diff options
Diffstat (limited to 'm4/longlong.m4')
| -rw-r--r-- | m4/longlong.m4 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/m4/longlong.m4 b/m4/longlong.m4 index 36d8b124..7559db59 100644 --- a/m4/longlong.m4 +++ b/m4/longlong.m4 @@ -1,14 +1,15 @@ -# longlong.m4 serial 17 -dnl Copyright (C) 1999-2007, 2009-2016 Free Software Foundation, Inc. +# longlong.m4 serial 19 +dnl Copyright (C) 1999-2007, 2009-2021 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([2.62]) + # Define HAVE_LONG_LONG_INT if 'long long int' works. -# This fixes a bug in Autoconf 2.61, and can be faster -# than what's in Autoconf 2.62 through 2.68. +# This can be faster than what's in Autoconf 2.62 through 2.68. # 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 @@ -27,12 +28,12 @@ AC_DEFUN([AC_TYPE_LONG_LONG_INT], 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 \ + [[#include <limits.h> + #ifndef LLONG_MAX + # define HALF \ (1LL << (sizeof (long long int) * CHAR_BIT - 2)) - @%:@ define LLONG_MAX (HALF - 1 + HALF) - @%:@endif]], + # define LLONG_MAX (HALF - 1 + HALF) + #endif]], [[long long int n = 1; int i; for (i = 0; ; i++) @@ -56,8 +57,7 @@ AC_DEFUN([AC_TYPE_LONG_LONG_INT], ]) # Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works. -# This fixes a bug in Autoconf 2.61, and can be faster -# than what's in Autoconf 2.62 through 2.68. +# This can be faster than what's in Autoconf 2.62 through 2.68. # 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 |