diff -ur groff-1.21/src/devices/grodvi/Makefile.sub groff-1.21-mint/src/devices/grodvi/Makefile.sub
--- groff-1.21/src/devices/grodvi/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/devices/grodvi/Makefile.sub	2011-02-06 01:52:53.000000000 +0000
@@ -1,6 +1,6 @@
 PROG=grodvi$(EXEEXT)
 MAN1=grodvi.n
-XLIBS=$(LIBDRIVER) $(LIBGROFF)
+XLIBS=$(LIBDRIVER) $(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=dvi.$(OBJEXT)
 CCSRCS=$(srcdir)/dvi.cpp
diff -ur groff-1.21/src/devices/grohtml/Makefile.sub groff-1.21-mint/src/devices/grohtml/Makefile.sub
--- groff-1.21/src/devices/grohtml/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/devices/grohtml/Makefile.sub	2011-02-06 02:00:46.000000000 +0000
@@ -1,6 +1,6 @@
 PROG=post-grohtml$(EXEEXT)
 MAN1=grohtml.n
-XLIBS=$(LIBDRIVER) $(LIBGROFF)
+XLIBS=$(LIBDRIVER) $(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=\
   post-html.$(OBJEXT) \
diff -ur groff-1.21/src/devices/grolbp/Makefile.sub groff-1.21-mint/src/devices/grolbp/Makefile.sub
--- groff-1.21/src/devices/grolbp/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/devices/grolbp/Makefile.sub	2011-02-06 02:04:38.000000000 +0000
@@ -1,6 +1,6 @@
 PROG=grolbp$(EXEEXT)
 MAN1=grolbp.n
-XLIBS=$(LIBDRIVER) $(LIBGROFF)
+XLIBS=$(LIBDRIVER) $(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=lbp.$(OBJEXT)
 CCSRCS=$(srcdir)/lbp.cpp
diff -ur groff-1.21/src/devices/grolj4/Makefile.sub groff-1.21-mint/src/devices/grolj4/Makefile.sub
--- groff-1.21/src/devices/grolj4/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/devices/grolj4/Makefile.sub	2011-02-06 01:54:18.000000000 +0000
@@ -1,7 +1,7 @@
 PROG=grolj4$(EXEEXT)
 MAN1=grolj4.n
 MAN5=lj4_font.n
-XLIBS=$(LIBDRIVER) $(LIBGROFF)
+XLIBS=$(LIBDRIVER) $(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=lj4.$(OBJEXT)
 CCSRCS=$(srcdir)/lj4.cpp
diff -ur groff-1.21/src/devices/grops/Makefile.sub groff-1.21-mint/src/devices/grops/Makefile.sub
--- groff-1.21/src/devices/grops/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/devices/grops/Makefile.sub	2011-02-06 01:50:39.000000000 +0000
@@ -1,6 +1,6 @@
 PROG=grops$(EXEEXT)
 MAN1=grops.n
-XLIBS=$(LIBDRIVER) $(LIBGROFF)
+XLIBS=$(LIBDRIVER) $(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=\
   ps.$(OBJEXT) \
diff -ur groff-1.21/src/preproc/grn/Makefile.sub groff-1.21-mint/src/preproc/grn/Makefile.sub
--- groff-1.21/src/preproc/grn/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/preproc/grn/Makefile.sub	2011-02-06 01:27:38.000000000 +0000
@@ -1,7 +1,7 @@
 PROG=grn$(EXEEXT)
 MAN1=grn.n
 MLIB=$(LIBM)
-XLIBS=$(LIBGROFF)
+XLIBS=$(LIBGROFF) $(LIBGNU)
 OBJS=\
   hdb.$(OBJEXT) \
   hpoint.$(OBJEXT) \
diff -ur groff-1.21/src/preproc/html/Makefile.sub groff-1.21-mint/src/preproc/html/Makefile.sub
--- groff-1.21/src/preproc/html/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/preproc/html/Makefile.sub	2011-02-06 01:47:56.000000000 +0000
@@ -1,7 +1,7 @@
 PROG=pre-grohtml$(EXEEXT)
 # MAN1=pre-grohtml.n
 MAN1=
-XLIBS=$(LIBGROFF)
+XLIBS=$(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=pre-html.$(OBJEXT) pushback.$(OBJEXT)
 CCSRCS=$(srcdir)/pre-html.cpp $(srcdir)/pushback.cpp
diff -ur groff-1.21/src/roff/groff/Makefile.sub groff-1.21-mint/src/roff/groff/Makefile.sub
--- groff-1.21/src/roff/groff/Makefile.sub	2010-12-31 07:33:08.000000000 +0000
+++ groff-1.21-mint/src/roff/groff/Makefile.sub	2011-02-06 00:32:30.000000000 +0000
@@ -1,6 +1,6 @@
 PROG=groff$(EXEEXT)
 MAN1=groff.n
-XLIBS=$(LIBGROFF)
+XLIBS=$(LIBGROFF) $(LIBGNU)
 MLIB=$(LIBM)
 OBJS=groff.$(OBJEXT) pipeline.$(OBJEXT)
 CCSRCS=$(srcdir)/groff.cpp