qtopia4: fix build for !QTOPIA4_SHARED

Only try to copy the shared objects from staging to target if QT
is configured for shared objects.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/qtopia4/qtopia4.mk

@@ -542,8 +542,8 @@ endif
 
 $(TARGET_DIR)/usr/lib/libQtCore.so.4: $(STAGING_DIR)/usr/lib/libQtCore.la $(QTOPIA4_LIBS)
 	# Strip all installed libs
-	cp -dpf $(STAGING_DIR)/usr/lib/libQtCore.so.* $(TARGET_DIR)/usr/lib/
 ifeq ($(BR2_PACKAGE_QTOPIA4_SHARED),y)
+	cp -dpf $(STAGING_DIR)/usr/lib/libQtCore.so.* $(TARGET_DIR)/usr/lib/
 	-$(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $(TARGET_DIR)/usr/lib/libQt*.so.*
 endif