Mac: Updated availability macro in build script.
diff --git a/build-scripts/gcc-fat.sh b/build-scripts/gcc-fat.sh
index bfc72b8..65f759d 100755
--- a/build-scripts/gcc-fat.sh
+++ b/build-scripts/gcc-fat.sh
@@ -14,7 +14,7 @@ GCC_LINK_X86="-mmacosx-version-min=10.6"
# Intel 64-bit compiler flags (10.6 runtime compatibility)
GCC_COMPILE_X64="gcc -arch x86_64 -mmacosx-version-min=10.6 \
--DMAC_OS_X_VERSION_MIN_REQUIRED=1050 \
+-DMAC_OS_X_VERSION_MIN_REQUIRED=1060 \
-I/usr/local/include"
GCC_LINK_X64="-mmacosx-version-min=10.6"