diff --git a/BuildParams b/BuildParams
index 789c7925bd..a5edfadbd6 100755
--- a/BuildParams
+++ b/BuildParams
@@ -15,7 +15,6 @@ build_Linux_Doxygen = true
 
 # Need viewer-build-variables as well as other shared repositories
 buildscripts_shared_more_NAMEs="build_variables"
-build_variables_repostory_url = "https://bitbucket.org/lindenlab/viewer-build-variables"
 
 ################################################################
 ####      Examples of how to set the viewer_channel         ####
diff --git a/autobuild.xml b/autobuild.xml
index 00f2788da6..42930e38e0 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -1062,9 +1062,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>0b76c9551ae3ef1ede9a9abee865f55b</string>
+              <string>d6e7100e6b70fb964e8edd92721853a9</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/568/1209/google_breakpad-1413.500560-darwin64-500560.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1487/3312/google_breakpad-1413.501475-darwin64-501475.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -1086,9 +1086,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>066ce05521a0e1cff2da8aeecfefd7f1</string>
+              <string>438d220b9572ec037edfc157f5f5424b</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/567/1217/google_breakpad-1413.500560-linux64-500560.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1486/3327/google_breakpad-1413.501475-linux64-501475.tar.bz2</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -1098,9 +1098,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>c6a4497fbf3af4e06f74d529f4f084b0</string>
+              <string>45da93800bec583e828453bbe52bd650</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/570/1220/google_breakpad-1413.500560-windows-500560.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1489/3320/google_breakpad-1413.501475-windows-501475.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -1110,16 +1110,16 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>46409efe7425f637a7757c3a578e7baa</string>
+              <string>bd6d5227b776e0a323098d3c157fd03a</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/569/1212/google_breakpad-1413.500560-windows64-500560.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1488/3319/google_breakpad-1413.501475-windows64-501475.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
         </map>
         <key>version</key>
-        <string>1413.500560</string>
+        <string>1413.501475</string>
       </map>
       <key>googlemock</key>
       <map>
@@ -1502,9 +1502,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>ba30bc3d67ef22700b534b15505bf976</string>
+              <string>3564da2ab285a8652d2ee157d1f167e2</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/606/1275/jsoncpp-0.5.0.500597-darwin64-500597.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1478/3283/jsoncpp-0.5.0.501464-darwin64-501464.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -1526,9 +1526,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>a88378cb3019a47f3249243384d3c5da</string>
+              <string>9a658ae561c75e60bd9c0cee56731d21</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/605/1270/jsoncpp-0.5.0.500597-linux64-500597.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1475/3274/jsoncpp-0.5.0.501464-linux64-501464.tar.bz2</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -1538,9 +1538,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>483ba51ff4060d02900adf8b7ca12e32</string>
+              <string>ed25115f3e53e59d4d26e0953c273648</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/608/1281/jsoncpp-0.5.0.500597-windows-500597.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1476/3277/jsoncpp-0.5.0.501464-windows-501464.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -1550,16 +1550,16 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>25694d8f71efba5479e0475cd1bf3c2f</string>
+              <string>b328db840fd28532be39556d130c9439</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/607/1278/jsoncpp-0.5.0.500597-windows64-500597.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1477/3284/jsoncpp-0.5.0.501464-windows64-501464.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
         </map>
         <key>version</key>
-        <string>0.5.0.500597</string>
+        <string>0.5.0.501464</string>
       </map>
       <key>kdu</key>
       <map>
@@ -2087,16 +2087,28 @@
             <key>name</key>
             <string>darwin</string>
           </map>
+          <key>darwin64</key>
+          <map>
+            <key>archive</key>
+            <map>
+              <key>hash</key>
+              <string>9fb85eff4118913543acde89bcb9a9c1</string>
+              <key>url</key>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1512/3413/llceflib-1.6.0.501501-darwin64-501501.tar.bz2</string>
+            </map>
+            <key>name</key>
+            <string>darwin64</string>
+          </map>
           <key>windows</key>
           <map>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>640cd808de734d9a6ca564475d951980</string>
+              <string>9d19271829a372e028dd3c75605ded9c</string>
               <key>hash_algorithm</key>
               <string>md5</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1121/2604/llceflib-1.5.3.501109-windows-501109.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1518/3437/llceflib-1.6.0.501501-windows-501501.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -2106,16 +2118,16 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>f4b75f37ba344db3efeddfafff10f5f9</string>
+              <string>da1835b11be4442f22fef36820ad46ac</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1120/2601/llceflib-1.5.3.501109-windows64-501109.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1517/3434/llceflib-1.6.0.501501-windows64-501501.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
         </map>
         <key>version</key>
-        <string>1.5.3.501109</string>
+        <string>1.6.0.501501</string>
       </map>
       <key>llphysicsextensions_source</key>
       <map>
@@ -2148,9 +2160,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>8d66b068425d2cbc65949c83d7f37d23</string>
+              <string>7ddbd5e4042c8cd4b92f4ec4f008c2de</string>
               <key>url</key>
-              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/486/1031/llphysicsextensions_source-1.0.500392-darwin64-500392.tar.bz2</string>
+              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/1429/3171/llphysicsextensions_source-1.0.501416-darwin64-501416.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -2172,9 +2184,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>20279e8be7f8971c59f0b8f6aa513098</string>
+              <string>e106565f44656db9824a6b7d0f316131</string>
               <key>url</key>
-              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/463/980/llphysicsextensions_source-1.0.500392-linux64-500392.tar.bz2</string>
+              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/1427/3161/llphysicsextensions_source-1.0.501416-linux64-501416.tar.bz2</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -2184,9 +2196,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>0ac91b8fadeebb767d8c7a4ab5272319</string>
+              <string>a5330ca28e7a18df3f54213e6dbb1ea6</string>
               <key>url</key>
-              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/508/1090/llphysicsextensions_source-1.0.500392-windows-500392.tar.bz2</string>
+              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/1433/3191/llphysicsextensions_source-1.0.501416-windows-501416.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -2196,16 +2208,16 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>ec95c627af598b6db5be99cff5559699</string>
+              <string>159bc42e08f1797a613d914d1921cb46</string>
               <key>url</key>
-              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/507/1087/llphysicsextensions_source-1.0.500392-windows64-500392.tar.bz2</string>
+              <string>http://s3-proxy.lindenlab.com/private-builds-secondlife-com/ct2/1432/3186/llphysicsextensions_source-1.0.501416-windows64-501416.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
         </map>
         <key>version</key>
-        <string>1.0.500392</string>
+        <string>1.0.501416</string>
       </map>
       <key>llphysicsextensions_stub</key>
       <map>
@@ -2238,9 +2250,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>c7676595a2b49e41aa3e32bf99e5cf2f</string>
+              <string>b405d183061dec751ee9e3d8ece141ee</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1081/2505/llphysicsextensions_stub-1.0.501069-darwin64-501069.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1428/3166/llphysicsextensions_stub-1.0.501415-darwin64-501415.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -2262,9 +2274,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>430a1c16c2a0f999742411389e6bb50f</string>
+              <string>4581b01a352a66ba6ad62a536b12b8cb</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1080/2500/llphysicsextensions_stub-1.0.501069-linux64-501069.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1426/3156/llphysicsextensions_stub-1.0.501415-linux64-501415.tar.bz2</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -2274,9 +2286,9 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>72b163adfc692d4930fa391043329c88</string>
+              <string>0b0a911847d4784b49ea548ac4fe53d5</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1083/2511/llphysicsextensions_stub-1.0.501069-windows-501069.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1431/3181/llphysicsextensions_stub-1.0.501415-windows-501415.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -2286,16 +2298,16 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>b0a066c3fcee095843d9077ccbc8a75b</string>
+              <string>546c9e9554a6204bb0c3f0c79b7a34cb</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1082/2508/llphysicsextensions_stub-1.0.501069-windows64-501069.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/1430/3176/llphysicsextensions_stub-1.0.501415-windows64-501415.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
         </map>
         <key>version</key>
-        <string>1.0.501069</string>
+        <string>1.0.501415</string>
       </map>
       <key>mesa</key>
       <map>
diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index 6734f9585c..46dd8739bc 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -202,7 +202,7 @@ endif (LINUX)
 
 if (DARWIN)
   add_definitions(-DLL_DARWIN=1)
-  set(CMAKE_CXX_LINK_FLAGS "-Wl,-no_compact_unwind -Wl,-headerpad_max_install_names,-search_paths_first")
+  set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names,-search_paths_first")
   set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_CXX_LINK_FLAGS}")
   set(DARWIN_extra_cstar_flags "-g -Wno-unused-local-typedef -Wno-deprecated-declarations")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${DARWIN_extra_cstar_flags}")
diff --git a/indra/cmake/Copy3rdPartyLibs.cmake b/indra/cmake/Copy3rdPartyLibs.cmake
index 4630246d06..14510d654f 100644
--- a/indra/cmake/Copy3rdPartyLibs.cmake
+++ b/indra/cmake/Copy3rdPartyLibs.cmake
@@ -162,10 +162,8 @@ elseif(DARWIN)
         libaprutil-1.0.dylib
         libaprutil-1.dylib
         libexception_handler.dylib
-        libexpat.1.5.2.dylib
-        libexpat.dylib
+        ${EXPAT_COPY}
         libGLOD.dylib
-        libhunspell-1.3.0.dylib
         libndofdev.dylib
        )
 
@@ -205,8 +203,7 @@ elseif(LINUX)
         libaprutil-1.so.0
         libatk-1.0.so
         libdb-5.1.so
-        libexpat.so
-        libexpat.so.1
+        ${EXPAT_COPY}
         libfreetype.so.6.6.2
         libfreetype.so.6
         libGLOD.so
diff --git a/indra/cmake/EXPAT.cmake b/indra/cmake/EXPAT.cmake
index c1155531ff..cddc71b227 100644
--- a/indra/cmake/EXPAT.cmake
+++ b/indra/cmake/EXPAT.cmake
@@ -10,8 +10,14 @@ else (USESYSTEMLIBS)
     use_prebuilt_binary(expat)
     if (WINDOWS)
         set(EXPAT_LIBRARIES libexpatMT)
+        set(EXPAT_COPY libexpatMT.dll)
     else (WINDOWS)
         set(EXPAT_LIBRARIES expat)
+        if (DARWIN)
+            set(EXPAT_COPY libexpat.1.dylib libexpat.dylib)
+        else ()
+            set(EXPAT_COPY libexpat.so.1 libexpat.so)
+        endif ()
     endif (WINDOWS)
     set(EXPAT_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include)
 endif (USESYSTEMLIBS)
diff --git a/indra/cmake/Variables.cmake b/indra/cmake/Variables.cmake
index 3d0cb0a3c9..99b19ff07a 100644
--- a/indra/cmake/Variables.cmake
+++ b/indra/cmake/Variables.cmake
@@ -138,19 +138,45 @@ endif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 
 if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
   set(DARWIN 1)
-  
-  # now we only support Xcode 7.0 using 10.11 (El Capitan), minimum OS 10.7 (Lion)
+
+  # The following must agree with
+  # https://bitbucket.org/lindenlab/viewer-build-variables/src/tip/variables
+  # Reading $LL_BUILD is an attempt to directly use those switches.
+  if ("$ENV{LL_BUILD}" STREQUAL "")
+    message(FATAL_ERROR "Environment variable LL_BUILD must be set")
+  endif ()
+
+  string(REGEX MATCH "-mmacosx-version-min=([^ ]+)" scratch "$ENV{LL_BUILD}")
+  set(CMAKE_OSX_DEPLOYMENT_TARGET "${CMAKE_MATCH_1}")
+  message(STATUS "CMAKE_OSX_DEPLOYMENT_TARGET = '${CMAKE_OSX_DEPLOYMENT_TARGET}'")
+
+  string(REGEX MATCH "-stdlib=([^ ]+)" scratch "$ENV{LL_BUILD}")
+  set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "${CMAKE_MATCH_1}")
+  message(STATUS "CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY = '${CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY}'")
+
+  string(REGEX MATCH " -g([^ ]*)" scratch "$ENV{LL_BUILD}")
+  set(CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT "${CMAKE_MATCH_1}")
+  message(STATUS "CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT = '${CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT}'")
+
+  string(REGEX MATCH "-O([^ ]*)" scratch "$ENV{LL_BUILD}")
+  set(CMAKE_XCODE_ATTRIBUTE_GCC_OPTIMIZATION_LEVEL "${CMAKE_MATCH_1}")
+  message(STATUS "CMAKE_XCODE_ATTRIBUTE_GCC_OPTIMIZATION_LEVEL = '${CMAKE_XCODE_ATTRIBUTE_GCC_OPTIMIZATION_LEVEL}'")
+
+  string(REGEX MATCHALL "[^ ]+" LL_BUILD_LIST "$ENV{LL_BUILD}")
+  list(FIND LL_BUILD_LIST "-iwithsysroot" sysroot_idx)
+  if ("${sysroot_idx}" LESS 0)
+    message(FATAL_ERROR "Environment variable LL_BUILD must contain '-iwithsysroot'")
+  endif ()
+  math(EXPR sysroot_idx "${sysroot_idx} + 1")
+  list(GET LL_BUILD_LIST "${sysroot_idx}" CMAKE_OSX_SYSROOT)
+  message(STATUS "CMAKE_OSX_SYSROOT = '${CMAKE_OSX_SYSROOT}'")
+
   set(XCODE_VERSION 7.0)
-  set(CMAKE_OSX_DEPLOYMENT_TARGET 10.7)
-  set(CMAKE_OSX_SYSROOT macosx10.11)
 
   set(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.llvm.clang.1_0")
-  set(CMAKE_XCODE_ATTRIBUTE_GCC_OPTIMIZATION_LEVEL 3)
   set(CMAKE_XCODE_ATTRIBUTE_GCC_STRICT_ALIASING NO)
   set(CMAKE_XCODE_ATTRIBUTE_GCC_FAST_MATH NO)
   set(CMAKE_XCODE_ATTRIBUTE_CLANG_X86_VECTOR_INSTRUCTIONS ssse3)
-  set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
-  set(CMAKE_XCODE_ATTRIBUTE_DEBUG_INFORMATION_FORMAT dwarf-with-dsym)
 
   set(CMAKE_OSX_ARCHITECTURES "${ARCH}")
   string(REPLACE "i686"  "i386"   CMAKE_OSX_ARCHITECTURES "${CMAKE_OSX_ARCHITECTURES}")
diff --git a/indra/integration_tests/llimage_libtest/CMakeLists.txt b/indra/integration_tests/llimage_libtest/CMakeLists.txt
index 44384532cd..13cf1f7bde 100644
--- a/indra/integration_tests/llimage_libtest/CMakeLists.txt
+++ b/indra/integration_tests/llimage_libtest/CMakeLists.txt
@@ -115,10 +115,12 @@ if (DARWIN)
     COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib ${LLIMAGE_LIBTEST_DESTINATION_DIR}
     DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib
   )
-  add_custom_command(TARGET llimage_libtest POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libexpat.1.5.2.dylib ${LLIMAGE_LIBTEST_DESTINATION_DIR}
-    DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libexpat.1.5.2.dylib
-  )
+  foreach(expat ${EXPAT_COPY})
+    add_custom_command(TARGET llimage_libtest POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/${expat} ${LLIMAGE_LIBTEST_DESTINATION_DIR}
+      DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/${expat}
+    )
+  endforeach(expat)
 endif (DARWIN)
 
 if (WINDOWS)
diff --git a/indra/llcorehttp/CMakeLists.txt b/indra/llcorehttp/CMakeLists.txt
index 14fe45c1ae..6232299674 100644
--- a/indra/llcorehttp/CMakeLists.txt
+++ b/indra/llcorehttp/CMakeLists.txt
@@ -174,10 +174,12 @@ if (DARWIN)
     COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib ${LL_TEST_DESTINATION_DIR}
     DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libexception_handler.dylib
   )
-  add_custom_command(TARGET INTEGRATION_TEST_llcorehttp PRE_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/libexpat.1.5.2.dylib ${LL_TEST_DESTINATION_DIR}
-    DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/libexpat.1.5.2.dylib
-  )
+  foreach(expat ${EXPAT_COPY})
+    add_custom_command(TARGET INTEGRATION_TEST_llcorehttp PRE_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy ${AUTOBUILD_INSTALL_DIR}/lib/release/${expat} ${LL_TEST_DESTINATION_DIR}
+      DEPENDS ${AUTOBUILD_INSTALL_DIR}/lib/release/${expat}
+    )
+  endforeach(expat)
 
 endif (DARWIN)
 
diff --git a/indra/llvfs/lldir_mac.cpp b/indra/llvfs/lldir_mac.cpp
index 4038c92465..30a1ac975e 100644
--- a/indra/llvfs/lldir_mac.cpp
+++ b/indra/llvfs/lldir_mac.cpp
@@ -94,7 +94,7 @@ LLDir_Mac::LLDir_Mac()
 		// MBW -- This keeps the mac application from finding other things.
 		// If this is really for skins, it should JUST apply to skins.
         
-		U32 build_dir_pos = mExecutableDir.rfind("/build-darwin-");
+		std::size_t build_dir_pos = mExecutableDir.rfind("/build-darwin-");
 		if (build_dir_pos != std::string::npos)
 		{
 			// ...we're in a dev checkout
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index fa39dd6c65..410782b8b2 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -2045,11 +2045,11 @@
       <key>Comment</key>
       <string>Size (in bytes) for each coroutine stack</string>
       <key>Persist</key>
-      <integer>0</integer>
+      <integer>1</integer>
       <key>Type</key>
       <string>S32</string>
       <key>Value</key>
-      <integer>262144</integer>
+      <integer>524288</integer>
     </map>
     <key>CrashOnStartup</key>
     <map>