diff options
Diffstat (limited to 'Build/source/texk/web2c/luatexdir/zziplib/m4/ax_cflags_no_writable_strings.m4')
-rw-r--r-- | Build/source/texk/web2c/luatexdir/zziplib/m4/ax_cflags_no_writable_strings.m4 | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/Build/source/texk/web2c/luatexdir/zziplib/m4/ax_cflags_no_writable_strings.m4 b/Build/source/texk/web2c/luatexdir/zziplib/m4/ax_cflags_no_writable_strings.m4 deleted file mode 100644 index e13ec09c278..00000000000 --- a/Build/source/texk/web2c/luatexdir/zziplib/m4/ax_cflags_no_writable_strings.m4 +++ /dev/null @@ -1,140 +0,0 @@ -dnl @synopsis AX_CFLAGS_NO_WRITABLE_STRINGS [(shellvar [,default, [A/NA]])] -dnl -dnl Try to find a compiler option that makes all stringliteral -dnl readonly. -dnl -dnl The sanity check is done by looking at string.h which has a set of -dnl strcpy definitions that should be defined with const-modifiers to -dnl not emit a warning in all so many places. -dnl -dnl For the GNU CC compiler it will be -fno-writable-strings -dnl -Wwrite-strings The result is added to the shellvar being CFLAGS by -dnl default. -dnl -dnl DEFAULTS: -dnl -dnl - $1 shell-variable-to-add-to : CFLAGS -dnl - $2 add-value-if-not-found : nothing -dnl - $3 action-if-found : add value to shellvariable -dnl - $4 action-if-not-found : nothing -dnl -dnl @category C -dnl @author Guido Draheim <guidod@gmx.de> -dnl @version 2003-05-21 -dnl @license GPLWithACException - -AC_DEFUN([AX_CFLAGS_NO_WRITABLE_STRINGS],[dnl -AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_no_writable_strings])dnl -AC_CACHE_CHECK([m4_ifval([$1],[$1],FLAGS) making strings readonly], -VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG_C - ac_save_[]FLAGS="$[]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 "-Wall % -fno-writable-strings -Wwrite-strings" dnl GCC - "-v -Xc % -xstrconst" dnl Solaris C - strings go into readonly segment - "+w1 -Aa % +ESlit" dnl HP-UX C - strings go into readonly segment - "-w0 -std1 % -readonly_strings" dnl Digital Unix - again readonly segment - "-fullwarn -use_readonly_const %% ok, its the default" dnl IRIX C - # -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 - testing strcpy() from string.h - cp config.log config.tmp - AC_TRY_COMPILE([#include <string.h>],[ - char test[16]; - if (strcpy (test, "test")) return 1;], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 - then VAR="no, suppressed, string.h," ; fi], - [VAR="no, suppressed, string.h"]) - rm config.tmp - ;; -esac - FLAGS="$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 -]) - -dnl the only difference - the LANG selection... and the default FLAGS - -AC_DEFUN([AX_CXXFLAGS_NO_WRITABLE_STRINGS],[dnl -AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_no_writable_strings])dnl -AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) making strings readonly], -VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG_CXX - ac_save_[]FLAGS="$[]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 "-Wall % -fno-writable-strings -Wwrite-strings" dnl GCC - "-v -Xc % -xstrconst" dnl Solaris C - strings go into readonly segment - "+w1 -Aa % +ESlit" dnl HP-UX C - strings go into readonly segment - "-w0 -std1 % -readonly_strings" dnl Digital Unix - again readonly segment - "-fullwarn -use_readonly_const %% ok, its the default" dnl IRIX C - # -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 - testing strcpy() from string.h - cp config.log config.tmp - AC_TRY_COMPILE([#include <string.h>],[[ - char test[16]; - if (strcpy (test, "test")) return 1;]], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 - then VAR="no, suppressed, string.h," ; fi], - [VAR="no, suppressed, string.h"]) - rm config.tmp - ;; -esac - FLAGS="$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) $VAR"]) - 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 -]) |