Adding -fPIC isn't necessary of xeno-config is set correctly. Backed out changeset b9f1fcda7d30
--- a/configure Thu Jan 24 13:49:40 2019 +0100
+++ b/configure Thu Jan 24 13:53:01 2019 +0100
@@ -483,7 +483,7 @@
if [ "$SUB_TIMERS_DRIVER" = "xeno" ]; then
SUB_EXE_CFLAGS=$SUB_EXE_CFLAGS\ `$XENO_CONFIG --skin=alchemy --skin=rtdm --ldflags`\
- SUB_PROG_CFLAGS=$SUB_PROG_CFLAGS\ -fPIC\ -DUSE_XENO\ `$XENO_CONFIG --skin=alchemy --skin=rtdm --cflags`
+ SUB_PROG_CFLAGS=$SUB_PROG_CFLAGS\ -DUSE_XENO\ `$XENO_CONFIG --skin=alchemy --skin=rtdm --cflags`
RTCAN_SOCKET=1
fi