import gsup_client.c as new libosmo-gsup-client

This imports the code from osmo-msc 6afef893e17bce67e4d4119acd34d480ed03ba77
with minimal changes to make it compile.  Symbol renaming ot osmo_
prefix is done separately in a follow-up patch to have a as-clean-as-possible
import first.

Requires: libosmocore.git Change-Id Ie36729996abd30b84d1c30a09f62ebc6a9794950
Change-Id: Ief50054ad135551625b684ed8a0486f7af0b2940
diff --git a/libosmo-gsup-client.pc.in b/libosmo-gsup-client.pc.in
new file mode 100644
index 0000000..4210a4a
--- /dev/null
+++ b/libosmo-gsup-client.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Osmocom GSUP and OAP Client Library
+Description: C Utility Library
+Version: @VERSION@
+Libs: -L${libdir} @TALLOC_LIBS@ -losmogsm -losmocore
+Cflags: -I${includedir}/
+