1 dnl Common configure.in fragment
3 AC_DEFUN([AM_BINUTILS_WARNINGS],[
4 GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
7 [ --enable-werror treat compile warnings as errors],
8 [case "${enableval}" in
9 yes | y) ERROR_ON_WARNING="yes" ;;
10 no | n) ERROR_ON_WARNING="no" ;;
11 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
14 # Enable -Wno-format by default when using gcc on mingw
17 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
18 GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format"
24 # Enable -Werror by default when using gcc
25 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
30 if test "${ERROR_ON_WARNING}" = yes ; then
31 GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
32 NO_WERROR="-Wno-error"
35 if test "${GCC}" = yes ; then
36 WARN_CFLAGS="${GCC_WARN_CFLAGS}"
39 AC_ARG_ENABLE(build-warnings,
40 [ --enable-build-warnings enable build-time compiler warnings],
41 [case "${enableval}" in
42 yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
43 no) if test "${GCC}" = yes ; then
46 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
47 WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
48 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
49 WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
50 *) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
53 if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
54 echo "Setting warning flags = $WARN_CFLAGS" 6>&1