acglib.m4

   1 ## Portability defines that help interoperate with classic and modern autoconfs
   2 ifdef([AC_TR_SH],[
   3 define([GLIB_TR_SH],[AC_TR_SH([$1])])
   4 define([GLIB_TR_CPP],[AC_TR_CPP([$1])])
   5 ], [
   6 define([GLIB_TR_SH],
   7        [patsubst(translit([[$1]], [*+], [pp]), [[^a-zA-Z0-9_]], [_])])
   8 define([GLIB_TR_CPP],
   9        [patsubst(translit([[$1]],
  10                           [*abcdefghijklmnopqrstuvwxyz],
  11                           [PABCDEFGHIJKLMNOPQRSTUVWXYZ]),
  12                  [[^A-Z0-9_]], [_])])
  13 ])
  14
  15 # GLIB_DIVERT_BEFORE_HELP(STUFF)
  16 # Put STUFF early enough so that they are available for $ac_help expansion.
  17 # Handle both classic (<= v2.13) and modern autoconf
  18 ifdef([AC_DIVERT],
  19       [AC_DEFUN([GLIB_DIVERT_BEFORE_HELP],[AC_DIVERT([NOTICE],[$1])])],
  20       [AC_DEFUN([GLIB_DIVERT_BEFORE_HELP],[dnl
  21 AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
  22 $1
  23 AC_DIVERT_POP()])])
  24
  25 dnl GLIB_IF_VAR_EQ (ENV_VAR, VALUE [, EQUALS_ACTION] [, ELSE_ACTION])
  26 AC_DEFUN(GLIB_IF_VAR_EQ,[
  27         case "$[$1]" in
  28         "[$2]"[)]
  29                 [$3]
  30                 ;;
  31         *[)]
  32                 [$4]
  33                 ;;
  34         esac
  35 ])
  36 dnl GLIB_STR_CONTAINS (SRC_STRING, SUB_STRING [, CONTAINS_ACTION] [, ELSE_ACTION])
  37 AC_DEFUN(GLIB_STR_CONTAINS,[
  38         case "[$1]" in
  39         *"[$2]"*[)]
  40                 [$3]
  41                 ;;
  42         *[)]
  43                 [$4]
  44                 ;;
  45         esac
  46 ])
  47 dnl GLIB_ADD_TO_VAR (ENV_VARIABLE, CHECK_STRING, ADD_STRING)
  48 AC_DEFUN(GLIB_ADD_TO_VAR,[
  49         GLIB_STR_CONTAINS($[$1], [$2], [$1]="$[$1]", [$1]="$[$1] [$3]")
  50 ])
  51
  52 dnl GLIB_SIZEOF (INCLUDES, TYPE, ALIAS [, CROSS-SIZE])
  53 AC_DEFUN(GLIB_SIZEOF,
  54 [pushdef([glib_Sizeof], GLIB_TR_SH([glib_cv_sizeof_$3]))dnl
  55 AC_CACHE_CHECK([size of $2], glib_Sizeof,
  56 [AC_TRY_RUN([#include <stdio.h>
  57 #if STDC_HEADERS
  58 #include <stdlib.h>
  59 #include <stddef.h>
  60 #endif
  61 $1
  62 main()
  63 {
  64   FILE *f=fopen("conftestval", "w");
  65   if (!f) exit(1);
  66   fprintf(f, "%d\n", sizeof($2));
  67   exit(0);
  68 }],
  69   [glib_Sizeof=`cat conftestval`  dnl''
  70 ],
  71   [glib_Sizeof=0],
  72   ifelse([$4], [], [], [glib_Sizeof=$4]))])
  73 AC_DEFINE_UNQUOTED(GLIB_TR_CPP(glib_sizeof_$3), [$[]glib_Sizeof], [Size of $3])
  74 popdef([glib_Sizeof])dnl
  75 ])
  76
  77 dnl GLIB_BYTE_CONTENTS (INCLUDES, TYPE, ALIAS, N_BYTES, INITIALIZER)
  78 AC_DEFUN(GLIB_BYTE_CONTENTS,
  79 [pushdef([glib_ByteContents], GLIB_TR_SH([glib_cv_byte_contents_$3]))dnl
  80 AC_CACHE_CHECK([byte contents of $5], glib_ByteContents,
  81 [AC_TRY_RUN([#include <stdio.h>
  82 $1
  83 main()
  84 {
  85   static $2 tv = $5;
  86   char *p = (char*) &tv;
  87   int i;
  88   FILE *f=fopen("conftestval", "w");
  89   if (!f) exit(1);
  90   for (i = 0; i < $4; i++)
  91     fprintf(f, "%s%d", i?",":"", *(p++));
  92   fprintf(f, "\n");
  93   exit(0);
  94 }],
  95    [glib_ByteContents=`cat conftestval`  dnl''
  96 ],
  97    [glib_ByteContents=no],
  98    [glib_ByteContents=no])])
  99 AC_DEFINE_UNQUOTED(GLIB_TR_CPP(glib_byte_contents_$3), [$[]glib_ByteContents],
 100         [Byte contents of $3])
 101 popdef([glib_ByteContents])dnl
 102 ])
 103
 104 dnl GLIB_SYSDEFS (INCLUDES, DEFS_LIST, OFILE [, PREFIX])
 105 AC_DEFUN(GLIB_SYSDEFS,
 106 [glib_sysdefso="translit($3, [-_a-zA-Z0-9 *], [-_a-zA-Z0-9])"
 107 glib_sysdef_msg=`echo $2 | sed 's/:[[^  ]]*//g'`
 108 if test "x`(echo '\n') 2>/dev/null`" != 'x\n'; then
 109   glib_nl='\\n'
 110 else
 111   glib_nl='\n'
 112 fi
 113 AC_MSG_CHECKING(system definitions for $glib_sysdef_msg)
 114 cat >confrun.c <<_______EOF
 115 #include <stdio.h>
 116 $1
 117 int main (int c, char **v) {
 118   FILE *f = fopen ("$glib_sysdefso", "a");
 119   if (!f) return 1;
 120 _______EOF
 121 for glib_sysdef_input in $2 ; do
 122         glib_sysdef=`echo $glib_sysdef_input | sed 's/^\([[^:]]*\):.*$/\1/'`
 123         glib_default=`echo $glib_sysdef_input | sed 's/^[[^:]]*:\(.*\)$/\1/'`
 124         echo "#ifdef $glib_sysdef" >>confrun.c
 125         echo "  fprintf (f, \"#define GLIB_SYSDEF_%s %s%d${glib_nl}\", \"$glib_sysdef\", \"$4\", $glib_sysdef);" >>confrun.c
 126         echo "#else" >>confrun.c
 127         if test $glib_sysdef != $glib_default; then
 128                 echo "  fprintf (f, \"#define GLIB_SYSDEF_%s %s%d${glib_nl}\", \"$glib_sysdef\", \"$4\", $glib_default);" >>confrun.c
 129         else
 130                 echo "  fprintf (f, \"#define GLIB_SYSDEF_%s${glib_nl}\", \"$glib_sysdef\");" >>confrun.c
 131         fi
 132         echo "#endif" >>confrun.c
 133 done
 134 echo "return 0; }" >>confrun.c
 135 AC_TRY_RUN(`cat confrun.c`, AC_MSG_RESULT(done),
 136 [       for glib_sysdef_input in $2 ; do
 137                 glib_sysdef=`echo $glib_sysdef_input | sed 's/^\([[^:]]*\):.*$/\1/'`
 138                 glib_default=`echo $glib_sysdef_input | sed 's/^[[^:]]*:\(.*\)$/\1/'`
 139                 if test $glib_sysdef != $glib_default; then
 140                         glib_default=" $4$glib_default"
 141                 else
 142                         glib_default=
 143                 fi
 144                 echo "#define GLIB_SYSDEF_$glib_sysdef$glib_default" >>$glib_sysdefso
 145         done
 146         AC_MSG_RESULT(failed)])
 147 rm -f confrun.c
 148 ])