diff options
Diffstat (limited to 'lgl/m4/ulonglong.m4')
| -rw-r--r-- | lgl/m4/ulonglong.m4 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lgl/m4/ulonglong.m4 b/lgl/m4/ulonglong.m4 index 9fae98e3a6..e9807895a7 100644 --- a/lgl/m4/ulonglong.m4 +++ b/lgl/m4/ulonglong.m4 @@ -1,5 +1,5 @@ -# ulonglong.m4 serial 6 -dnl Copyright (C) 1999-2006 Free Software Foundation, Inc. +# ulonglong.m4 serial 7 +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_UNSIGNED_LONG_LONG_INT if 'unsigned 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 'unsigned long long int' exists but is only 32 bits # large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT @@ -21,7 +21,10 @@ AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT], [ac_cv_type_unsigned_long_long_int], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( - [[unsigned long long int ull = 18446744073709551615ULL; + [[#if ! (18446744073709551615ULL <= -1u) + error in preprocessor; + #endif + unsigned long long int ull = 18446744073709551615ULL; typedef int a[(18446744073709551615ULL <= (unsigned long long int) -1 ? 1 : -1)]; int i = 63;]], |