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https://sourceware.org/git/binutils-gdb.git
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760b3e8bc9
This file is quite large and is getting unmanageable. Split it apart to follow aclocal best practices by putting one-macro-per-file. There shouldn't be any real functional changes here as can be seen in the configure script regens.
104 lines
3.8 KiB
Plaintext
104 lines
3.8 KiB
Plaintext
dnl Copyright (C) 1997-2021 Free Software Foundation, Inc.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl
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dnl --enable-build-warnings is for developers of the simulator.
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dnl it enables extra GCC specific warnings.
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dnl arg[1] Enable -Werror by default? ("yes" or "no")
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AC_DEFUN([SIM_AC_OPTION_WARNINGS],
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[
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AC_ARG_ENABLE(werror,
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AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
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[case "${enableval}" in
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yes | y) ERROR_ON_WARNING="yes" ;;
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no | n) ERROR_ON_WARNING="no" ;;
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*) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
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esac])
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# Enable -Werror by default when using gcc
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if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
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ERROR_ON_WARNING=yes
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fi
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WERROR_CFLAGS=""
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m4_if(m4_default([$1], [yes]), [yes], [dnl
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if test "${ERROR_ON_WARNING}" = yes ; then
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WERROR_CFLAGS="-Werror"
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fi
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])dnl
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build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
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-Wpointer-sign \
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-Wno-unused -Wunused-value -Wunused-function \
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-Wno-switch -Wno-char-subscripts -Wmissing-prototypes
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-Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
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-Wold-style-declaration -Wold-style-definition"
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# Enable -Wno-format by default when using gcc on mingw since many
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# GCC versions complain about %I64.
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case "${host}" in
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*-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
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*) build_warnings="$build_warnings -Wformat-nonliteral" ;;
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esac
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AC_ARG_ENABLE(build-warnings,
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AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
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[case "${enableval}" in
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yes) ;;
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no) build_warnings="-w";;
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,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
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build_warnings="${build_warnings} ${t}";;
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*,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
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build_warnings="${t} ${build_warnings}";;
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*) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
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esac
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if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
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echo "Setting compiler warning flags = $build_warnings" 6>&1
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fi])dnl
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AC_ARG_ENABLE(sim-build-warnings,
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AS_HELP_STRING([--enable-sim-build-warnings], [enable SIM specific build-time compiler warnings if gcc is used]),
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[case "${enableval}" in
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yes) ;;
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no) build_warnings="-w";;
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,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
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build_warnings="${build_warnings} ${t}";;
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*,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
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build_warnings="${t} ${build_warnings}";;
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*) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
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esac
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if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
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echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
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fi])dnl
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WARN_CFLAGS=""
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if test "x${build_warnings}" != x -a "x$GCC" = xyes
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then
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AC_MSG_CHECKING(compiler warning flags)
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# Separate out the -Werror flag as some files just cannot be
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# compiled with it enabled.
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for w in ${build_warnings}; do
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case $w in
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-Werr*) WERROR_CFLAGS=-Werror ;;
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*) # Check that GCC accepts it
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $w"
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AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
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CFLAGS="$saved_CFLAGS"
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esac
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done
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AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
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fi
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])
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AC_SUBST(WARN_CFLAGS)
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AC_SUBST(WERROR_CFLAGS)
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