80 lines
2.2 KiB
Plaintext
80 lines
2.2 KiB
Plaintext
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dnl cloned from autoconf 2.13 acspecific.m4
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AC_DEFUN(AC_C_LONG_LONG,
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[AC_CACHE_CHECK(for long long, ac_cv_c_long_long,
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[if test "$GCC" = yes; then
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ac_cv_c_long_long=yes
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else
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AC_TRY_RUN([int main() {
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long long foo = 0;
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exit(sizeof(long long) < sizeof(long)); }],
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ac_cv_c_long_long=yes, ac_cv_c_long_long=no)
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fi])
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if test $ac_cv_c_long_long = yes; then
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AC_DEFINE(HAVE_LONG_LONG)
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fi
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])
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dnl from autoconf 2.13 acgeneral.m4, with patch:
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dnl Date: Fri, 15 Jan 1999 05:52:41 -0800
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dnl Message-ID: <199901151352.FAA18237@shade.twinsun.com>
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dnl From: eggert@twinsun.com (Paul Eggert)
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dnl Subject: autoconf 2.13 AC_CHECK_TYPE doesn't allow shell vars
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dnl Newsgroups: gnu.utils.bug
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dnl AC_CHECK_TYPE2(TYPE, DEFAULT)
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AC_DEFUN(AC_CHECK_TYPE2,
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[AC_REQUIRE([AC_HEADER_STDC])dnl
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AC_MSG_CHECKING(for $1)
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AC_CACHE_VAL(ac_cv_type_$1,
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[AC_EGREP_CPP(dnl
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changequote(<<,>>)dnl
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<<(^|[^a-zA-Z_0-9])$1[^a-zA-Z_0-9]>>dnl
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changequote([,]), [#include <sys/types.h>
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#if STDC_HEADERS
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#include <stdlib.h>
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#include <stddef.h>
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#endif], eval "ac_cv_type_$1=yes", eval "ac_cv_type_$1=no")])dnl
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if eval "test \"`echo '$ac_cv_type_'$1`\" = yes"; then
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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AC_DEFINE_UNQUOTED($1, $2)
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fi
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])
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dnl from autoconf 2.13 acgeneral.m4, with additional third argument
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dnl AC_CHECK_SIZEOF_INCLUDES(TYPE [, CROSS-SIZE, [INCLUDES]])
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AC_DEFUN(AC_CHECK_SIZEOF_INCLUDES,
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[changequote(<<, >>)dnl
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dnl The name to #define.
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define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
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dnl The cache variable name.
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define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
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changequote([, ])dnl
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AC_MSG_CHECKING(size of $1)
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AC_CACHE_VAL(AC_CV_NAME,
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[AC_TRY_RUN([$3
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#include <stdio.h>
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main()
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{
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FILE *f=fopen("conftestval", "w");
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if (!f) exit(1);
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fprintf(f, "%d\n", sizeof($1));
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exit(0);
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}], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, ifelse([$2], , , AC_CV_NAME=$2))])dnl
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AC_MSG_RESULT($AC_CV_NAME)
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AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
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undefine([AC_TYPE_NAME])dnl
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undefine([AC_CV_NAME])dnl
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])
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dnl AC_CHECK_SIZEOF_STDC_HEADERS(TYPE [, CROSS_SIZE])
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AC_DEFUN(AC_CHECK_SIZEOF_STDC_HEADERS,
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[AC_CHECK_SIZEOF_INCLUDES($1, $2,
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[#include <sys/types.h>
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#ifdef STDC_HEADERS
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#include <stdlib.h>
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#endif
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])
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])
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