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authorEduardo Chappa <echappa@gmx.com>2013-02-03 00:59:38 -0700
committerEduardo Chappa <echappa@gmx.com>2013-02-03 00:59:38 -0700
commit094ca96844842928810f14844413109fc6cdd890 (patch)
treee60efbb980f38ba9308ccb4fb2b77b87bbc115f3 /m4/longlong.m4
downloadalpine-094ca96844842928810f14844413109fc6cdd890.tar.xz
Initial Alpine Version
Diffstat (limited to 'm4/longlong.m4')
-rw-r--r--m4/longlong.m448
1 files changed, 48 insertions, 0 deletions
diff --git a/m4/longlong.m4 b/m4/longlong.m4
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+# longlong.m4 serial 8
+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), AC_TYPE_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));]])],
+ [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
+])