common.mk: use PWD with nmake

* common.mk (ext/ripper/ripper.c): move MAKEDIR to Makefile.sub.

* win32/Makefile.sub (PWD): set to $(MAKEDIR), nmake built-in macro.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48531 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

common.mk

@@ -808,7 +808,7 @@ $(REVISION_H): $(srcdir)/version.h $(srcdir)/ChangeLog $(srcdir)/tool/file2lastr
 $(srcdir)/ext/ripper/ripper.c: parse.y id.h
 	$(ECHO) generating $@
 	$(Q) $(CHDIR) $(@D) && $(exec) $(MAKE) -f depend $(MFLAGS) \
-		Q=$(Q) ECHO=$(ECHO) RM="$(RM)" VPATH="$(PWD)$(MAKEDIR)" \
+		Q=$(Q) ECHO=$(ECHO) RM="$(RM)" VPATH="$(PWD)" \
 		top_srcdir=../.. srcdir=. \
 		RUBY="$(BASERUBY)" PATH_SEPARATOR="$(PATH_SEPARATOR)"
 

win32/Makefile.sub

@@ -8,6 +8,7 @@ NULL = nul
 CHDIR = cd
 PATH_SEPARATOR = ;
 TZ =				# skip timezone tests
+PWD = $(MAKEDIR)
 
 !ifndef MFLAGS
 MFLAGS=-l