diff options
-rwxr-xr-x | configure | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -2483,7 +2483,10 @@ if [ -z "$PLATFORM" ]; then # about the OS version, since we're not using the clang version that comes # with the system. We use 'xcrun' to check the clang version that's part of # the Xcode installation. - if [ "$(/usr/bin/xcrun -sdk macosx clang -v 2>&1 | sed -n 's/.*version \([0-9]\).*/\1/p')" -ge 3 ]; then + XCRUN=`/usr/bin/xcrun -sdk macosx clang -v 2>&1` + CLANGVERSION=`echo "$XCRUN" | sed -n 's/.*version \([0-9]\).*/\1/p'` + expr "$CLANGVERSION" : '[0-9]' > /dev/null || { echo "Unable to determine CLANG version from output of xcrun: $XCRUN" ; exit 2 ; } + if [ "$CLANGVERSION" -ge 3 ]; then PLATFORM=macx-clang # Advertise g++ as an alternative on Lion and below |