+dnl ** check for librt
+AC_CHECK_LIB(rt, clock_gettime)
+AC_CHECK_FUNCS(clock_gettime)
+
+dnl ** check for Apple's "interesting" long double compatibility scheme
+AC_MSG_CHECKING(for printf$LDBLStub)
+AC_TRY_LINK_FUNC(printf$LSBLStub,
+ [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
+ [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
+ ],
+ [
+ AC_MSG_RESULT(no)
+ AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
+ [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
+ ])
+
+# test for GTK+
+AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
+if test -n "$GTK_CONFIG"; then
+ if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
+ GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
+ else
+ AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
+ GTK_CONFIG=
+ fi
+fi
+AC_SUBST([GTK_CONFIG])
+
+AC_CONFIG_FILES([mk/config.mk ghc.spec docs/users_guide/ug-book.xml])