diff options
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 0aefdd283cc..70cc7fd9fca 100644 --- a/configure.ac +++ b/configure.ac @@ -594,6 +594,18 @@ else CFLAGS="$saved_CFLAGS $CFLAGS" fi +# check for gcc -Werror=implicit-function-declaration +saved_CFLAGS=$CFLAGS +CFLAGS="-Werror=implicit-function-declaration" +AC_MSG_CHECKING([whether $CC accepts -Werror=implicit-function-declaration]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [cc_werror_implicit=yes], [cc_werror_implicit=no]) +echo $cc_werror_implicit +if test "x$cc_werror_implicit" = "xno"; then + CFLAGS="$saved_CFLAGS" +else + CFLAGS="$saved_CFLAGS $CFLAGS" +fi + case $host_os in linux*) dnl GF_LINUX_HOST_OS=1 |