1 2AC_DEFUN([rk_LIBDISPATCH],[ 3 4AC_CHECK_PROGS(GCD_MIG, mig, no) 5 6if test "$GCD_MIG" != no; then 7 AC_CHECK_HEADERS([dispatch/dispatch.h]) 8 AC_FIND_FUNC_NO_LIBS(dispatch_async_f, dispatch, 9 [#ifdef HAVE_DISPATCH_DISPATCH_H 10 #include <dispatch/dispatch.h> 11 #endif],[0,0,0]) 12 13 if test "$ac_cv_func_dispatch_async_f" = yes -a "$GCD_MIG" != no; then 14 AC_DEFINE([HAVE_GCD], 1, [Define if os support gcd.]) 15 libdispatch=yes 16 else 17 libdispatch=no 18 fi 19 20fi 21AM_CONDITIONAL(have_gcd, test "$libdispatch" = yes -a "$GCD_MIG" != no) 22 23]) 24