File:  [gforth] / gforth / Attic / aclocal.m4
Revision 1.1: download - view: text, annotated - select for diffs
Tue Feb 13 11:12:15 1996 UTC (25 years, 7 months ago) by anton
Branches: MAIN
CVS tags: v0-3-0, v0-2-1, v0-2-0, HEAD
completed double-cell support for machines without a corresponding C int type

    1: dnl AC_CHECK_INT_TYPE macro
    2: 
    3: dnl Copyright (C) 1996 Free Software Foundation, Inc.
    4: 
    5: dnl This file is part of Gforth.
    6: 
    7: dnl Gforth is free software; you can redistribute it and/or
    8: dnl modify it under the terms of the GNU General Public License
    9: dnl as published by the Free Software Foundation; either version 2
   10: dnl of the License, or (at your option) any later version.
   11: 
   12: dnl This program is distributed in the hope that it will be useful,
   13: dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.dnl See the
   15: dnl GNU General Public License for more details.
   16: 
   17: dnl You should have received a copy of the GNU General Public License
   18: dnl along with this program; if not, write to the Free Software
   19: dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: 
   21: dnl AC_CHECK_INT_TYPE(SIZE, DESCRIPTION [, CROSS-SIZE])
   22: AC_DEFUN(AC_CHECK_INT_TYPE,
   23: [changequote(<<, >>)dnl
   24: dnl The name to #define.
   25: define(<<AC_TYPE_NAME>>, translit($2_TYPE, [a-z *], [A-Z_P]))dnl
   26: dnl The cache variable name.
   27: define(<<AC_CV_NAME>>, translit(ac_cv_int_type_$2, [ *], [_p]))dnl
   28: changequote([, ])dnl
   29: AC_MSG_CHECKING(integer type for $2)
   30: AC_CACHE_VAL(AC_CV_NAME,
   31: [AC_TRY_RUN([#include <stdio.h>
   32: main()
   33: {
   34:   FILE *f=fopen("conftestval", "w");
   35:   if (!f) exit(1);
   36: #define check_size(type) if (sizeof(type)==($1)) fputs(#type, f), exit(0)
   37:   check_size(int);
   38:   check_size(short);
   39:   check_size(char);
   40:   check_size(long);
   41:   check_size(long long);
   42:   fputs("none",f), exit(0);
   43: }], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, ifelse([$3], , , AC_CV_NAME=$3))])dnl
   44: AC_MSG_RESULT($AC_CV_NAME)
   45: AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
   46: undefine([AC_TYPE_NAME])dnl
   47: undefine([AC_CV_NAME])dnl
   48: ])

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