Bug#881939: gcc: disable D when cross build native GCC

[YunQiang Su <wzssyqa@gmail.com>]

Package: src:gcc-7
Version: 7.2.0-16

When we build native GCC with the cross gcc, D will always fails.
So please disable D in this condition.

@@ -891,6 +926,12 @@ ifeq ($(with_base_only),yes
   with_d := no
 endif

+ifneq ($(DEB_BUILD_ARCH), $(DEB_HOST_ARCH))
+ifeq ($(DEB_HOST_ARCH), $(DEB_TARGET_ARCH))
+  with_d := no
+endif
+endif
+
 ifeq ($(with_d)-$(with_separate_gdc),yes-yes)
   ifneq (,$(findstring gdc,$(PKGSOURCE)))
     languages := c c++


-- 
YunQiang Su