| 123456789101112131415161718192021222324 |
- # longlong.m4 serial 5
- dnl Copyright (C) 1999-2004 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 if 'long long' works.
- AC_DEFUN([gl_AC_TYPE_LONG_LONG],
- [
- AC_CACHE_CHECK([for long long], ac_cv_type_long_long,
- [AC_TRY_LINK([long long ll = 1LL; int i = 63;],
- [long long llmax = (long long) -1;
- return ll << i | ll >> i | llmax / ll | llmax % ll;],
- ac_cv_type_long_long=yes,
- ac_cv_type_long_long=no)])
- if test $ac_cv_type_long_long = yes; then
- AC_DEFINE(HAVE_LONG_LONG, 1,
- [Define if you have the 'long long' type.])
- fi
- ])
|
