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 ${enableval} for --enable-werror) ;;
14 # Enable -Werror by default when using gcc
15 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
20 if test "${ERROR_ON_WARNING}" = yes ; then
21 GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
22 NO_WERROR="-Wno-error"
25 if test "${GCC}" = yes ; then
26 WARN_CFLAGS="${GCC_WARN_CFLAGS}"
29 AC_ARG_ENABLE(build-warnings,
30 [ --enable-build-warnings Enable build-time compiler warnings],
31 [case "${enableval}" in
32 yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
33 no) if test "${GCC}" = yes ; then
36 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
37 WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
38 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
39 WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
40 *) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
43 if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
44 echo "Setting warning flags = $WARN_CFLAGS" 6>&1