Index: auto/output/Makefile
===================================================================
--- auto/output/Makefile	(revision 1e572e12c518a2f97f350cb98dcfe5c90e673e48)
+++ auto/output/Makefile	(revision ac9a049dc70613b4b6ef600978b199a291eed2f0)
@@ -46,5 +46,5 @@
 VPATH = ./src
 
-PROGRAMS = tok sen fla gph kot unfla
+PROGRAMS = tok sen fla gph kot unfla grp
 
 TOK_OBJ_FILES = tok.o tok_cmdline.o
@@ -77,4 +77,7 @@
 UNFLA_SH_FILES = unfla.sh
 unfla: \$(UNFLA_SH_FILES)
+
+GRP_PERL_FILES = grp.pl
+grp: \$(GRP_PERL_FILES)
 
 CONFIG_FILES = src/config.h Makefile