--- Imakefile.orig	2019-09-28 11:43:48 UTC
+++ Imakefile
@@ -8,7 +8,7 @@ XMLIB = -lXm
 XCOMM
 XCOMM for Dell SVR4
 XCOMM
-EXTRA_LIBRARIES = -lc -lucb
+EXTRA_LIBRARIES = -lgnuregex
 
 SRCS = mgdiff.c rundiff.c misc.c files.c spawn.c manual.c modal.c legend.c
 OBJS = mgdiff.o rundiff.o misc.o files.o spawn.o manual.o modal.o legend.o