1dnl Available from the GNU Autoconf Macro Archive at:
2dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_c_long_long.html
3dnl
4AC_DEFUN([AC_C_LONG_LONG],
5[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
6[if test "$GCC" = yes; then
7  ac_cv_c_long_long=yes
8  else
9        AC_TRY_COMPILE(,[long long int i;],
10   ac_cv_c_long_long=yes,
11   ac_cv_c_long_long=no)
12   fi])
13   if test $ac_cv_c_long_long = yes; then
14     AC_DEFINE(HAVE_LONG_LONG, 1, Define if we have long long)
15   fi
16])
17