64 lines
2.7 KiB
Plaintext
64 lines
2.7 KiB
Plaintext
dnl *
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dnl * Copyright (c) 2009 Motoyuki Kasahara
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dnl *
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dnl * Redistribution and use in source and binary forms, with or without
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dnl * modification, are permitted provided that the following conditions
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dnl * are met:
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dnl * 1. Redistributions of source code must retain the above copyright
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dnl * notice, this list of conditions and the following disclaimer.
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dnl * 2. Redistributions in binary form must reproduce the above copyright
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dnl * notice, this list of conditions and the following disclaimer in the
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dnl * documentation and/or other materials provided with the distribution.
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dnl * 3. Neither the name of the project nor the names of its contributors
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dnl * may be used to endorse or promote products derived from this software
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dnl * without specific prior written permission.
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dnl *
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dnl * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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dnl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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dnl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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dnl * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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dnl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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dnl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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dnl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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dnl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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dnl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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dnl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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dnl * SUCH DAMAGE.
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dnl *
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dnl *
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dnl * Check for large file support.
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dnl *
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AC_DEFUN([eb_SYS_LARGEFILE], [dnl
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AC_REQUIRE([AC_SYS_LARGEFILE])
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AC_CACHE_CHECK([for ll modifier of printf], ac_cv_func_printf_ll,
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[AC_RUN_IFELSE([
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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int main() {
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char buffer[[128]];
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sprintf(buffer, "%llx", (unsigned long long) 1 << 32);
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return (strcmp(buffer, "100000000") == 0) ? 0 : 1;
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}
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], [ac_cv_func_printf_ll=yes], [ac_cv_func_printf_ll=no])])
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AC_CACHE_CHECK([for I64 modifier of printf], ac_cv_func_printf_i64,
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[AC_RUN_IFELSE([
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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int main() {
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char buffer[[128]];
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sprintf(buffer, "%I64x", (unsigned __int64) 1 << 32);
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return (strcmp(buffer, "100000000") == 0) ? 0 : 1;
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}
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], [ac_cv_func_printf_i64=yes], [ac_cv_func_printf_i64=no])])
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if test "$ac_cv_func_printf_ll" = yes; then
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AC_DEFINE(PRINTF_LL_MODIFIER, 1,
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[Define to `1' if printf() recognizes "ll" modifier for long long])
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fi
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if test "$ac_cv_func_printf_i64" = yes; then
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AC_DEFINE(PRINTF_I64_MODIFIER, 1,
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[Define to `1' if printf() recognizes "I64" modifier for __int64])
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fi])
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