIES
+  URL "https://www.pipewire.org"
+  DESCRIPTION "PipeWire - multimedia processing")
diff --git a/indra/cmake/FreeType.cmake b/indra/cmake/FreeType.cmake
index 77140af641..47ac96f793 100644
--- a/indra/cmake/FreeType.cmake
+++ b/indra/cmake/FreeType.cmake
@@ -1,5 +1,6 @@
 # -*- cmake -*-
 include(Prebuilt)
+include(Linking)
 
 include_guard()
 add_library( ll::freetype INTERFACE IMPORTED )
@@ -7,5 +8,12 @@ add_library( ll::freetype INTERFACE IMPORTED )
 use_system_binary(freetype)
 use_prebuilt_binary(freetype)
 target_include_directories( ll::freetype SYSTEM INTERFACE  ${LIBS_PREBUILT_DIR}/include/freetype2/)
-target_link_libraries( ll::freetype INTERFACE freetype )
+
+if (WINDOWS)
+    target_link_libraries( ll::freetype INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/freetype.lib)
+elseif( LINUX )
+    target_link_libraries( ll::freetype INTERFACE ${LIBS_PREBUILT_DIR}/lib/release/libfreetype.a ${LIBS_PREBUILT_DIR}/lib/release/libpng16.a)
+else()
+    target_link_libraries( ll::freetype INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libfreetype.a)
+endif()
 
diff --git a/indra/cmake/GLIB.cmake b/indra/cmake/GLIB.cmake
new file mode 100644
index 0000000000..f52cbb7f87
--- /dev/null
+++ b/indra/cmake/GLIB.cmake
@@ -0,0 +1,22 @@
+include_guard()
+
+include(Prebuilt)
+
+add_library( ll::glib INTERFACE IMPORTED )
+add_library( ll::glib_headers INTERFACE IMPORTED )
+add_library( ll::gio INTERFACE IMPORTED )
+
+if( LINUX )
+  find_package(PkgConfig REQUIRED)
+  pkg_search_module(GLIB REQUIRED glib-2.0)
+  pkg_search_module(GIO REQUIRED gio-2.0)
+
+  target_include_directories( ll::glib SYSTEM INTERFACE ${GLIB_INCLUDE_DIRS}  )
+  target_link_libraries( ll::glib INTERFACE ${GLIB_LDFLAGS} )
+  target_compile_definitions( ll::glib INTERFACE -DLL_GLIB=1)
+
+  target_include_directories( ll::glib_headers SYSTEM INTERFACE ${GLIB_INCLUDE_DIRS}  )
+  target_compile_definitions( ll::glib_headers INTERFACE -DLL_GLIB=1)
+
+  target_link_libraries( ll::gio INTERFACE ${GIO_LDFLAGS} )
+endif()
diff --git a/indra/cmake/GLM.cmake b/indra/cmake/GLM.cmake
new file mode 100644
index 0000000000..84b155f6c5
--- /dev/null
+++ b/indra/cmake/GLM.cmake
@@ -0,0 +1,7 @@
+# -*- cmake -*-
+include(Prebuilt)
+
+add_library( ll::glm INTERFACE IMPORTED )
+
+use_system_binary( glm )
+use_prebuilt_binary(glm)
diff --git a/indra/cmake/GStreamer10Plugin.cmake b/indra/cmake/GStreamer10Plugin.cmake
new file mode 100644
index 0000000000..da2e33d04d
--- /dev/null
+++ b/indra/cmake/GStreamer10Plugin.cmake
@@ -0,0 +1,27 @@
+# -*- cmake -*-
+
+include_guard()
+
+include(Prebuilt)
+include(GLIB)
+
+add_library( ll::gstreamer10 INTERFACE IMPORTED )
+
+if (LINUX)
+  include(FindPkgConfig)
+
+  pkg_check_modules(GSTREAMER10 REQUIRED gstreamer-1.0)
+  pkg_check_modules(GSTREAMER10_PLUGINS_BASE REQUIRED gstreamer-plugins-base-1.0)
+
+  target_include_directories( ll::gstreamer10 SYSTEM INTERFACE ${GSTREAMER10_INCLUDE_DIRS})
+  target_link_libraries( ll::gstreamer10 INTERFACE  ll::glib_headers)
+
+endif ()
+
+if (GSTREAMER10_FOUND AND GSTREAMER10_PLUGINS_BASE_FOUND)
+  set(GSTREAMER10 ON CACHE BOOL "Build with GStreamer-1.0 streaming media support.")
+endif (GSTREAMER10_FOUND AND GSTREAMER10_PLUGINS_BASE_FOUND)
+
+if (GSTREAMER10)
+  add_definitions(-DLL_GSTREAMER10_ENABLED=1)
+endif (GSTREAMER10)
diff --git a/indra/cmake/GoogleMock.cmake b/indra/cmake/GoogleMock.cmake
deleted file mode 100644
index c3d195c37b..0000000000
--- a/indra/cmake/GoogleMock.cmake
+++ /dev/null
@@ -1,32 +0,0 @@
-# -*- cmake -*-
-include(Prebuilt)
-include(Linking)
-
-include_guard()
-
-add_library( ll::googlemock INTERFACE IMPORTED )
-if(USE_CONAN)
-  target_link_libraries( ll::googlemock INTERFACE  CONAN_PKG::gtest )
-
-  #Not very nice, but for the moment we need this for tut.hpp
-  target_include_directories( ll::googlemock SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include )
-  return()
-endif()
-
-use_prebuilt_binary(googlemock)
-
-target_include_directories( ll::googlemock SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include )
-
-if (LINUX)
-    # VWR-24366: gmock is underlinked, it needs gtest.
-    target_link_libraries( ll::googlemock INTERFACE gmock gtest)
-elseif(WINDOWS)
-    target_link_libraries( ll::googlemock INTERFACE gmock)
-    target_include_directories( ll::googlemock SYSTEM INTERFACE
-            ${LIBS_PREBUILT_DIR}/include
-            ${LIBS_PREBUILT_DIR}/include/gmock)
-elseif(DARWIN)
-    target_link_libraries( ll::googlemock INTERFACE gmock gtest)
-endif(LINUX)
-
-
diff --git a/indra/cmake/Havok.cmake b/indra/cmake/Havok.cmake
index c544440adc..64e33f6c83 100644
--- a/indra/cmake/Havok.cmake
+++ b/indra/cmake/Havok.cmake
@@ -27,26 +27,26 @@ else (LL_DEBUG_HAVOK)
 endif (LL_DEBUG_HAVOK)
 
 set(HAVOK_LIBS
-    hkBase
-    hkCompat
+    hkgpConvexDecomposition
     hkGeometryUtilities
-    hkInternal
     hkSerialize
     hkSceneData
     hkpCollide
     hkpUtilities
     hkpConstraintSolver
     hkpDynamics
-    hkpInternal
-    hkaiInternal
     hkaiPathfinding
     hkaiAiPhysicsBridge
-    hkcdInternal
     hkcdCollide
     hkpVehicle
     hkVisualize
     hkaiVisualize
-    hkgpConvexDecomposition
+    hkaiInternal
+    hkcdInternal
+    hkpInternal
+    hkInternal
+    hkCompat
+    hkBase
 )
 
 unset(HK_DEBUG_LIBRARIES)
@@ -60,16 +60,22 @@ if (DEBUG_PREBUILT)
     # but making it pretty is a lot more work
     message(STATUS "${ARGN}")
   endfunction(DEBUG_MESSAGE)
+  function(DEBUG_EXEC_FUNC)
+    execute_process(COMMAND ${ARGN})
+  endfunction(DEBUG_EXEC_FUNC)
 else (DEBUG_PREBUILT)
   # without DEBUG_PREBUILT, DEBUG_MESSAGE() is a no-op
   function(DEBUG_MESSAGE)
   endfunction(DEBUG_MESSAGE)
+  function(DEBUG_EXEC_FUNC)
+    execute_process(COMMAND ${ARGN} OUTPUT_QUIET)
+  endfunction(DEBUG_EXEC_FUNC)
 endif (DEBUG_PREBUILT)
 
 # DEBUG_EXEC() reports each execute_process() before invoking
 function(DEBUG_EXEC)
   DEBUG_MESSAGE(${ARGN})
-  execute_process(COMMAND ${ARGN})
+  DEBUG_EXEC_FUNC(${ARGN})
 endfunction(DEBUG_EXEC)
 
 # *TODO: Figure out why we need to extract like this...
@@ -79,9 +85,7 @@ foreach(HAVOK_LIB ${HAVOK_LIBS})
   find_library(HAVOK_RELWITHDEBINFO_LIB_${HAVOK_LIB} ${HAVOK_LIB} PATHS ${HAVOK_RELWITHDEBINFO_LIBRARY_PATH})
 
   if(LINUX)
-    set(debug_dir "${HAVOK_DEBUG_LIBRARY_PATH}/${HAVOK_LIB}")
     set(release_dir "${HAVOK_RELEASE_LIBRARY_PATH}/${HAVOK_LIB}")
-    set(relwithdebinfo_dir "${HAVOK_RELWITHDEBINFO_LIBRARY_PATH}/${HAVOK_LIB}")
 
     # Try to avoid extracting havok library each time we run cmake.
     if("${havok_${HAVOK_LIB}_extracted}" STREQUAL "" AND EXISTS "${PREBUILD_TRACKING_DIR}/havok_${HAVOK_LIB}_extracted")
@@ -92,8 +96,8 @@ foreach(HAVOK_LIB ${HAVOK_LIBS})
     if(${PREBUILD_TRACKING_DIR}/havok_source_installed IS_NEWER_THAN ${PREBUILD_TRACKING_DIR}/havok_${HAVOK_LIB}_extracted OR NOT ${havok_${HAVOK_LIB}_extracted} EQUAL 0)
       DEBUG_MESSAGE("Extracting ${HAVOK_LIB}...")
 
-      foreach(lib ${debug_dir} ${release_dir} ${relwithdebinfo_dir})
-        DEBUG_EXEC("mkdir" ${lib})
+      foreach(lib ${release_dir})
+        DEBUG_EXEC("mkdir" "-p" ${lib})
         DEBUG_EXEC("ar" "-xv" "../lib${HAVOK_LIB}.a"
           WORKING_DIRECTORY ${lib})
       endforeach(lib)
@@ -104,17 +108,12 @@ foreach(HAVOK_LIB ${HAVOK_LIBS})
 
     endif()
 
-    file(GLOB extracted_debug "${debug_dir}/*.o")
     file(GLOB extracted_release "${release_dir}/*.o")
-    file(GLOB extracted_relwithdebinfo "${relwithdebinfo_dir}/*.o")
-
-    DEBUG_MESSAGE("extracted_debug ${debug_dir}/*.o")
     DEBUG_MESSAGE("extracted_release ${release_dir}/*.o")
-    DEBUG_MESSAGE("extracted_relwithdebinfo ${relwithdebinfo_dir}/*.o")
 
-    list(APPEND HK_DEBUG_LIBRARIES ${extracted_debug})
+    list(APPEND HK_DEBUG_LIBRARIES ${extracted_release})
     list(APPEND HK_RELEASE_LIBRARIES ${extracted_release})
-    list(APPEND HK_RELWITHDEBINFO_LIBRARIES ${extracted_relwithdebinfo})
+    list(APPEND HK_RELWITHDEBINFO_LIBRARIES ${extracted_release})
   else(LINUX)
     # Win32
     list(APPEND HK_DEBUG_LIBRARIES   ${HAVOK_DEBUG_LIB_${HAVOK_LIB}})
diff --git a/indra/cmake/Hunspell.cmake b/indra/cmake/Hunspell.cmake
index bb037c0237..129679febd 100644
--- a/indra/cmake/Hunspell.cmake
+++ b/indra/cmake/Hunspell.cmake
@@ -1,4 +1,5 @@
 # -*- cmake -*-
+include(Linking)
 include(Prebuilt)
 
 include_guard()
@@ -8,10 +9,16 @@ add_library( ll::hunspell INTERFACE IMPORTED )
 use_system_binary(hunspell)
 use_prebuilt_binary(libhunspell)
 if (WINDOWS)
-  target_link_libraries( ll::hunspell INTERFACE libhunspell)
+    target_compile_definitions( ll::hunspell INTERFACE HUNSPELL_STATIC=1)
+    target_link_libraries( ll::hunspell INTERFACE
+        debug ${ARCH_PREBUILT_DIRS_DEBUG}/libhunspell.lib
+        optimized ${ARCH_PREBUILT_DIRS_RELEASE}/libhunspell.lib
+        )
 elseif(DARWIN)
-  target_link_libraries( ll::hunspell INTERFACE hunspell-1.3)
+    target_link_libraries( ll::hunspell INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libhunspell-1.7.a
+        )
 elseif(LINUX)
-  target_link_libraries( ll::hunspell INTERFACE hunspell-1.3)
+    target_link_libraries( ll::hunspell INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libhunspell-1.7.a
+        )
 endif()
 target_include_directories( ll::hunspell SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/hunspell)
diff --git a/indra/cmake/JPEG.cmake b/indra/cmake/JPEG.cmake
index 252d7852d4..ade5a070cc 100644
--- a/indra/cmake/JPEG.cmake
+++ b/indra/cmake/JPEG.cmake
@@ -7,12 +7,14 @@ include_guard()
 add_library( ll::libjpeg INTERFACE IMPORTED )
 
 use_system_binary(libjpeg)
-use_prebuilt_binary(jpeglib)
+use_prebuilt_binary(libjpeg-turbo)
 if (LINUX)
-  target_link_libraries( ll::libjpeg INTERFACE jpeg)
+  target_link_libraries( ll::libjpeg INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libjpeg.a)
 elseif (DARWIN)
-  target_link_libraries( ll::libjpeg INTERFACE jpeg)
+  target_link_libraries( ll::libjpeg INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libjpeg.a)
 elseif (WINDOWS)
-  target_link_libraries( ll::libjpeg INTERFACE jpeglib)
+    target_link_libraries( ll::libjpeg INTERFACE
+      debug ${ARCH_PREBUILT_DIRS_DEBUG}/jpeg.lib
+      optimized ${ARCH_PREBUILT_DIRS_RELEASE}/jpeg.lib)
 endif (LINUX)
 target_include_directories( ll::libjpeg SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
diff --git a/indra/cmake/JsonCpp.cmake b/indra/cmake/JsonCpp.cmake
deleted file mode 100644
index 17f8e47a97..0000000000
--- a/indra/cmake/JsonCpp.cmake
+++ /dev/null
@@ -1,17 +0,0 @@
-# -*- cmake -*-
-
-include(Prebuilt)
-include_guard()
-add_library( ll::jsoncpp INTERFACE IMPORTED )
-
-use_system_binary(jsoncpp)
-
-use_prebuilt_binary(jsoncpp)
-if (WINDOWS)
-  target_link_libraries( ll::jsoncpp INTERFACE json_libmd.lib )
-elseif (DARWIN)
-  target_link_libraries( ll::jsoncpp INTERFACE libjson_darwin_libmt.a )
-elseif (LINUX)
-  target_link_libraries( ll::jsoncpp INTERFACE libjson_linux-gcc-4.1.3_libmt.a )
-endif (WINDOWS)
-target_include_directories( ll::jsoncpp SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
diff --git a/indra/cmake/LLAddBuildTest.cmake b/indra/cmake/LLAddBuildTest.cmake
index 2172b56da2..5d96a4398f 100644
--- a/indra/cmake/LLAddBuildTest.cmake
+++ b/indra/cmake/LLAddBuildTest.cmake
@@ -1,7 +1,13 @@
 # -*- cmake -*-
+
+include_guard()
+
+if( NOT LL_TESTS )
+  return()
+endif()
+
 include(00-Common)
 include(LLTestCommand)
-include(GoogleMock)
 include(bugsplat)
 include(Tut)
 
@@ -19,10 +25,6 @@ MACRO(LL_ADD_PROJECT_UNIT_TESTS project sources)
   #
   # More info and examples at: https://wiki.secondlife.com/wiki/How_to_add_unit_tests_to_indra_code
 
-  # This here looks weird, but is needed. It will inject GoogleMock into projects that forgot to include `this` (LLAddBuildTest.cmake)
-  # But through some other means have access to this macro
-  include(GoogleMock)
-
   if(LL_TEST_VERBOSE)
     message("LL_ADD_PROJECT_UNIT_TESTS UNITTEST_PROJECT_${project} sources: ${sources}")
   endif()
@@ -41,7 +43,6 @@ MACRO(LL_ADD_PROJECT_UNIT_TESTS project sources)
 
   set(alltest_LIBRARIES
           llcommon
-          ll::googlemock
           )
   if(NOT "${project}" STREQUAL "llmath")
     # add llmath as a dep unless the tested module *is* llmath!
@@ -204,7 +205,6 @@ FUNCTION(LL_ADD_INTEGRATION_TEST
 
   set(libraries
           ${library_dependencies}
-          ll::googlemock
           )
 
   # Add test executable build target
diff --git a/indra/cmake/LLCommon.cmake b/indra/cmake/LLCommon.cmake
index 869d5805f2..dd43ca4916 100644
--- a/indra/cmake/LLCommon.cmake
+++ b/indra/cmake/LLCommon.cmake
@@ -6,6 +6,3 @@ include(EXPAT)
 include(Tracy)
 include(xxHash)
 include(ZLIBNG)
-include(JsonCpp)
-
-include(XmlRpcEpi)
diff --git a/indra/cmake/LLPrimitive.cmake b/indra/cmake/LLPrimitive.cmake
index 735f5e8052..d0a52ffb63 100644
--- a/indra/cmake/LLPrimitive.cmake
+++ b/indra/cmake/LLPrimitive.cmake
@@ -2,11 +2,11 @@
 
 # these should be moved to their own cmake file
 include(Prebuilt)
+include(Linking)
 include(Boost)
 
 include_guard()
 
-add_library( ll::pcre INTERFACE IMPORTED )
 add_library( ll::minizip-ng INTERFACE IMPORTED )
 add_library( ll::libxml INTERFACE IMPORTED )
 add_library( ll::colladadom INTERFACE IMPORTED )
@@ -22,21 +22,18 @@ use_system_binary( colladadom )
 
 use_prebuilt_binary(colladadom)
 use_prebuilt_binary(minizip-ng) # needed for colladadom
-use_prebuilt_binary(pcre)
 use_prebuilt_binary(libxml2)
 
-target_link_libraries( ll::pcre INTERFACE pcrecpp pcre )
-
 if (WINDOWS)
-    target_link_libraries( ll::minizip-ng INTERFACE libminizip )
+    target_link_libraries( ll::minizip-ng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/minizip.lib )
 else()
-    target_link_libraries( ll::minizip-ng INTERFACE minizip )
+    target_link_libraries( ll::minizip-ng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libminizip.a )
 endif()
 
 if (WINDOWS)
-    target_link_libraries( ll::libxml INTERFACE libxml2_a)
+    target_link_libraries( ll::libxml INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libxml2.lib Bcrypt.lib)
 else()
-    target_link_libraries( ll::libxml INTERFACE xml2)
+    target_link_libraries( ll::libxml INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libxml2.a)
 endif()
 
 target_include_directories( ll::colladadom SYSTEM INTERFACE
@@ -44,9 +41,9 @@ target_include_directories( ll::colladadom SYSTEM INTERFACE
         ${LIBS_PREBUILT_DIR}/include/collada/1.4
         )
 if (WINDOWS)
-    target_link_libraries(ll::colladadom INTERFACE libcollada14dom23-s ll::libxml ll::minizip-ng )
+    target_link_libraries(ll::colladadom INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libcollada14dom23-s.lib ll::libxml ll::minizip-ng )
 elseif (DARWIN)
-    target_link_libraries(ll::colladadom INTERFACE collada14dom ll::libxml ll::minizip-ng)
+    target_link_libraries(ll::colladadom INTERFACE collada14dom ll::boost ll::libxml ll::minizip-ng)
 elseif (LINUX)
-    target_link_libraries(ll::colladadom INTERFACE collada14dom ll::libxml ll::minizip-ng)
+    target_link_libraries(ll::colladadom INTERFACE collada14dom ll::boost ll::libxml ll::minizip-ng)
 endif()
diff --git a/indra/cmake/LLWindow.cmake b/indra/cmake/LLWindow.cmake
index 2e1b601b79..a5791f1bef 100644
--- a/indra/cmake/LLWindow.cmake
+++ b/indra/cmake/LLWindow.cmake
@@ -3,20 +3,11 @@
 include(Variables)
 include(GLEXT)
 include(Prebuilt)
+include(SDL2)
 
 include_guard()
-add_library( ll::SDL INTERFACE IMPORTED )
-
 
 if (LINUX)
-  #Must come first as use_system_binary can exit this file early
-  target_compile_definitions( ll::SDL INTERFACE LL_SDL=1)
-
-  use_system_binary(SDL)
-  use_prebuilt_binary(SDL)
-
-  target_include_directories( ll::SDL SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
-  target_link_libraries( ll::SDL INTERFACE SDL directfb fusion direct X11)
+  # linux uses SDL2 for window and keyboard
+  target_compile_definitions( ll::SDL2 INTERFACE LL_USE_SDL_KEYBOARD=1 )
 endif (LINUX)
-
-
diff --git a/indra/cmake/Linker.cmake b/indra/cmake/Linker.cmake
new file mode 100644
index 0000000000..8016842192
--- /dev/null
+++ b/indra/cmake/Linker.cmake
@@ -0,0 +1,11 @@
+include_guard(GLOBAL)
+
+if( LINK_WITH_MOLD )
+  find_program(MOLD_BIN mold)
+  if(MOLD_BIN)
+    message(STATUS "Mold linker found: ${MOLD_BIN}. Enabling mold as active linker.")
+    add_link_options("-fuse-ld=${MOLD_BIN}")
+  else()
+    message(STATUS "Mold linker not found. Using default linker.")
+  endif()
+endif()
diff --git a/indra/cmake/Linking.cmake b/indra/cmake/Linking.cmake
index 0ab30d0800..2bdf0a8aa1 100644
--- a/indra/cmake/Linking.cmake
+++ b/indra/cmake/Linking.cmake
@@ -7,6 +7,7 @@ set(ARCH_PREBUILT_DIRS ${AUTOBUILD_INSTALL_DIR}/lib)
 set(ARCH_PREBUILT_DIRS_PLUGINS ${AUTOBUILD_INSTALL_DIR}/plugins)
 set(ARCH_PREBUILT_DIRS_RELEASE ${AUTOBUILD_INSTALL_DIR}/lib/release)
 set(ARCH_PREBUILT_DIRS_DEBUG ${AUTOBUILD_INSTALL_DIR}/lib/debug)
+
 if (WINDOWS OR DARWIN )
   # Kludge for older cmake versions, 3.20+ is needed to use a genex in add_custom_command( OUTPUT <var> ... )
   # Using this will work okay-ish, as Debug is not supported anyway. But for property multi config and also
@@ -19,6 +20,7 @@ if (WINDOWS OR DARWIN )
     endif()
   else()
     set(SHARED_LIB_STAGING_DIR ${CMAKE_BINARY_DIR}/sharedlibs/$<IF:$<BOOL:${LL_GENERATOR_IS_MULTI_CONFIG}>,$<CONFIG>,>)
+    set(SYMBOLS_STAGING_DIR ${CMAKE_BINARY_DIR}/symbols/$<IF:$<BOOL:${LL_GENERATOR_IS_MULTI_CONFIG}>,$<CONFIG>,>/${VIEWER_CHANNEL})
   endif()
 
   if( DARWIN )
diff --git a/indra/cmake/Lualibs.cmake b/indra/cmake/Lualibs.cmake
new file mode 100644
index 0000000000..d66305a8e5
--- /dev/null
+++ b/indra/cmake/Lualibs.cmake
@@ -0,0 +1,29 @@
+# -*- cmake -*-
+
+include_guard()
+
+include(Prebuilt)
+
+add_library( ll::lualibs INTERFACE IMPORTED )
+
+use_system_binary( lualibs )
+
+use_prebuilt_binary(luau)
+
+target_include_directories( ll::lualibs SYSTEM INTERFACE
+                            ${LIBS_PREBUILT_DIR}/include
+)
+
+if (WINDOWS)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/Luau.Ast.lib)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/Luau.CodeGen.lib)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/Luau.Compiler.lib)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/Luau.Config.lib)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/Luau.VM.lib)
+else ()
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libLuau.CodeGen.a)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libLuau.Compiler.a)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libLuau.Config.a)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libLuau.VM.a)
+  target_link_libraries(ll::lualibs INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libLuau.Ast.a)
+endif ()
diff --git a/indra/cmake/Meshoptimizer.cmake b/indra/cmake/Meshoptimizer.cmake
index fd144d2b97..6983a5895a 100644
--- a/indra/cmake/Meshoptimizer.cmake
+++ b/indra/cmake/Meshoptimizer.cmake
@@ -12,7 +12,7 @@ use_prebuilt_binary(meshoptimizer)
 if (WINDOWS)
   target_link_libraries( ll::meshoptimizer INTERFACE meshoptimizer.lib)
 elseif (LINUX)
-  target_link_libraries( ll::meshoptimizer INTERFACE meshoptimizer.o)
+  target_link_libraries( ll::meshoptimizer INTERFACE libmeshoptimizer.a)
 elseif (DARWIN)
   target_link_libraries( ll::meshoptimizer INTERFACE libmeshoptimizer.a)
 endif (WINDOWS)
diff --git a/indra/cmake/NDOF.cmake b/indra/cmake/NDOF.cmake
index b88fbccf2a..db9c8b1780 100644
--- a/indra/cmake/NDOF.cmake
+++ b/indra/cmake/NDOF.cmake
@@ -19,6 +19,6 @@ if (NDOF)
     target_link_libraries( ll::ndof INTERFACE ndofdev)
   endif (WINDOWS)
   target_compile_definitions( ll::ndof INTERFACE LIB_NDOF=1)
+else()
+  add_compile_options(-ULIB_NDOF)
 endif (NDOF)
-
-
diff --git a/indra/cmake/NGHTTP2.cmake b/indra/cmake/NGHTTP2.cmake
index 6396a5bd01..7b2aa5971f 100644
--- a/indra/cmake/NGHTTP2.cmake
+++ b/indra/cmake/NGHTTP2.cmake
@@ -8,9 +8,7 @@ use_system_binary(nghttp2)
 use_prebuilt_binary(nghttp2)
 if (WINDOWS)
   target_link_libraries( ll::nghttp2 INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/nghttp2.lib)
-elseif (DARWIN)
-  target_link_libraries( ll::nghttp2 INTERFACE libnghttp2.dylib)
-else (WINDOWS)
-  target_link_libraries( ll::nghttp2 INTERFACE libnghttp2.a )
-endif (WINDOWS)
+else ()
+  target_link_libraries( ll::nghttp2 INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libnghttp2.a)
+endif ()
 target_include_directories( ll::nghttp2 SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/nghttp2)
diff --git a/indra/cmake/OPENAL.cmake b/indra/cmake/OPENAL.cmake
index 0b6a7c2853..355907bcf5 100644
--- a/indra/cmake/OPENAL.cmake
+++ b/indra/cmake/OPENAL.cmake
@@ -4,11 +4,7 @@ include(Prebuilt)
 
 include_guard()
 
-# ND: Turn this off by default, the openal code in the viewer isn't very well maintained, seems
-# to have memory leaks, has no option to play music streams
-# It probably makes sense to to completely remove it
-
-set(USE_OPENAL OFF CACHE BOOL "Enable OpenAL")
+set(USE_OPENAL ON CACHE BOOL "Enable OpenAL")
 # ND: To streamline arguments passed, switch from OPENAL to USE_OPENAL
 # To not break all old build scripts convert old arguments but warn about it
 if(OPENAL)
@@ -33,6 +29,9 @@ if (USE_OPENAL)
             alut
             )
   else()
-    message(FATAL_ERROR "OpenAL is not available for this platform")
+    target_link_libraries( ll::openal INTERFACE
+            openal
+            alut
+            )
   endif()
 endif ()
diff --git a/indra/cmake/OpenSSL.cmake b/indra/cmake/OpenSSL.cmake
index 3387c74f45..67a84e14af 100644
--- a/indra/cmake/OpenSSL.cmake
+++ b/indra/cmake/OpenSSL.cmake
@@ -1,5 +1,6 @@
 # -*- cmake -*-
 include(Prebuilt)
+include(Linking)
 
 include_guard()
 add_library( ll::openssl INTERFACE IMPORTED )
@@ -7,9 +8,9 @@ add_library( ll::openssl INTERFACE IMPORTED )
 use_system_binary(openssl)
 use_prebuilt_binary(openssl)
 if (WINDOWS)
-  target_link_libraries(ll::openssl INTERFACE libssl libcrypto)
+  target_link_libraries(ll::openssl INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libssl.lib ${ARCH_PREBUILT_DIRS_RELEASE}/libcrypto.lib Crypt32.lib)
 elseif (LINUX)
-  target_link_libraries(ll::openssl INTERFACE ssl crypto dl)
+  target_link_libraries(ll::openssl INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libssl.a ${ARCH_PREBUILT_DIRS_RELEASE}/libcrypto.a dl)
 else()
   target_link_libraries(ll::openssl INTERFACE ssl crypto)
 endif (WINDOWS)
diff --git a/indra/cmake/OpenXR.cmake b/indra/cmake/OpenXR.cmake
new file mode 100644
index 0000000000..2cc862b927
--- /dev/null
+++ b/indra/cmake/OpenXR.cmake
@@ -0,0 +1,22 @@
+# -*- cmake -*-
+
+include(Prebuilt)
+
+include_guard()
+add_library( ll::openxr INTERFACE IMPORTED )
+
+if(USE_CONAN )
+  target_link_libraries( ll::openxr INTERFACE CONAN_PKG::openxr )
+  return()
+endif()
+
+use_prebuilt_binary(openxr)
+if (WINDOWS)
+  target_link_libraries( ll::openxr INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/openxr_loader.lib )
+else()
+  target_link_libraries( ll::openxr INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libopenxr_loader.a )
+endif (WINDOWS)
+
+if( NOT LINUX )
+  target_include_directories( ll::openxr SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
+endif()
diff --git a/indra/cmake/PNG.cmake b/indra/cmake/PNG.cmake
index 044262bc8d..e5893e9a20 100644
--- a/indra/cmake/PNG.cmake
+++ b/indra/cmake/PNG.cmake
@@ -7,8 +7,8 @@ add_library( ll::libpng INTERFACE IMPORTED )
 use_system_binary(libpng)
 use_prebuilt_binary(libpng)
 if (WINDOWS)
-  target_link_libraries(ll::libpng INTERFACE libpng16)
+  target_link_libraries(ll::libpng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libpng16.lib)
 else()
-  target_link_libraries(ll::libpng INTERFACE png16 )
+  target_link_libraries(ll::libpng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libpng16.a)
 endif()
 target_include_directories( ll::libpng SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/libpng16)
diff --git a/indra/cmake/Prebuilt.cmake b/indra/cmake/Prebuilt.cmake
index 634cc15c21..c040090ea3 100644
--- a/indra/cmake/Prebuilt.cmake
+++ b/indra/cmake/Prebuilt.cmake
@@ -40,8 +40,11 @@ macro (use_prebuilt_binary _binary)
         --install-dir=${AUTOBUILD_INSTALL_DIR}
         ${_binary} ")
         endif(DEBUG_PREBUILT)
+        message(STATUS "Installing ${_binary}...")
         execute_process(COMMAND "${AUTOBUILD_EXECUTABLE}"
                 install
+                -A${ADDRESS_SIZE}
+                --skip-source-environment
                 --install-dir=${AUTOBUILD_INSTALL_DIR}
                 ${_binary}
                 WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
diff --git a/indra/cmake/SDL2.cmake b/indra/cmake/SDL2.cmake
new file mode 100644
index 0000000000..87195ed108
--- /dev/null
+++ b/indra/cmake/SDL2.cmake
@@ -0,0 +1,22 @@
+# -*- cmake -*-
+cmake_minimum_required( VERSION 3.13 FATAL_ERROR )
+
+include(Linking)
+include( Prebuilt )
+include_guard()
+
+add_library( ll::SDL2 INTERFACE IMPORTED )
+
+use_system_binary( SDL2 )
+use_prebuilt_binary( SDL2 )
+
+find_library( SDL2_LIBRARY
+    NAMES SDL2
+    PATHS "${LIBS_PREBUILT_DIR}/lib/release")
+if ( "${SDL2_LIBRARY}" STREQUAL "SDL2_LIBRARY-NOTFOUND" )
+    message( FATAL_ERROR "unable to find SDL2_LIBRARY" )
+endif()
+
+target_link_libraries( ll::SDL2 INTERFACE "${SDL2_LIBRARY}" )
+target_include_directories( ll::SDL2 SYSTEM INTERFACE "${LIBS_PREBUILT_DIR}/include" )
+
diff --git a/indra/cmake/TinyEXR.cmake b/indra/cmake/TinyEXR.cmake
index e6d142d19d..e741c07f6e 100644
--- a/indra/cmake/TinyEXR.cmake
+++ b/indra/cmake/TinyEXR.cmake
@@ -3,5 +3,5 @@ include(Prebuilt)
 
 use_prebuilt_binary(tinyexr)
 
-set(TINYEXR_INCLUDE_DIR ${LIBS_PREBUILT_DIR}/include/tinyexr) 
+set(TINYEXR_INCLUDE_DIR ${LIBS_PREBUILT_DIR}/include/tinyexr)
 
diff --git a/indra/cmake/Tracy.cmake b/indra/cmake/Tracy.cmake
index 32c02edb93..9eee9eb57f 100644
--- a/indra/cmake/Tracy.cmake
+++ b/indra/cmake/Tracy.cmake
@@ -4,14 +4,42 @@ include(Prebuilt)
 include_guard()
 add_library( ll::tracy INTERFACE IMPORTED )
 
-set(USE_TRACY OFF CACHE BOOL "Use Tracy profiler.")
+# default Tracy profiling on for test builds, but off for all others
+string(TOLOWER ${VIEWER_CHANNEL} channel_lower)
+if(channel_lower MATCHES "^second life test")
+  option(USE_TRACY "Use Tracy profiler." ON)
+else()
+    option(USE_TRACY "Use Tracy profiler." OFF)
+endif()
+
+if (LINUX)
+  # tracy currently conflicts with llcommon/stdtypes.h on linux.  keep it disabled until we fix it
+  set(USE_TRACY OFF)
+endif(LINUX)
 
 if (USE_TRACY)
+  option(USE_TRACY_ON_DEMAND "Use on-demand Tracy profiling." ON)
+  option(USE_TRACY_LOCAL_ONLY "Disallow remote Tracy profiling." OFF)
+
   use_system_binary(tracy)
   use_prebuilt_binary(tracy)
 
   target_include_directories( ll::tracy SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/tracy)
-  target_link_libraries( ll::tracy INTERFACE TracyClient )
+
+  target_compile_definitions(ll::tracy INTERFACE -DTRACY_ENABLE=1 -DTRACY_ONLY_IPV4=1)
+
+  if (USE_TRACY_ON_DEMAND)
+    target_compile_definitions(ll::tracy INTERFACE -DTRACY_ON_DEMAND=1)
+  endif ()
+
+  if (USE_TRACY_LOCAL_ONLY)
+    target_compile_definitions(ll::tracy INTERFACE -DTRACY_NO_BROADCAST=1 -DTRACY_ONLY_LOCALHOST=1)
+  endif ()
+
+  # GHA runners don't always provide invariant TSC support, but always build with LL_TESTS enabled
+  if (DARWIN AND LL_TESTS)
+    target_compile_definitions(ll::tracy INTERFACE -DTRACY_TIMER_FALLBACK=1)
+  endif ()
 
   # See: indra/llcommon/llprofiler.h
   add_compile_definitions(LL_PROFILER_CONFIGURATION=3)
diff --git a/indra/cmake/UI.cmake b/indra/cmake/UI.cmake
index 8f135676d6..595f394af4 100644
--- a/indra/cmake/UI.cmake
+++ b/indra/cmake/UI.cmake
@@ -1,35 +1,41 @@
 # -*- cmake -*-
 include(Prebuilt)
 include(FreeType)
+include(GLIB)
 
 add_library( ll::uilibraries INTERFACE IMPORTED )
 
 if (LINUX)
-  target_compile_definitions(ll::uilibraries INTERFACE LL_GTK=1 LL_X11=1 )
+  target_compile_definitions(ll::uilibraries INTERFACE LL_X11=1 )
 
   if( USE_CONAN )
-    target_link_libraries( ll::uilibraries INTERFACE CONAN_PKG::gtk )
     return()
   endif()
-  use_prebuilt_binary(gtk-atk-pango-glib)
+
+  include(FindPkgConfig)
+  pkg_check_modules(WAYLAND_CLIENT wayland-client)
+
+  if( WAYLAND_CLIENT_FOUND )
+      target_compile_definitions( ll::uilibraries INTERFACE LL_WAYLAND=1)
+  else()
+      message("pkgconfig could not find wayland client, compiling without full wayland support")
+  endif()
 
   target_link_libraries( ll::uilibraries INTERFACE
-          atk-1.0
-          gdk-x11-2.0
-          gdk_pixbuf-2.0
-          Xinerama
-          glib-2.0
-          gmodule-2.0
-          gobject-2.0
-          gthread-2.0
-          gtk-x11-2.0
-          pango-1.0
-          pangoft2-1.0
-          pangox-1.0
-          pangoxft-1.0
+          Xrender
+          Xcursor
+          Xfixes
+          Xext
+          Xft
           Xinerama
+          X11
+          ll::fontconfig
           ll::freetype
-          )
+          ll::SDL2
+          ll::glib
+          ll::gio
+  )
+
 endif (LINUX)
 if( WINDOWS )
   target_link_libraries( ll::uilibraries INTERFACE
@@ -51,4 +57,3 @@ endif()
 target_include_directories( ll::uilibraries SYSTEM INTERFACE
         ${LIBS_PREBUILT_DIR}/include
         )
-
diff --git a/indra/cmake/URIPARSER.cmake b/indra/cmake/URIPARSER.cmake
deleted file mode 100644
index 6c33ff70e1..0000000000
--- a/indra/cmake/URIPARSER.cmake
+++ /dev/null
@@ -1,19 +0,0 @@
-# -*- cmake -*-
-
-include_guard()
-
-include(Prebuilt)
-
-add_library( ll::uriparser INTERFACE IMPORTED )
-
-use_system_binary( uriparser )
-
-use_prebuilt_binary(uriparser)
-if (WINDOWS)
-  target_link_libraries( ll::uriparser INTERFACE uriparser)
-elseif (LINUX)
-  target_link_libraries( ll::uriparser INTERFACE uriparser)
-elseif (DARWIN)
-  target_link_libraries( ll::uriparser INTERFACE liburiparser.dylib)
-endif (WINDOWS)
-target_include_directories( ll::uriparser SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include/uriparser)
diff --git a/indra/cmake/Variables.cmake b/indra/cmake/Variables.cmake
index 59725ecc65..5dfad25577 100644
--- a/indra/cmake/Variables.cmake
+++ b/indra/cmake/Variables.cmake
@@ -5,7 +5,7 @@
 #
 # Platform variables:
 #
-#   DARWIN  - Mac OS X
+#   DARWIN  - macOS
 #   LINUX   - Linux
 #   WINDOWS - Windows
 
@@ -127,8 +127,6 @@ if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     set(CMAKE_SYSTEM_LIBRARY_PATH /usr/lib/${DPKG_ARCH} /usr/local/lib/${DPKG_ARCH} ${CMAKE_SYSTEM_LIBRARY_PATH})
   endif (DPKG_RESULT EQUAL 0)
 
-  include(ConfigurePkgConfig)
-
   if (INSTALL_PROPRIETARY)
     # Only turn on headless if we can find osmesa libraries.
     include(FindPkgConfig)
diff --git a/indra/cmake/ViewerMiscLibs.cmake b/indra/cmake/ViewerMiscLibs.cmake
index cae68fbc11..2cb11994fc 100644
--- a/indra/cmake/ViewerMiscLibs.cmake
+++ b/indra/cmake/ViewerMiscLibs.cmake
@@ -2,14 +2,10 @@
 include(Prebuilt)
 
 if (LINUX)
-  #use_prebuilt_binary(libuuid)
   add_library( ll::fontconfig INTERFACE IMPORTED )
 
-  if( NOT USE_CONAN )
-    use_prebuilt_binary(fontconfig)
-  else()
-    target_link_libraries( ll::fontconfig INTERFACE CONAN_PKG::fontconfig )
-  endif()
+  find_package(Fontconfig REQUIRED)
+  target_link_libraries( ll::fontconfig INTERFACE  Fontconfig::Fontconfig )
 endif (LINUX)
 
 if( NOT USE_CONAN )
diff --git a/indra/cmake/WebRTC.cmake b/indra/cmake/WebRTC.cmake
new file mode 100644
index 0000000000..230522a40a
--- /dev/null
+++ b/indra/cmake/WebRTC.cmake
@@ -0,0 +1,32 @@
+# -*- cmake -*-
+include(Linking)
+include(Prebuilt)
+
+include_guard()
+
+add_library( ll::webrtc INTERFACE IMPORTED )
+target_include_directories( ll::webrtc SYSTEM INTERFACE "${LIBS_PREBUILT_DIR}/include/webrtc" "${LIBS_PREBUILT_DIR}/include/webrtc/third_party/abseil-cpp")
+use_prebuilt_binary(webrtc)
+
+if (WINDOWS)
+    target_link_libraries( ll::webrtc INTERFACE webrtc.lib )
+elseif (DARWIN)
+    FIND_LIBRARY(COREAUDIO_LIBRARY CoreAudio)
+    FIND_LIBRARY(COREGRAPHICS_LIBRARY CoreGraphics)
+    FIND_LIBRARY(AUDIOTOOLBOX_LIBRARY AudioToolbox)
+    FIND_LIBRARY(COREFOUNDATION_LIBRARY CoreFoundation)
+    FIND_LIBRARY(COCOA_LIBRARY Cocoa)
+
+    target_link_libraries( ll::webrtc INTERFACE
+        libwebrtc.a
+        ${COREAUDIO_LIBRARY}
+        ${AUDIOTOOLBOX_LIBRARY}
+        ${COREGRAPHICS_LIBRARY}
+        ${COREFOUNDATION_LIBRARY}
+        ${COCOA_LIBRARY}
+    )
+elseif (LINUX)
+    target_link_libraries( ll::webrtc INTERFACE libwebrtc.a X11 )
+endif (WINDOWS)
+
+
diff --git a/indra/cmake/XmlRpcEpi.cmake b/indra/cmake/XmlRpcEpi.cmake
deleted file mode 100644
index 6409f9d6e2..0000000000
--- a/indra/cmake/XmlRpcEpi.cmake
+++ /dev/null
@@ -1,11 +0,0 @@
-# -*- cmake -*-
-include(Prebuilt)
-
-include_guard()
-add_library( ll::xmlrpc-epi INTERFACE IMPORTED )
-
-use_system_binary( xmlrpc-epi )
-
-use_prebuilt_binary(xmlrpc-epi)
-target_link_libraries(ll::xmlrpc-epi INTERFACE xmlrpc-epi )
-target_include_directories( ll::xmlrpc-epi SYSTEM INTERFACE ${LIBS_PREBUILT_DIR}/include)
diff --git a/indra/cmake/ZLIBNG.cmake b/indra/cmake/ZLIBNG.cmake
index 5d99cd9709..d7b920da26 100644
--- a/indra/cmake/ZLIBNG.cmake
+++ b/indra/cmake/ZLIBNG.cmake
@@ -12,9 +12,9 @@ endif()
 
 use_prebuilt_binary(zlib-ng)
 if (WINDOWS)
-  target_link_libraries( ll::zlib-ng INTERFACE zlib )
+  target_link_libraries( ll::zlib-ng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/zlib.lib )
 else()
-  target_link_libraries( ll::zlib-ng INTERFACE z )
+  target_link_libraries( ll::zlib-ng INTERFACE ${ARCH_PREBUILT_DIRS_RELEASE}/libz.a )
 endif (WINDOWS)
 
 if( NOT LINUX )
diff --git a/indra/cmake/bugsplat.cmake b/indra/cmake/bugsplat.cmake
index 509981d72c..0798d4f51f 100644
--- a/indra/cmake/bugsplat.cmake
+++ b/indra/cmake/bugsplat.cmake
@@ -1,13 +1,13 @@
-if (INSTALL_PROPRIETARY)
+if (INSTALL_PROPRIETARY AND NOT LINUX)
     # Note that viewer_manifest.py makes decision based on BUGSPLAT_DB and not USE_BUGSPLAT
     if (BUGSPLAT_DB)
         set(USE_BUGSPLAT ON  CACHE BOOL "Use the BugSplat crash reporting system")
     else (BUGSPLAT_DB)
         set(USE_BUGSPLAT OFF CACHE BOOL "Use the BugSplat crash reporting system")
     endif (BUGSPLAT_DB)
-else (INSTALL_PROPRIETARY)
+else (INSTALL_PROPRIETARY AND NOT LINUX)
     set(USE_BUGSPLAT OFF CACHE BOOL "Use the BugSplat crash reporting system")
-endif (INSTALL_PROPRIETARY)
+endif (INSTALL_PROPRIETARY AND NOT LINUX)
 
 include_guard()
 add_library( ll::bugsplat INTERFACE IMPORTED )
@@ -36,6 +36,6 @@ if (USE_BUGSPLAT)
 
     set_property( TARGET ll::bugsplat APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS LL_BUGSPLAT)
 else()
-    set(BUGSPLAT_DB "" CACHE STRING "BugSplat crash database name")
+    set(BUGSPLAT_DB "" CACHE STRING "BugSplat crash database name" FORCE)
 endif (USE_BUGSPLAT)
 
diff --git a/indra/cmake/run_build_test.py b/indra/cmake/run_build_test.py
index 940a130a50..312d791d67 100755
--- a/indra/cmake/run_build_test.py
+++ b/indra/cmake/run_build_test.py
@@ -122,19 +122,17 @@ def main(command, arguments=[], libpath=[], vars={}):
     # Make sure we see all relevant output *before* child-process output.
     sys.stdout.flush()
     try:
-        return subprocess.call(command_list)
-    except OSError as err:
+        return subprocess.run(command_list).returncode
+    except FileNotFoundError as err:
         # If the caller is trying to execute a test program that doesn't
         # exist, we want to produce a reasonable error message rather than a
         # traceback. This happens when the build is halted by errors, but
         # CMake tries to proceed with testing anyway <eyeroll/>. However, do
         # NOT attempt to handle any error but "doesn't exist."
-        if err.errno != errno.ENOENT:
-            raise
         # In practice, the pathnames into CMake's build tree are so long as to
         # obscure the name of the test program. Just log its basename.
-        log.warn("No such program %s; check for preceding build errors" % \
-                 os.path.basename(command[0]))
+        log.warning("No such program %s; check for preceding build errors" %
+                    os.path.basename(command[0]))
         # What rc should we simulate for missing executable? Windows produces
         # 9009.
         return 9009