Fix to make clean in libspud for CX1 (#142)

* Fix to make clean in libspud for CX1

* Update Makefile.in

Author: jmn114

Makefile.in

@@ -377,7 +377,7 @@ clean: clean-light clean-test python_clean clean-debian
 	@cd libvtkfortran; $(MAKE) clean
 	@echo "    CLEAN libjudy"
 	@cd libjudy; $(MAKE) clean >> make.log 2>&1
-ifeq (@SPUDLIB@,$(abspath lib/libspud.a))
+ifeq ($(abspath @SPUDLIB@),$(abspath lib/libspud.a))
 	@echo "    CLEAN libspud"
 	@cd libspud; $(MAKE) clean
 endif