diff options
Diffstat (limited to 'support/chktex/m4/ax_cflags_strict_prototypes.m4')
-rw-r--r-- | support/chktex/m4/ax_cflags_strict_prototypes.m4 | 153 |
1 files changed, 40 insertions, 113 deletions
diff --git a/support/chktex/m4/ax_cflags_strict_prototypes.m4 b/support/chktex/m4/ax_cflags_strict_prototypes.m4 index 06ec9e2f27..1a910cfa98 100644 --- a/support/chktex/m4/ax_cflags_strict_prototypes.m4 +++ b/support/chktex/m4/ax_cflags_strict_prototypes.m4 @@ -1,6 +1,6 @@ -# =========================================================================== -# http://autoconf-archive.cryp.to/ax_cflags_strict_prototypes.html -# =========================================================================== +# ================================================================================ +# https://www.gnu.org/software/autoconf-archive/ax_cflags_strict_prototypes.html +# ================================================================================ # # SYNOPSIS # @@ -26,145 +26,72 @@ # - $3 action-if-found : add value to shellvariable # - $4 action-if-not-found : nothing # -# LAST MODIFICATION +# NOTE: These macros depend on AX_APPEND_FLAG. # -# 2008-04-12 -# -# COPYLEFT +# LICENSE # # Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> # -# 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 2 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 Macro 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. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -AC_DEFUN([AX_CFLAGS_STRICT_PROTOTYPES],[dnl -AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_strict_prototypes])dnl -AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for strict prototypes], -VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG_C - ac_save_[]FLAGS="$[]FLAGS" -for ac_arg dnl -in "-pedantic % -fstrict-prototypes -Wstrict-prototypes" dnl GCC - "-pedantic % -Wstrict-prototypes" dnl try to warn atleast - "-pedantic % -Wmissing-prototypes" dnl or another warning - "-pedantic % -Werror-implicit-function-declaration" dnl - "-pedantic % -Wimplicit-function-declaration" dnl - # -do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) -done -case ".$VAR" in - .|.no|.no,*) ;; - *) # sanity check with signal() from sys/signal.h - cp config.log config.tmp - AC_TRY_COMPILE([#include <signal.h>],[ - if (signal (SIGINT, SIG_IGN) == SIG_DFL) return 1; - if (signal (SIGINT, SIG_IGN) != SIG_DFL) return 2;], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 -then if test `diff config.log config.tmp | grep -i warning | wc -l` != 1 -then VAR="no, suppressed, signal.h," ; fi ; fi], - [VAR="no, suppressed, signal.h"]) - rm config.tmp - ;; -esac - FLAGS="$ac_save_[]FLAGS" - AC_LANG_RESTORE -]) -case ".$VAR" in - .ok|.ok,*) m4_ifvaln($3,$3) ;; - .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[ - AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;; - *) m4_ifvaln($3,$3,[ - if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null - then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) - else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" - fi ]) ;; -esac -AS_VAR_POPDEF([VAR])dnl -AS_VAR_POPDEF([FLAGS])dnl -]) +#serial 18 -dnl the only difference - the LANG selection... and the default FLAGS - -AC_DEFUN([AX_CXXFLAGS_STRICT_PROTOTYPES],[dnl -AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_strict_prototypes])dnl +AC_DEFUN([AX_FLAGS_STRICT_PROTOTYPES],[dnl +AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl +AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_strict_prototypes])dnl AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for strict prototypes], VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG_CPLUSPLUS - ac_save_[]FLAGS="$[]FLAGS" +ac_save_[]FLAGS="$[]FLAGS" for ac_arg dnl in "-pedantic -Werror % -fstrict-prototypes -Wstrict-prototypes" dnl GCC - "-pedantic -Werror % -Wstrict-prototypes" dnl try to warn atleast - "-pedantic -Werror % -Wmissing-prototypes" dnl try to warn atleast + "-pedantic -Werror % -Wstrict-prototypes" dnl try to warn at least + "-pedantic -Werror % -Wmissing-prototypes" dnl try to warn at least "-pedantic -Werror % -Werror-implicit-function-declaration" dnl "-pedantic -Werror % -Wimplicit-function-declaration" dnl - "-pedantic % -Wstrict-prototypes %% no, unsupported in C++" dnl oops + "-pedantic % -Wstrict-prototypes %% no, unsupported" dnl oops # do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[return 0;]])], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break], []) done case ".$VAR" in .|.no|.no,*) ;; *) # sanity check with signal() from sys/signal.h cp config.log config.tmp - AC_TRY_COMPILE([#include <signal.h>],[ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[ if (signal (SIGINT, SIG_IGN) == SIG_DFL) return 1; - if (signal (SIGINT, SIG_IGN) != SIG_DFL) return 2;], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 + if (signal (SIGINT, SIG_IGN) != SIG_DFL) return 2;]])], + [dnl the original did use test -n `$CC testprogram.c` + if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 then if test `diff config.log config.tmp | grep -i warning | wc -l` != 1 then VAR="no, suppressed, signal.h," ; fi ; fi], [VAR="no, suppressed, signal.h"]) rm config.tmp ;; esac - FLAGS="$ac_save_[]FLAGS" - AC_LANG_RESTORE +FLAGS="$ac_save_[]FLAGS" ]) +AS_VAR_POPDEF([FLAGS])dnl +AX_REQUIRE_DEFINED([AX_APPEND_FLAG]) case ".$VAR" in .ok|.ok,*) m4_ifvaln($3,$3) ;; - .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[ - AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;; - *) m4_ifvaln($3,$3,[ - if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null - then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) - else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" - fi ]) ;; + .|.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 -AS_VAR_POPDEF([FLAGS])dnl +])dnl AX_FLAGS_STRICT_PROTOTYPES + +AC_DEFUN([AX_CFLAGS_STRICT_PROTOTYPES],[dnl +AC_LANG_PUSH([C]) +AX_FLAGS_STRICT_PROTOTYPES([$1], [$2], [$3], [$4]) +AC_LANG_POP([C]) +]) + +AC_DEFUN([AX_CXXFLAGS_STRICT_PROTOTYPES],[dnl +AC_LANG_PUSH([C++]) +AX_FLAGS_STRICT_PROTOTYPES([$1], [$2], [$3], [$4]) +AC_LANG_POP([C++]) ]) |