diff options
Diffstat (limited to 'lgl/m4/longlong.m4')
| -rw-r--r-- | lgl/m4/longlong.m4 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lgl/m4/longlong.m4 b/lgl/m4/longlong.m4 index 1f9e862ef1..5799c3965a 100644 --- a/lgl/m4/longlong.m4 +++ b/lgl/m4/longlong.m4 @@ -1,5 +1,5 @@ -# longlong.m4 serial 10 -dnl Copyright (C) 1999-2006 Free Software Foundation, Inc. +# longlong.m4 serial 11 +dnl Copyright (C) 1999-2007 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. @@ -7,8 +7,8 @@ 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. +# This fixes a bug in Autoconf 2.61, but can be removed once we +# assume 2.62 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 @@ -19,7 +19,10 @@ 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; + [[#if ! (-9223372036854775807LL < 0 && 0 < 9223372036854775807ll) + error in preprocessor; + #endif + long long int ll = 9223372036854775807ll; long long int nll = -9223372036854775807LL; typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll) |