diff options
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e5bf1bc1a..9a14c4e28 100644 --- a/configure.ac +++ b/configure.ac @@ -1439,6 +1439,20 @@ if test "$GCC" = yes; then if test x"$_gcc_psign" = xyes ; then CFLAGS="$CFLAGS -Wno-pointer-sign" fi + + AC_MSG_CHECKING([if gcc supports -fcommon]) + + _gcc_cflags_save=$CFLAGS + CFLAGS="-fcommon" + + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],_gcc_fcommon=yes,_gcc_fcommon=no) + AC_MSG_RESULT($_gcc_fcommon) + + CFLAGS=$_gcc_cflags_save; + + if test x"$_gcc_fcommon" = xyes ; then + CFLAGS="$CFLAGS -fcommon" + fi fi CL_AS_NOEXECSTACK |