123 lines
4.9 KiB
Text
123 lines
4.9 KiB
Text
|
# ===========================================================================
|
||
|
|
# http://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
|
||
|
|
# ===========================================================================
|
||
|
|
#
|
||
|
|
# SYNOPSIS
|
||
|
|
#
|
||
|
|
# AX_CFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||
|
|
# AX_CXXFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||
|
|
# AX_FCFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
|
||
|
|
#
|
||
|
|
# DESCRIPTION
|
||
|
|
#
|
||
|
|
# Try to find a compiler option that enables most reasonable warnings.
|
||
|
|
#
|
||
|
|
# For the GNU compiler it will be -Wall (and -ansi -pedantic) The result
|
||
|
|
# is added to the shellvar being CFLAGS, CXXFLAGS, or FCFLAGS by default.
|
||
|
|
#
|
||
|
|
# Currently this macro knows about the GCC, Solaris, Digital Unix, AIX,
|
||
|
|
# HP-UX, IRIX, NEC SX-5 (Super-UX 10), Cray J90 (Unicos 10.0.0.8), and
|
||
|
|
# Intel compilers. For a given compiler, the Fortran flags are much more
|
||
|
|
# experimental than their C equivalents.
|
||
|
|
#
|
||
|
|
# - $1 shell-variable-to-add-to : CFLAGS, CXXFLAGS, or FCFLAGS
|
||
|
|
# - $2 add-value-if-not-found : nothing
|
||
|
|
# - $3 action-if-found : add value to shellvariable
|
||
|
|
# - $4 action-if-not-found : nothing
|
||
|
|
#
|
||
|
|
# NOTE: These macros depend on AX_APPEND_FLAG.
|
||
|
|
#
|
||
|
|
# LICENSE
|
||
|
|
#
|
||
|
|
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
|
||
|
|
# Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify it
|
||
|
|
# under the terms of the GNU General Public License as published by the
|
||
|
|
# Free Software Foundation; either version 3 of the License, or (at your
|
||
|
|
# option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful, but
|
||
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||
|
|
# Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License along
|
||
|
|
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
#
|
||
|
|
# As a special exception, the respective Autoconf Macro's copyright owner
|
||
|
|
# gives unlimited permission to copy, distribute and modify the configure
|
||
|
|
# scripts that are the output of Autoconf when processing the Macro. You
|
||
|
|
# need not follow the terms of the GNU General Public License when using
|
||
|
|
# or distributing such scripts, even though portions of the text of the
|
||
|
|
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||
|
|
# all other use of the material that constitutes the Autoconf Macro.
|
||
|
|
#
|
||
|
|
# This special exception to the GPL applies to versions of the Autoconf
|
||
|
|
# Macro released by the Autoconf Archive. When you make and distribute a
|
||
|
|
# modified version of the Autoconf Macro, you may extend this special
|
||
|
|
# exception to the GPL to apply to your modified version as well.
|
||
|
|
|
||
|
|
#serial 14
|
||
|
|
|
||
|
|
AC_DEFUN([AX_FLAGS_WARN_ALL],[dnl
|
||
|
|
AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl
|
||
|
|
AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
|
||
|
|
AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
|
||
|
|
VAR,[VAR="no, unknown"
|
||
|
|
ac_save_[]FLAGS="$[]FLAGS"
|
||
|
|
for ac_arg dnl
|
||
|
|
in "-warn all % -warn all" dnl Intel
|
||
|
|
"-pedantic % -Wall" dnl GCC
|
||
|
|
"-xstrconst % -v" dnl Solaris C
|
||
|
|
"-std1 % -verbose -w0 -warnprotos" dnl Digital Unix
|
||
|
|
"-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX
|
||
|
|
"-ansi -ansiE % -fullwarn" dnl IRIX
|
||
|
|
"+ESlit % +w1" dnl HP-UX C
|
||
|
|
"-Xc % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10)
|
||
|
|
"-h conform % -h msglevel 2" dnl Cray C (Unicos)
|
||
|
|
#
|
||
|
|
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
|
||
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
|
||
|
|
[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
|
||
|
|
done
|
||
|
|
FLAGS="$ac_save_[]FLAGS"
|
||
|
|
])
|
||
|
|
AS_VAR_POPDEF([FLAGS])dnl
|
||
|
|
AC_REQUIRE([AX_APPEND_FLAG])
|
||
|
|
case ".$VAR" in
|
||
|
|
.ok|.ok,*) m4_ifvaln($3,$3) ;;
|
||
|
|
.|.no|.no,*) m4_default($4,[m4_ifval($2,[AX_APPEND_FLAG([$2], [$1])])]) ;;
|
||
|
|
*) m4_default($3,[AX_APPEND_FLAG([$VAR], [$1])]) ;;
|
||
|
|
esac
|
||
|
|
AS_VAR_POPDEF([VAR])dnl
|
||
|
|
])dnl AX_FLAGS_WARN_ALL
|
||
|
|
dnl implementation tactics:
|
||
|
|
dnl the for-argument contains a list of options. The first part of
|
||
|
|
dnl these does only exist to detect the compiler - usually it is
|
||
|
|
dnl a global option to enable -ansi or -extrawarnings. All other
|
||
|
|
dnl compilers will fail about it. That was needed since a lot of
|
||
|
|
dnl compilers will give false positives for some option-syntax
|
||
|
|
dnl like -Woption or -Xoption as they think of it is a pass-through
|
||
|
|
dnl to later compile stages or something. The "%" is used as a
|
||
|
|
dnl delimiter. A non-option comment can be given after "%%" marks
|
||
|
|
dnl which will be shown but not added to the respective C/CXXFLAGS.
|
||
|
|
|
||
|
|
AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
|
||
|
|
AC_LANG_PUSH([C])
|
||
|
|
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||
|
|
AC_LANG_POP([C])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
|
||
|
|
AC_LANG_PUSH([C++])
|
||
|
|
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||
|
|
AC_LANG_POP([C++])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([AX_FCFLAGS_WARN_ALL],[dnl
|
||
|
|
AC_LANG_PUSH([Fortran])
|
||
|
|
AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
|
||
|
|
AC_LANG_POP([Fortran])
|
||
|
|
])
|