acglib.m4

   1 dnl GLIB_IF_VAR_EQ (ENV_VAR, VALUE [, EQUALS_ACTION] [, ELSE_ACTION])
   2 AC_DEFUN(GLIB_IF_VAR_EQ,[
   3         case "$[$1]" in
   4         "[$2]"[)]
   5                 [$3]
   6                 ;;
   7         *[)]
   8                 [$4]
   9                 ;;
  10         esac
  11 ])
  12 dnl GLIB_STR_CONTAINS (SRC_STRING, SUB_STRING [, CONTAINS_ACTION] [, ELSE_ACTION])
  13 AC_DEFUN(GLIB_STR_CONTAINS,[
  14         case "[$1]" in
  15         *"[$2]"*[)]
  16                 [$3]
  17                 ;;
  18         *[)]
  19                 [$4]
  20                 ;;
  21         esac
  22 ])
  23 dnl GLIB_ADD_TO_VAR (ENV_VARIABLE, CHECK_STRING, ADD_STRING)
  24 AC_DEFUN(GLIB_ADD_TO_VAR,[
  25         GLIB_STR_CONTAINS($[$1], [$2], [$1]="$[$1]", [$1]="$[$1] [$3]")
  26 ])
  27
  28 dnl GLIB_SIZEOF (INCLUDES, TYPE, ALIAS [, CROSS-SIZE])
  29 AC_DEFUN(GLIB_SIZEOF,
  30 [changequote(<<, >>)dnl
  31 dnl The name to #define.
  32 define(<<AC_TYPE_NAME>>, translit(glib_sizeof_$3, [a-z *], [A-Z_P]))dnl
  33 dnl The cache variable name.
  34 define(<<AC_CV_NAME>>, translit(glib_cv_sizeof_$3, [ *], [_p]))dnl
  35 changequote([, ])dnl
  36 AC_MSG_CHECKING(size of $2)
  37 AC_CACHE_VAL(AC_CV_NAME,
  38 [AC_TRY_RUN([#include <stdio.h>
  39 $1
  40 main()
  41 {
  42   FILE *f=fopen("conftestval", "w");
  43   if (!f) exit(1);
  44   fprintf(f, "%d\n", sizeof($2));
  45   exit(0);
  46 }], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, ifelse([$4], , , AC_CV_NAME=$4))])dnl
  47 AC_MSG_RESULT($AC_CV_NAME)
  48 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
  49 undefine([AC_TYPE_NAME])dnl
  50 undefine([AC_CV_NAME])dnl
  51 ])
  52
  53 dnl GLIB_BYTE_CONTENTS (INCLUDES, TYPE, ALIAS, N_BYTES, INITIALIZER)
  54 AC_DEFUN(GLIB_BYTE_CONTENTS,
  55 [changequote(<<, >>)dnl
  56 dnl The name to #define.
  57 define(<<AC_TYPE_NAME>>, translit(glib_byte_contents_$3, [a-z *], [A-Z_P]))dnl
  58 dnl The cache variable name.
  59 define(<<AC_CV_NAME>>, translit(glib_cv_byte_contents_$3, [ *], [_p]))dnl
  60 changequote([, ])dnl
  61 AC_MSG_CHECKING(byte contents of $2)
  62 AC_CACHE_VAL(AC_CV_NAME,
  63 [AC_TRY_RUN([#include <stdio.h>
  64 $1
  65 main()
  66 {
  67   static $2 tv = $5;
  68   char *p = (char*) &tv;
  69   int i;
  70   FILE *f=fopen("conftestval", "w");
  71   for (i = 0; i < $4; i++)
  72     fprintf(f, "%s%d", i?",":"", *(p++));
  73   fprintf(f, "\n");
  74   exit(0);
  75 }], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, AC_CV_NAME=0)])dnl
  76 AC_MSG_RESULT($AC_CV_NAME)
  77 AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
  78 undefine([AC_TYPE_NAME])dnl
  79 undefine([AC_CV_NAME])dnl
  80 ])