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Annotation of gforth/aclocal.m4, revision 1.1

1.1     ! anton       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: ])