1dnl ### A macro to determine endianness of long long
2AC_DEFUN([AC_LITTLE_ENDIAN_LONG_LONG],
3[AC_MSG_CHECKING(for little endian long long)
4AC_CACHE_VAL(ac_cv_have_little_endian_long_long,
5[AC_RUN_IFELSE([AC_LANG_SOURCE([[
6int main () {
7	union {
8		long long ll;
9		int l [2];
10	} u;
11	u.ll = 0x12345678;
12	if (u.l[0] == 0x12345678)
13		return 0;
14	return 1;
15}
16]])],[ac_cv_have_little_endian_long_long=yes],[ac_cv_have_little_endian_long_long=no],[
17if test "x$ac_cv_c_bigendian" = "xyes"; then
18	ac_cv_have_little_endian_long_long=no
19else
20	ac_cv_have_little_endian_long_long=yes
21fi
22])])
23AC_MSG_RESULT($ac_cv_have_little_endian_long_long)
24if test "$ac_cv_have_little_endian_long_long" = yes
25then
26	AC_DEFINE([HAVE_LITTLE_ENDIAN_LONG_LONG], 1,
27[Define if long long is little-endian.])
28fi
29])
30