1 dnl Common configure.in fragment
3 AC_DEFUN([AM_BINUTILS_WARNINGS],[
4 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 WARN_CFLAGS="$WARN_CFLAGS -Werror"
22 NO_WERROR="-Wno-error"
25 AC_ARG_ENABLE(build-warnings,
26 [ --enable-build-warnings Enable build-time compiler warnings],
27 [case "${enableval}" in
29 no) WARN_CFLAGS="-w";;
30 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
31 WARN_CFLAGS="${WARN_CFLAGS} ${t}";;
32 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
33 WARN_CFLAGS="${t} ${WARN_CFLAGS}";;
34 *) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
37 if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then
38 echo "Setting warning flags = $WARN_CFLAGS" 6>&1