diff --git a/Xcode/OpenSceneGraph/OpenSceneGraph.xcodeproj/project.pbxproj b/Xcode/OpenSceneGraph/OpenSceneGraph.xcodeproj/project.pbxproj
index d939e1cd4..c9d9abe1c 100644
--- a/Xcode/OpenSceneGraph/OpenSceneGraph.xcodeproj/project.pbxproj
+++ b/Xcode/OpenSceneGraph/OpenSceneGraph.xcodeproj/project.pbxproj
@@ -35831,6 +35831,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = (
 					../../include,
 					"$(inherited)",
@@ -35861,6 +35862,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 3;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = ../../include;
 				MACOSX_DEPLOYMENT_TARGET = 10.4;
 				OTHER_CFLAGS = (
@@ -35888,6 +35890,7 @@
 				GCC_AUTO_VECTORIZATION = YES;
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = (
 					../../include,
 					../../../OpenThreads/include,
@@ -38580,6 +38583,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = (
 					../../include,
 					"$(inherited)",
@@ -43615,6 +43619,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 3;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = ../../include;
 				MACOSX_DEPLOYMENT_TARGET = 10.4;
 				OTHER_CFLAGS = (
@@ -48590,6 +48595,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = (
 					../../include,
 					"$(inherited)",
@@ -54619,6 +54625,7 @@
 				GCC_INLINES_ARE_PRIVATE_EXTERN = YES;
 				GCC_MODEL_TUNING = G5;
 				GCC_OPTIMIZATION_LEVEL = 3;
+				GCC_VERSION = 4.0;
 				HEADER_SEARCH_PATHS = ../../include;
 				MACOSX_DEPLOYMENT_TARGET = 10.4;
 				OTHER_CFLAGS = (