CMake packages: remove .cmake files from target directory

Just like pkgconfig files.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

Makefile

@@ -452,7 +452,9 @@ ifeq ($(BR2_HAVE_DEVFILES),y)
 	( support/scripts/copy.sh $(STAGING_DIR) $(TARGET_DIR) )
 else
 	rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
-		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig
+		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
+		$(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
+	find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 	find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 	find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 endif