gsm: The LAPDm prim/structs changed, increment current version
diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index 59d4234..fa2265a 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -1,6 +1,6 @@
# This is _NOT_ the library release version, it's an API version.
# Please read Chapter 6 "Library interface versions" of the libtool documentation before making any modification
-LIBVERSION=3:0:0
+LIBVERSION=4:0:0
AM_CFLAGS = -Wall ${GCC_FVISIBILITY_HIDDEN} $(all_includes) -I$(top_srcdir)/include