mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-23 06:05:27 +00:00
62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
# intmax_t.m4 serial 6
|
|
dnl Copyright (C) 1997-2004, 2006-2007 Free Software Foundation, Inc.
|
|
dnl This file is free software; the Free Software Foundation
|
|
dnl gives unlimited permission to copy and/or distribute it,
|
|
dnl with or without modifications, as long as this notice is preserved.
|
|
|
|
dnl From Paul Eggert.
|
|
|
|
AC_PREREQ(2.13)
|
|
|
|
# Define intmax_t to 'long' or 'long long'
|
|
# if it is not already defined in <stdint.h> or <inttypes.h>.
|
|
|
|
AC_DEFUN([gl_AC_TYPE_INTMAX_T],
|
|
[
|
|
dnl For simplicity, we assume that a header file defines 'intmax_t' if and
|
|
dnl only if it defines 'uintmax_t'.
|
|
AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
|
|
AC_REQUIRE([gl_AC_HEADER_STDINT_H])
|
|
if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
|
|
AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
|
|
test $ac_cv_type_long_long_int = yes \
|
|
&& ac_type='long long' \
|
|
|| ac_type='long'
|
|
AC_DEFINE_UNQUOTED(intmax_t, $ac_type,
|
|
[Define to long or long long if <inttypes.h> and <stdint.h> don't define.])
|
|
else
|
|
AC_DEFINE(HAVE_INTMAX_T, 1,
|
|
[Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
|
|
fi
|
|
])
|
|
|
|
dnl An alternative would be to explicitly test for 'intmax_t'.
|
|
|
|
AC_DEFUN([gt_AC_TYPE_INTMAX_T],
|
|
[
|
|
AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
|
|
AC_REQUIRE([gl_AC_HEADER_STDINT_H])
|
|
AC_CACHE_CHECK(for intmax_t, gt_cv_c_intmax_t,
|
|
[AC_TRY_COMPILE([
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#if HAVE_STDINT_H_WITH_UINTMAX
|
|
#include <stdint.h>
|
|
#endif
|
|
#if HAVE_INTTYPES_H_WITH_UINTMAX
|
|
#include <inttypes.h>
|
|
#endif
|
|
], [intmax_t x = -1; return !x;], gt_cv_c_intmax_t=yes, gt_cv_c_intmax_t=no)])
|
|
if test $gt_cv_c_intmax_t = yes; then
|
|
AC_DEFINE(HAVE_INTMAX_T, 1,
|
|
[Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
|
|
else
|
|
AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
|
|
test $ac_cv_type_long_long_int = yes \
|
|
&& ac_type='long long' \
|
|
|| ac_type='long'
|
|
AC_DEFINE_UNQUOTED(intmax_t, $ac_type,
|
|
[Define to long or long long if <stdint.h> and <inttypes.h> don't define.])
|
|
fi
|
|
])
|