diff --git a/src/spicelib/parser/Makefile.am b/src/spicelib/parser/Makefile.am
index 5ef6e38ca..e52524aae 100644
--- a/src/spicelib/parser/Makefile.am
+++ b/src/spicelib/parser/Makefile.am
@@ -21,7 +21,6 @@ libinp_la_SOURCES = \
 		inp2k.c		\
 		inp2l.c		\
 		inp2m.c		\
-		inp2n.c		\
 		inp2o.c		\
 		inp2p.c		\
 		inp2q.c		\
@@ -71,6 +70,11 @@ libinp_la_SOURCES = \
 		sperror.c	\
 		inpxx.h
 
+		
+if OSDI_WANTED
+libinp_la_SOURCES += inp2n.c
+endif
+
 AM_CPPFLAGS = @AM_CPPFLAGS@ -I$(top_srcdir)/src/include -I$(top_srcdir)/src/frontend
 AM_CFLAGS = $(STATIC)
 AM_YFLAGS = -d
diff --git a/src/spicelib/parser/inpxx.h b/src/spicelib/parser/inpxx.h
index 81e9355db..818def297 100644
--- a/src/spicelib/parser/inpxx.h
+++ b/src/spicelib/parser/inpxx.h
@@ -20,7 +20,9 @@ void INP2J(CKTcircuit *ckt, INPtables *tab, struct card *current);
 void INP2K(CKTcircuit *ckt, INPtables *tab, struct card *current);
 void INP2L(CKTcircuit *ckt, INPtables *tab, struct card *current);
 void INP2M(CKTcircuit *ckt, INPtables *tab, struct card *current);
+#ifdef OSDI
 void INP2N(CKTcircuit *ckt, INPtables *tab, struct card *current);
+#endif
 void INP2O(CKTcircuit *ckt, INPtables *tab, struct card *current);
 void INP2P(CKTcircuit *ckt, INPtables *tab, struct card *current);
 void INP2Q(CKTcircuit *ckt, INPtables *tab, struct card *current, CKTnode *gnode);