diff --git a/recipes-isdn/libgsm/libgsm-1.0.13/01_makefile.patch b/recipes-isdn/libgsm/libgsm-1.0.13/01_makefile.patch
new file mode 100644
index 0000000..947db37
--- /dev/null
+++ b/recipes-isdn/libgsm/libgsm-1.0.13/01_makefile.patch
@@ -0,0 +1,71 @@
+diff -urNad libgsm-1.0.12~/Makefile libgsm-1.0.12/Makefile
+--- libgsm-1.0.12~/Makefile	2007-11-01 15:37:52.000000000 +0100
++++ libgsm-1.0.12/Makefile	2007-11-01 15:43:06.000000000 +0100
+@@ -96,7 +96,7 @@
+ #  Other tools
+ 
+ SHELL		= /bin/sh
+-LN		= ln
++LN		= ln -s
+ BASENAME 	= basename
+ AR		= ar
+ ARFLAGS		= cr
+@@ -140,6 +140,7 @@
+ # Targets
+ 
+ LIBGSM	= $(LIB)/libgsm.a
++LIBGSMSO= $(LIB)/libgsm.so
+ 
+ TOAST	= $(BIN)/toast
+ UNTOAST	= $(BIN)/untoast
+@@ -279,7 +280,7 @@
+ 
+ # Target rules
+ 
+-all:		$(LIBGSM) $(TOAST) $(TCAT) $(UNTOAST)
++all:		$(LIBGSM) $(LIBGSMSO) $(TOAST) $(TCAT) $(UNTOAST)
+ 		@-echo $(ROOT): Done.
+ 
+ tst:		$(TST)/lin2cod $(TST)/cod2lin $(TOAST) $(TST)/test-result
+@@ -299,6 +300,11 @@
+ 
+ # The basic API: libgsm
+ 
++$(LIBGSMSO):	$(LIB) $(GSM_OBJECTS)
++		$(LD) -o $@.1.0.12 -shared -Xlinker -soname -Xlinker libgsm.so.1 $(GSM_OBJECTS) -lc $(LDFLAGS)
++		ln -fs libgsm.so.1.0.12 lib/libgsm.so.1
++		ln -fs libgsm.so.1.0.12 lib/libgsm.so
++
+ $(LIBGSM):	$(LIB) $(GSM_OBJECTS)
+ 		-rm $(RMFLAGS) $(LIBGSM)
+ 		$(AR) $(ARFLAGS) $(LIBGSM) $(GSM_OBJECTS)
+@@ -308,15 +314,15 @@
+ # Toast, Untoast and Tcat -- the compress-like frontends to gsm.
+ 
+ $(TOAST):	$(BIN) $(TOAST_OBJECTS) $(LIBGSM)
+-		$(LD) $(LFLAGS) -o $(TOAST) $(TOAST_OBJECTS) $(LIBGSM) $(LDLIB)
++		$(LD) $(LFLAGS) -o $(TOAST) $(TOAST_OBJECTS) $(LIBGSMSO) $(LDLIB)
+ 
+ $(UNTOAST):	$(BIN) $(TOAST)
+ 		-rm $(RMFLAGS) $(UNTOAST)
+-		$(LN) $(TOAST) $(UNTOAST)
++		$(LN) toast $(UNTOAST)
+ 
+ $(TCAT):	$(BIN) $(TOAST)
+ 		-rm $(RMFLAGS) $(TCAT)
+-		$(LN) $(TOAST) $(TCAT)
++		$(LN) toast $(TCAT)
+ 
+ 
+ # The local bin and lib directories
+@@ -426,7 +432,9 @@
+ 
+ clean:	semi-clean
+ 		-rm $(RMFLAGS) $(LIBGSM) $(ADDTST)/add		\
+-			$(TOAST) $(TCAT) $(UNTOAST)	\
++			$(LIBGSMSO) $(LIB)/libgsm.so.1.0.12	\
++			$(LIB)libgsm.so.1			\
++			$(TOAST) $(TCAT) $(UNTOAST)		\
+ 			$(ROOT)/gsm-1.0.tar.Z
+ 
+