tree 7164d52de2e7166795084efabdc91a061226e796
parent 775eea233133157e7b0dc77fb6257052e7f147a3
author Pau Espin Pedrol <pespin@sysmocom.de> 1532738772 +0200
committer Pau Espin Pedrol <pespin@sysmocom.de> 1534780469 +0200

configure: Find correct libgsm's gsm.h header

Some distributions (archlinux) or versions of libgsm install gsm.h in
/usr/include/gsm/gsm.h

Since libgsm doesn't come with a pkfconfig, let's first check if gsm.h
and take the correct path in the build setup.

Backport from osmo-mgw.git

Change-Id: I07d3c03903e0d4bb80e843c7ed917a27b791ea53