| dnl Common configure.ac fragment |
| dnl |
| dnl Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| dnl |
| dnl This file is free software; you can redistribute it and/or modify |
| dnl it under the terms of the GNU General Public License as published by |
| dnl the Free Software Foundation; either version 3 of the License, or |
| dnl (at your option) any later version. |
| dnl |
| dnl This program is distributed in the hope that it will be useful, |
| dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
| dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| dnl GNU General Public License for more details. |
| dnl |
| dnl You should have received a copy of the GNU General Public License |
| dnl along with this program; see the file COPYING3. If not see |
| dnl <http://www.gnu.org/licenses/>. |
| dnl |
| |
| AC_DEFUN([AM_BINUTILS_WARNINGS],[ |
| # Set the 'development' global. |
| . $srcdir/../bfd/development.sh |
| |
| GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes" |
| AC_EGREP_CPP([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow") |
| |
| AC_ARG_ENABLE(werror, |
| [ --enable-werror treat compile warnings as errors], |
| [case "${enableval}" in |
| yes | y) ERROR_ON_WARNING="yes" ;; |
| no | n) ERROR_ON_WARNING="no" ;; |
| *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;; |
| esac]) |
| |
| # Disable -Wformat by default when using gcc on mingw |
| case "${host}" in |
| *-*-mingw32*) |
| if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then |
| GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format" |
| fi |
| ;; |
| *) ;; |
| esac |
| |
| # Enable -Werror by default when using gcc. Turn it off for releases. |
| if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" -a "$development" = true ; then |
| ERROR_ON_WARNING=yes |
| fi |
| |
| NO_WERROR= |
| if test "${ERROR_ON_WARNING}" = yes ; then |
| GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror" |
| NO_WERROR="-Wno-error" |
| fi |
| |
| if test "${GCC}" = yes ; then |
| WARN_CFLAGS="${GCC_WARN_CFLAGS}" |
| fi |
| |
| AC_ARG_ENABLE(build-warnings, |
| [ --enable-build-warnings enable build-time compiler warnings], |
| [case "${enableval}" in |
| yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}";; |
| no) if test "${GCC}" = yes ; then |
| WARN_CFLAGS="-w" |
| fi;; |
| ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"` |
| WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";; |
| *,) t=`echo "${enableval}" | sed -e "s/,/ /g"` |
| WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";; |
| *) WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;; |
| esac]) |
| |
| if test x"$silent" != x"yes" && test x"$WARN_CFLAGS" != x""; then |
| echo "Setting warning flags = $WARN_CFLAGS" 6>&1 |
| fi |
| |
| AC_SUBST(WARN_CFLAGS) |
| AC_SUBST(NO_WERROR) |
| ]) |