ipaccess-proxy: don't redefine tall_bsc_ctx

Curiously, ipaccess-proxy.c is able to define its own tall_bsc_ctx even though
the same should already be linked from gsm_data.c. Declare it extern instead
and hence use the one from gsm_data.c.

A linking error actually occured as soon as I joined gsm_data_shared.c into
gsm_data.c, which is how my attention was drawn to this. I assume that linking
didn't necessarily pull in gsm_data.c before and a separate tall_bsc_ctx was
permitted. As soon as the next commit merges those files
(Ie247bc492efb331871d970c56700595ad3f7e201), it becomes impossible to define a
second tall_bsc_ctx in ipaccess-proxy.c.

Change-Id: I9c9c8540419876696e65a690717144d497d60fb2

0 files changed, 0 insertions, 0 deletions