mirror of
https://github.com/Llewellynvdm/conky.git
synced 2024-11-18 11:05:18 +00:00
c7c822426c
git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky1@1206 7f574dfc-610e-0410-a909-a81674777703
73 lines
2.4 KiB
Plaintext
73 lines
2.4 KiB
Plaintext
# longlong.m4 serial 10
|
|
dnl Copyright (C) 1999-2006 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.
|
|
|
|
# Define HAVE_LONG_LONG_INT if 'long long int' works.
|
|
# This fixes a bug in Autoconf 2.60, but can be removed once we
|
|
# assume 2.61 everywhere.
|
|
|
|
# Note: If the type 'long long int' exists but is only 32 bits large
|
|
# (as on some very old compilers), HAVE_LONG_LONG_INT will not be
|
|
# defined. In this case you can treat 'long long int' like 'long int'.
|
|
|
|
AC_DEFUN([AC_TYPE_LONG_LONG_INT],
|
|
[
|
|
AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],
|
|
[AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[long long int ll = 9223372036854775807ll;
|
|
long long int nll = -9223372036854775807LL;
|
|
typedef int a[((-9223372036854775807LL < 0
|
|
&& 0 < 9223372036854775807ll)
|
|
? 1 : -1)];
|
|
int i = 63;]],
|
|
[[long long int llmax = 9223372036854775807ll;
|
|
return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)
|
|
| (llmax / ll) | (llmax % ll));]])],
|
|
[dnl This catches a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004.
|
|
dnl If cross compiling, assume the bug isn't important, since
|
|
dnl nobody cross compiles for this platform as far as we know.
|
|
AC_RUN_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[@%:@include <limits.h>
|
|
@%:@ifndef LLONG_MAX
|
|
@%:@ define HALF \
|
|
(1LL << (sizeof (long long int) * CHAR_BIT - 2))
|
|
@%:@ define LLONG_MAX (HALF - 1 + HALF)
|
|
@%:@endif]],
|
|
[[long long int n = 1;
|
|
int i;
|
|
for (i = 0; ; i++)
|
|
{
|
|
long long int m = n << i;
|
|
if (m >> i != n)
|
|
return 1;
|
|
if (LLONG_MAX / 2 < m)
|
|
break;
|
|
}
|
|
return 0;]])],
|
|
[ac_cv_type_long_long_int=yes],
|
|
[ac_cv_type_long_long_int=no],
|
|
[ac_cv_type_long_long_int=yes])],
|
|
[ac_cv_type_long_long_int=no])])
|
|
if test $ac_cv_type_long_long_int = yes; then
|
|
AC_DEFINE([HAVE_LONG_LONG_INT], 1,
|
|
[Define to 1 if the system has the type `long long int'.])
|
|
fi
|
|
])
|
|
|
|
# This macro is obsolescent and should go away soon.
|
|
AC_DEFUN([gl_AC_TYPE_LONG_LONG],
|
|
[
|
|
AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
|
|
ac_cv_type_long_long=$ac_cv_type_long_long_int
|
|
if test $ac_cv_type_long_long = yes; then
|
|
AC_DEFINE(HAVE_LONG_LONG, 1,
|
|
[Define if you have the 'long long' type.])
|
|
fi
|
|
])
|