From 35aad022be07f5c8cca4de9a9c71480157275800 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 18 Feb 2009 15:17:36 -0500 Subject: include the m4 files from the autoconf-archive package Not everyone has the autoconf-archive package installed, so have the autogen.sh script automatically update the local copies and include them in the tree. Signed-off-by: Mike Frysinger --- m4/ax_cflags_warn_all.m4 | 155 ++++++++++++++++++++++++++++++++++++++++++ m4/ax_check_compiler_flags.m4 | 78 +++++++++++++++++++++ m4/ax_check_linker_flags.m4 | 79 +++++++++++++++++++++ 3 files changed, 312 insertions(+) create mode 100644 m4/ax_cflags_warn_all.m4 create mode 100644 m4/ax_check_compiler_flags.m4 create mode 100644 m4/ax_check_linker_flags.m4 (limited to 'm4') diff --git a/m4/ax_cflags_warn_all.m4 b/m4/ax_cflags_warn_all.m4 new file mode 100644 index 0000000..1df00cc --- /dev/null +++ b/m4/ax_cflags_warn_all.m4 @@ -0,0 +1,155 @@ +# =========================================================================== +# http://autoconf-archive.cryp.to/ax_cflags_warn_all.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])] +# +# DESCRIPTION +# +# Try to find a compiler option that enables most reasonable warnings. +# This macro is directly derived from VL_PROG_CC_WARNINGS which is split +# up into two AX_CFLAGS_WARN_ALL and AX_CFLAGS_WARN_ALL_ANSI +# +# For the GNU CC compiler it will be -Wall (and -ansi -pedantic) The +# result is added to the shellvar being CFLAGS by default. +# +# Currently this macro knows about GCC, Solaris C compiler, Digital Unix C +# compiler, C for AIX Compiler, HP-UX C compiler, IRIX C compiler, NEC +# SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos 10.0.0.8) C +# compiler. +# +# - $1 shell-variable-to-add-to : CFLAGS +# - $2 add-value-if-not-found : nothing +# - $3 action-if-found : add value to shellvariable +# - $4 action-if-not-found : nothing +# +# LAST MODIFICATION +# +# 2008-04-12 +# +# COPYLEFT +# +# Copyright (c) 2008 Guido U. Draheim +# +# 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 . +# +# 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. + +AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl +AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl +AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_warn_all])dnl +AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings], +VAR,[VAR="no, unknown" + AC_LANG_SAVE + AC_LANG_C + ac_save_[]FLAGS="$[]FLAGS" +for ac_arg dnl +in "-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_TRY_COMPILE([],[return 0;], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) +done + FLAGS="$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 +]) + +dnl the only difference - the LANG selection... and the default FLAGS + +AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl +AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl +AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_warn_all])dnl +AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings], +VAR,[VAR="no, unknown" + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + ac_save_[]FLAGS="$[]FLAGS" +for ac_arg dnl +in "-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_TRY_COMPILE([],[return 0;], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) +done + FLAGS="$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 +]) + +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 delimimiter. A non-option comment can be given after "%%" marks +dnl which will be shown but not added to the respective C/CXXFLAGS. diff --git a/m4/ax_check_compiler_flags.m4 b/m4/ax_check_compiler_flags.m4 new file mode 100644 index 0000000..05e5c3b --- /dev/null +++ b/m4/ax_check_compiler_flags.m4 @@ -0,0 +1,78 @@ +# =========================================================================== +# http://autoconf-archive.cryp.to/ax_check_compiler_flags.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CHECK_COMPILER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE]) +# +# DESCRIPTION +# +# Check whether the given compiler FLAGS work with the current language's +# compiler, or whether they give an error. (Warnings, however, are +# ignored.) +# +# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on +# success/failure. +# +# LAST MODIFICATION +# +# 2008-04-12 +# +# COPYLEFT +# +# Copyright (c) 2008 Steven G. Johnson +# Copyright (c) 2008 Matteo Frigo +# +# 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 . +# +# 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. + +AC_DEFUN([AX_CHECK_COMPILER_FLAGS], +[AC_PREREQ(2.59) dnl for _AC_LANG_PREFIX +AC_MSG_CHECKING([whether _AC_LANG compiler accepts $1]) +dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname: +AS_LITERAL_IF([$1], + [AC_CACHE_VAL(AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1), [ + ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS + _AC_LANG_PREFIX[]FLAGS="$1" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], + AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=yes, + AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=no) + _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS])], + [ax_save_FLAGS=$[]_AC_LANG_PREFIX[]FLAGS + _AC_LANG_PREFIX[]FLAGS="$1" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], + eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=yes, + eval AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1)=no) + _AC_LANG_PREFIX[]FLAGS=$ax_save_FLAGS]) +eval ax_check_compiler_flags=$AS_TR_SH(ax_cv_[]_AC_LANG_ABBREV[]_flags_$1) +AC_MSG_RESULT($ax_check_compiler_flags) +if test "x$ax_check_compiler_flags" = xyes; then + m4_default([$2], :) +else + m4_default([$3], :) +fi +])dnl AX_CHECK_COMPILER_FLAGS diff --git a/m4/ax_check_linker_flags.m4 b/m4/ax_check_linker_flags.m4 new file mode 100644 index 0000000..3c725ec --- /dev/null +++ b/m4/ax_check_linker_flags.m4 @@ -0,0 +1,79 @@ +# =========================================================================== +# http://autoconf-archive.cryp.to/ax_check_linker_flags.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CHECK_LINKER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE]) +# +# DESCRIPTION +# +# Check whether the given linker FLAGS work with the current language's +# linker, or whether they give an error. +# +# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on +# success/failure. +# +# NOTE: Based on AX_CHECK_COMPILER_FLAGS. +# +# LAST MODIFICATION +# +# 2009-02-01 +# +# COPYLEFT +# +# Copyfight (c) 2009 Mike Frysinger +# Copyright (c) 2008 Steven G. Johnson +# Copyright (c) 2008 Matteo Frigo +# +# 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 . +# +# 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. + +AC_DEFUN([AX_CHECK_LINKER_FLAGS], +[AC_MSG_CHECKING([whether the linker accepts $1]) +dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname: +AS_LITERAL_IF([$1], + [AC_CACHE_VAL(AS_TR_SH(ax_cv_linker_flags_[$1]), [ + ax_save_FLAGS=$LDFLAGS + LDFLAGS="$1" + AC_LINK_IFELSE([AC_LANG_PROGRAM()], + AS_TR_SH(ax_cv_linker_flags_[$1])=yes, + AS_TR_SH(ax_cv_linker_flags_[$1])=no) + LDFLAGS=$ax_save_FLAGS])], + [ax_save_FLAGS=$LDFLAGS + LDFLAGS="$1" + AC_LINK_IFELSE([AC_LANG_PROGRAM()], + eval AS_TR_SH(ax_cv_linker_flags_[$1])=yes, + eval AS_TR_SH(ax_cv_linker_flags_[$1])=no) + LDFLAGS=$ax_save_FLAGS]) +eval ax_check_linker_flags=$AS_TR_SH(ax_cv_linker_flags_[$1]) +AC_MSG_RESULT($ax_check_linker_flags) +if test "x$ax_check_linker_flags" = xyes; then + m4_default([$2], :) +else + m4_default([$3], :) +fi +])dnl AX_CHECK_LINKER_FLAGS -- cgit v1.2.3-65-gdbad