- (cd configtool/src && $(MAKE) clean)
- (cd emulator/src && $(MAKE) clean)
- (cd helpview/src && $(MAKE) clean)
- (cd tex2rtf/src && $(MAKE) clean)
- (cd HelpGen && $(MAKE) clean)
+ -(cd emulator/src && $(MAKE) clean)
+ -(cd helpview/src && $(MAKE) clean)
+ -(cd ifacecheck/src && $(MAKE) clean)