[asterisk-users] Problem compiling res_fax_spandsp.c on Debian server.

[Ernie Dunbar]

Hi everyone.

We have an Asterisk server running Debian Squeeze, with Asterisk 
v1.8.13.1 (basically, the Debian Stable version for Squeeze, but with 
some minor source code changes specific to our site). We're trying to 
upgrade to 11.13.1 (The Debian Stable version for Jessie), but I've run 
into a snag when compiling res_fax_spandsp (and yes, we really need that 
module). The old version has been working, and was compiled on this same 
machine with this same operating system. This is the error I get when 
doing the make:

    [CC] res_fax_spandsp.c -> res_fax_spandsp.o
res_fax_spandsp.c: In function ‘spandsp_v21_new’:
res_fax_spandsp.c:487:52: error: 
‘MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE’ undeclared (first use in this 
function)
res_fax_spandsp.c:487:52: note: each undeclared identifier is reported 
only once for each function it appears in
res_fax_spandsp.c: In function ‘spandsp_fax_gateway_start’:
res_fax_spandsp.c:819:36: error: ‘t38_gateway_state_t’ has no member 
named ‘t38’
res_fax_spandsp.c:870:43: error: ‘t38_gateway_state_t’ has no member 
named ‘t38’
res_fax_spandsp.c:870:83: error: ‘t38_gateway_state_t’ has no member 
named ‘t38’
make[1]: *** [res_fax_spandsp.o] Error 1
make: *** [res] Error 2

It sounds like I need a library that doesn't exist on this system, but I 
can't find anything in the includes for this file that would suggest 
that something is missing.