openbscdefines.h: Add header file to control visibility of symbols
Add the hooks/configure detection to compile everything with
-fvisibility=hidden and then make certain symbols visible. This
will be used to make parts of the API public.
There are no users yet but we should have some soon.
diff --git a/include/openbsc/Makefile.am b/include/openbsc/Makefile.am
index 27adb25..86f056d 100644
--- a/include/openbsc/Makefile.am
+++ b/include/openbsc/Makefile.am
@@ -2,4 +2,4 @@
gsm_subscriber.h linuxlist.h msgb.h select.h tlv.h gsm_04_11.h \
timer.h misdn.h chan_alloc.h telnet_interface.h paging.h \
subchan_demux.h trau_frame.h e1_input.h trau_mux.h signal.h \
- gsm_utils.h ipaccess.h rs232.h
+ gsm_utils.h ipaccess.h rs232.h openbscdefines.h