Qt: be sure to have cascading fails for commands

Author: jbkempf

contrib/src/qt/rules.mak

@@ -56,9 +56,9 @@ ifdef HAVE_CROSS_COMPILE
 	# Building Qt build tools for Xcompilation
 	cd $</include/QtCore; ln -sf $(QT_VERSION)/QtCore/private
 	cd $</qmake; $(MAKE)
-	cd $</src/tools
+	cd $</src/tools; \
 	for i in bootstrap uic rcc moc; \
-		do (cd $$i; echo $$i && ../../../bin/qmake -spec $(QT_SPEC); $(MAKE) clean; $(MAKE) CC=$(HOST)-gcc CXX=$(HOST)-g++ LINKER=$(HOST)-g++; $(MAKE) install); \
+		do (cd $$i; echo $$i && ../../../bin/qmake -spec $(QT_SPEC) && $(MAKE) clean && $(MAKE) CC=$(HOST)-gcc CXX=$(HOST)-g++ LINKER=$(HOST)-g++ && $(MAKE) install); \
 	done
 endif
 	touch $@