automate replacing po/POTFILES.in and remove POTFILES.in from svn

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@12247 57a11ea4-9604-0410-9ed3-97b8803252fd

Makefile.am

@@ -162,13 +162,18 @@ distclean-local:
 libtool: $(LIBTOOL_DEPS)
 	$(SHELL) ./config.status --recheck
 
-pot:
+buildpo : make-gnucash-potfiles Makefile
+	${top_srcdir}/make-gnucash-potfiles > po/POTFILES.in
+
+pot: buildpo
 	rm -f intl-scm/guile-strings.c
 	make -C intl-scm
-	${top_srcdir}/make-gnucash-potfiles > po/POTFILES.in
 	rm -f po/$(PACKAGE).pot
 	make -C po $(PACKAGE).pot
 
+pot_DATA=buildpo
+potdir=po
+
 SVN = svn
 XSLTPROC = xsltproc
 ChangeLog.svn: