I applied this one as obvious.
* Makefile.in (etags tags TAGS): Use && instead of ;.
Index: Makefile.in
===================================================================
--- Makefile.in (revision 230269)
+++ Makefile.in (working copy)
@@ -409,7 +409,7 @@ stamp-noasandir:
.PHONY: all etags tags TAGS ls clean stage1 stage2
etags tags TAGS: etags-subdir
- cd $(srcdir); etags $(CFILES)
+ cd $(srcdir) && etags $(CFILES)
# The standalone demangler (c++filt) has been moved to binutils.
# But make this target work anyway for demangler hacking.
