longlong.m4
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longlong.m4
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			# 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
			])