compile with correct flags to determine SSE4.2 support

With some compilers, `-std=c++11` is necessary for <cstdint> to be available. Pass this flag via $PLATFORM_CXXFLAGS. Fixes #2488.
facebook · Jul 8, 2017 · 430f014 · 430f014
1 parent a43c053
commit 430f014
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform
@@ -456,7 +456,7 @@ elif test -z "$PORTABLE"; then
   fi
 fi
 
-$CXX $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
+$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
   #include <cstdint>
   #include <nmmintrin.h>
   int main() {