##### http://autoconf-archive.cryp.to/ax_cflags_warn_all_ansi.html # # SYNOPSIS # # AX_CFLAGS_WARN_ALL_ANSI [(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 # # 2006-12-12 # # COPYLEFT # # Copyright (c) 2006 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # # 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_ANSI],[dnl AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_warn_all_ansi])dnl AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum ansi warnings], VAR,[VAR="no, unknown" AC_LANG_SAVE AC_LANG_C ac_save_[]FLAGS="$[]FLAGS" # IRIX C compiler: # -use_readonly_const is the default for IRIX C, # puts them into .rodata, but they are copied later. # need to be "-G0 -rdatashared" for strictmode but # I am not sure what effect that has really. - guidod for ac_arg dnl in "-pedantic % -Wall -ansi -pedantic" dnl GCC "-xstrconst % -v -Xc" dnl Solaris C "-std1 % -verbose -w0 -warnprotos -std1" dnl Digital Unix " % -qlanglvl=ansi -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX " % -ansi -ansiE -fullwarn" dnl IRIX "+ESlit % +w1 -Aa" dnl HP-UX C "-Xc % -pvctl[,]fullmsg -Xc" dnl NEC SX-5 (Super-UX 10) "-h conform % -h msglevel 2 -h conform" 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_ANSI],[dnl AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_warn_all_ansi])dnl AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum ansi warnings], VAR,[VAR="no, unknown" AC_LANG_SAVE AC_LANG_CPLUSPLUS ac_save_[]FLAGS="$[]FLAGS" # IRIX C compiler: # -use_readonly_const is the default for IRIX C, # puts them into .rodata, but they are copied later. # need to be "-G0 -rdatashared" for strictmode but # I am not sure what effect that has really. - guidod for ac_arg dnl in "-pedantic % -Wall -ansi -pedantic" dnl GCC "-xstrconst % -v -Xc" dnl Solaris C "-std1 % -verbose -w0 -warnprotos -std1" dnl Digital Unix " % -qlanglvl=ansi -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX " % -ansi -ansiE -fullwarn" dnl IRIX "+ESlit % +w1 -Aa" dnl HP-UX C "-Xc % -pvctl[,]fullmsg -Xc" dnl NEC SX-5 (Super-UX 10) "-h conform % -h msglevel 2 -h conform" 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 ])