[Samba] Trouble cross compiling samba 4.15.5 for arm32. Problem with samba-bgqd.c

[Berto Furth]

Hi Samba people,

I have been able to successfully cross compile samba 4.14.12 for arm32 however if I try to cross compile samba 4.15.5 I get an error as follows in the make stage. The issue seems to be with newly introduced source file "source3/printing/samba-bgqd.c"

../../source3/printing/samba-bgqd.c: In function ‘main’:
../../source3/printing/samba-bgqd.c:340:28: error: ‘SIGPIPE’ undeclared (first use in this function); did you mean ‘SNDPIPE’?
  340 |         BlockSignals(true, SIGPIPE);
      |                            ^~~~~~~
      |                            SNDPIPE
../../source3/printing/samba-bgqd.c:340:28: note: each undeclared identifier is reported only once for each function it appears in
In file included from ../../source3/locking/share_mode_lock.h:20,
                 from ../../source3/printing/samba-bgqd.c:21:
../../source3/printing/samba-bgqd.c:384:28: error: ‘SIGTERM’ undeclared (first use in this function)
  384 |                 ev, frame, SIGTERM, 0, bgqd_sig_term_handler, &done);
      |                            ^~~~~~~
../../lib/tevent/tevent.h:412:41: note: in definition of macro ‘tevent_add_signal’
  412 |         _tevent_add_signal(ev, mem_ctx, signum, sa_flags, handler, private_data, \
      |                                         ^~~~~~


The problem can be fixed by adding the following include directive to "source3/printing/samba-bgqd.c"

    #include <signal.h>

However, I wonder if there could be something else I need to check. Any advice?

I'm using gcc 11.2.0 and cross compiling using OpenSUSE Tumbleweed on both PC and Raspberry Pi.

I have no problems doing a native build of samba 4.15.5 on either of those build hosts.

Thanks very much for your help.

Berto.