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_AC_DIVERT_BEFORE_HELP(STUFF)
  16 # ---------------------------------
  17 # Put STUFF early enough so that they are available for $ac_help expansion.
  18 # Handle both classic (<= v2.13) and modern autoconf
  19 AC_DEFUN([GLIB_AC_DIVERT_BEFORE_HELP],
  20 [ifdef([m4_divert_text], [m4_divert_text([NOTICE],[$1])],
  21        [ifdef([AC_DIVERT], [AC_DIVERT([NOTICE],[$1])],
  22               [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
  23 $1
  24 AC_DIVERT_POP()])])])
  25
  26 dnl GLIB_IF_VAR_EQ (ENV_VAR, VALUE [, EQUALS_ACTION] [, ELSE_ACTION])
  27 AC_DEFUN(GLIB_IF_VAR_EQ,[
  28         case "$[$1]" in
  29         "[$2]"[)]
  30                 [$3]
  31                 ;;
  32         *[)]
  33                 [$4]
  34                 ;;
  35         esac
  36 ])
  37 dnl GLIB_STR_CONTAINS (SRC_STRING, SUB_STRING [, CONTAINS_ACTION] [, ELSE_ACTION])
  38 AC_DEFUN(GLIB_STR_CONTAINS,[
  39         case "[$1]" in
  40         *"[$2]"*[)]
  41                 [$3]
  42                 ;;
  43         *[)]
  44                 [$4]
  45                 ;;
  46         esac
  47 ])
  48 dnl GLIB_ADD_TO_VAR (ENV_VARIABLE, CHECK_STRING, ADD_STRING)
  49 AC_DEFUN(GLIB_ADD_TO_VAR,[
  50         GLIB_STR_CONTAINS($[$1], [$2], [$1]="$[$1]", [$1]="$[$1] [$3]")
  51 ])
  52
  53 dnl GLIB_SIZEOF (INCLUDES, TYPE, ALIAS [, CROSS-SIZE])
  54 AC_DEFUN(GLIB_SIZEOF,
  55 [pushdef([glib_Sizeof], GLIB_TR_SH([glib_cv_sizeof_$3]))dnl
  56 AC_CACHE_CHECK([size of $2], glib_Sizeof,
  57 [AC_TRY_RUN([#include <stdio.h>
  58 #if STDC_HEADERS
  59 #include <stdlib.h>
  60 #include <stddef.h>
  61 #endif
  62 $1
  63 main()
  64 {
  65   FILE *f=fopen("conftestval", "w");
  66   if (!f) exit(1);
  67   fprintf(f, "%d\n", sizeof($2));
  68   exit(0);
  69 }],
  70   [glib_Sizeof=`cat conftestval`  dnl''
  71 ],
  72   [glib_Sizeof=0],
  73   ifelse([$4], [], [], [glib_Sizeof=$4]))])
  74 AC_DEFINE_UNQUOTED(GLIB_TR_CPP(glib_sizeof_$3), [$[]glib_Sizeof], [Size of $3])
  75 popdef([glib_Sizeof])dnl
  76 ])
  77
  78 dnl GLIB_BYTE_CONTENTS (INCLUDES, TYPE, ALIAS, N_BYTES, INITIALIZER)
  79 AC_DEFUN(GLIB_BYTE_CONTENTS,
  80 [pushdef([glib_ByteContents], GLIB_TR_SH([glib_cv_byte_contents_$3]))dnl
  81 AC_CACHE_CHECK([byte contents of $5], glib_ByteContents,
  82 [AC_TRY_RUN([#include <stdio.h>
  83 $1
  84 main()
  85 {
  86   static $2 tv = $5;
  87   char *p = (char*) &tv;
  88   int i;
  89   FILE *f=fopen("conftestval", "w");
  90   if (!f) exit(1);
  91   for (i = 0; i < $4; i++)
  92     fprintf(f, "%s%d", i?",":"", *(p++));
  93   fprintf(f, "\n");
  94   exit(0);
  95 }],
  96    [glib_ByteContents=`cat conftestval`  dnl''
  97 ],
  98    [glib_ByteContents=no],
  99    [glib_ByteContents=no])])
 100 AC_DEFINE_UNQUOTED(GLIB_TR_CPP(glib_byte_contents_$3), [$[]glib_ByteContents],
 101         [Byte contents of $3])
 102 popdef([glib_ByteContents])dnl
 103 ])
 104
 105 dnl GLIB_SYSDEFS (INCLUDES, DEFS_LIST, OFILE [, PREFIX])
 106 AC_DEFUN(GLIB_SYSDEFS,
 107 [glib_sysdefso="translit($3, [-_a-zA-Z0-9 *], [-_a-zA-Z0-9])"
 108 glib_sysdef_msg=`echo $2 | sed 's/:[[^  ]]*//g'`
 109 if test "x`(echo '\n') 2>/dev/null`" != 'x\n'; then
 110   glib_nl='\\n'
 111 else
 112   glib_nl='\n'
 113 fi
 114 AC_MSG_CHECKING(system definitions for $glib_sysdef_msg)
 115 cat >confrun.c <<_______EOF
 116 #include <stdio.h>
 117 $1
 118 int main (int c, char **v) {
 119   FILE *f = fopen ("$glib_sysdefso", "a");
 120   if (!f) return 1;
 121 _______EOF
 122 for glib_sysdef_input in $2 ; do
 123         glib_sysdef=`echo $glib_sysdef_input | sed 's/^\([[^:]]*\):.*$/\1/'`
 124         glib_default=`echo $glib_sysdef_input | sed 's/^[[^:]]*:\(.*\)$/\1/'`
 125         echo "#ifdef $glib_sysdef" >>confrun.c
 126         echo "  fprintf (f, \"#define GLIB_SYSDEF_%s %s%d${glib_nl}\", \"$glib_sysdef\", \"$4\", $glib_sysdef);" >>confrun.c
 127         echo "#else" >>confrun.c
 128         if test $glib_sysdef != $glib_default; then
 129                 echo "  fprintf (f, \"#define GLIB_SYSDEF_%s %s%d${glib_nl}\", \"$glib_sysdef\", \"$4\", $glib_default);" >>confrun.c
 130         else
 131                 echo "  fprintf (f, \"#define GLIB_SYSDEF_%s${glib_nl}\", \"$glib_sysdef\");" >>confrun.c
 132         fi
 133         echo "#endif" >>confrun.c
 134 done
 135 echo "return 0; }" >>confrun.c
 136 AC_TRY_RUN(`cat confrun.c`, AC_MSG_RESULT(done),
 137 [       for glib_sysdef_input in $2 ; do
 138                 glib_sysdef=`echo $glib_sysdef_input | sed 's/^\([[^:]]*\):.*$/\1/'`
 139                 glib_default=`echo $glib_sysdef_input | sed 's/^[[^:]]*:\(.*\)$/\1/'`
 140                 if test $glib_sysdef != $glib_default; then
 141                         glib_default=" $4$glib_default"
 142                 else
 143                         glib_default=
 144                 fi
 145                 echo "#define GLIB_SYSDEF_$glib_sysdef$glib_default" >>$glib_sysdefso
 146         done
 147         AC_MSG_RESULT(failed)])
 148 rm -f confrun.c
 149 ])
 150
 151 # GLIB_CHECK_COMPILE_WARNINGS(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 152 # ---------------------------------------------------------------------
 153 # Try to compile PROGRAM, check for warnings
 154 m4_define([GLIB_CHECK_COMPILE_WARNINGS],
 155 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
 156 rm -f conftest.$ac_objext
 157 glib_ac_compile_save="$ac_compile"
 158 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext'
 159 AS_IF([_AC_EVAL_STDERR($ac_compile) &&
 160          AC_TRY_COMMAND([(if test -s conftest.err; then false ; else true; fi)])],
 161       [$2],
 162       [echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD
 163 cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
 164 m4_ifvaln([$3],[$3])dnl])dnl
 165 ac_compile="$glib_ac_compile_save"
 166 rm -f conftest.$ac_objext conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl
 167 ])# GLIB_CHECK_COMPILE_WARNINGS