Merge remote-tracking branch 'origin/maint'

* origin/maint:
  maint: address syntax-check errors.
  tests: use valgrind where appropriate
  tests: use valgrind where appropriate
  tests: don't expect $EGREP to support -w
  tests: more possible error compiler messages for "#error"

Conflicts:
	cfg.mk
	tests/headers.at

po/POTFILES.in

@@ -9,6 +9,7 @@ src/main.c
 src/muscle-tab.c
 src/parse-gram.y
 src/print.c
+src/print_graph.c
 src/reader.c
 src/reduce.c
 src/scan-code.l