5 files changed, 44 insertions, 2 deletions
diff --git a/indra/viewer_components/updater/llupdateinstaller.cpp b/indra/viewer_components/updater/llupdateinstaller.cpp
index 10d5edc6a0..6e69bcf28b 100644
--- a/indra/viewer_components/updater/llupdateinstaller.cpp
+++ b/indra/viewer_components/updater/llupdateinstaller.cpp
@@ -72,8 +72,19 @@ int ll_install_update(std::string const & script, std::string const & updatePath
 	LLProcessLauncher launcher;
 	launcher.setExecutable(actualScriptPath);
 	launcher.addArgument(updatePath);
+	launcher.addArgument(ll_install_failed_marker_path().c_str());
 	int result = launcher.launch();
 	launcher.orphan();
 	
 	return result;
 }
+
+
+std::string const & ll_install_failed_marker_path(void)
+{
+	static std::string path;
+	if(path.empty()) {
+		path = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "SecondLifeInstallFailed.marker");
+	}
+	return path;
+}
diff --git a/indra/viewer_components/updater/llupdateinstaller.h b/indra/viewer_components/updater/llupdateinstaller.h
index 310bfe4348..6ce08ce6fa 100644
--- a/indra/viewer_components/updater/llupdateinstaller.h
+++ b/indra/viewer_components/updater/llupdateinstaller.h
@@ -47,4 +47,11 @@ int ll_install_update(
 					   LLInstallScriptMode mode=LL_COPY_INSTALL_SCRIPT_TO_TEMP); // Run in place or copy to temp?
 
 
+//
+// Returns the path which points to the failed install marker file, should it
+// exist.
+//
+std::string const & ll_install_failed_marker_path(void);
+
+
 #endif
diff --git a/indra/viewer_components/updater/llupdaterservice.cpp b/indra/viewer_components/updater/llupdaterservice.cpp
index 6cc872f2ca..a1ad3e3381 100644
--- a/indra/viewer_components/updater/llupdaterservice.cpp
+++ b/indra/viewer_components/updater/llupdaterservice.cpp
@@ -378,7 +378,19 @@ bool LLUpdaterServiceImpl::onMainLoop(LLSD const & event)
 	{
 		mTimer.stop();
 		LLEventPumps::instance().obtain("mainloop").stopListening(sListenerName);
-		mUpdateChecker.check(mProtocolVersion, mUrl, mPath, mChannel, mVersion);
+
+		// Check for failed install.
+		if(LLFile::isfile(ll_install_failed_marker_path()))
+		{
+			// TODO: notify the user.
+			llinfos << "found marker " << ll_install_failed_marker_path() << llendl;
+			llinfos << "last install attempt failed" << llendl;
+			LLFile::remove(ll_install_failed_marker_path());
+		}
+		else
+		{
+			mUpdateChecker.check(mProtocolVersion, mUrl, mPath, mChannel, mVersion);
+		}
 	} 
 	else 
 	{
diff --git a/indra/viewer_components/updater/scripts/darwin/update_install b/indra/viewer_components/updater/scripts/darwin/update_install
index c061d2818f..b174b3570a 100644..100755
--- a/indra/viewer_components/updater/scripts/darwin/update_install
+++ b/indra/viewer_components/updater/scripts/darwin/update_install
@@ -1,3 +1,9 @@
 #! /bin/bash
 
-open ../Resources/mac-updater.app --args -dmg "$1" -name "Second Life Viewer 2"
+#
+# The first argument contains the path to the installer app.  The second a path
+# to a marker file which should be created if the installer fails.q
+#
+
+open ../Resources/mac-updater.app --args -dmg "$1" -name "Second Life Viewer 2" -marker "$2"
+exit 0
diff --git a/indra/viewer_components/updater/tests/llupdaterservice_test.cpp b/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
index 9b56a04ff6..25fd1b034d 100644
--- a/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
+++ b/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
@@ -106,6 +106,12 @@ int ll_install_update(std::string const &, std::string const &, LLInstallScriptM
 	return 0;
 }
 
+std::string const & ll_install_failed_marker_path()
+{
+	static std::string wubba;
+	return wubba;
+}
+
 /*
 #pragma warning(disable: 4273)
 llus_mock_llifstream::llus_mock_llifstream(const std::string& _Filename,