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-rw-r--r--support/chktex/m4/ax_cflags_strict_prototypes.m4153
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++])
])