[Bug 754875] New: configure.ac: no socketpair() check causes unresolved reference

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=754875

            Bug ID: 754875
           Summary: configure.ac: no socketpair() check causes unresolved
                    reference
    Classification: Platform
           Product: GStreamer
           Version: 1.5.90
                OS: Neutrino
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: d_garry at mail.ru
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Package version: gstreamer-1.5.90.tar.xz
OS: QNX Neutrino 6.5.0

Problem description:

libgstreamer-1.0.so: undefined reference to `socketpair'

Reason:
libgstreamer-1.0.so (gst/gstpoll.c:568) uses socketpair() function which is in
libsocket library and not in libc in QNX Neutrino (same problem should probably
have place in Solaris OS). And, by default, build process doesn't use -lsocket
option. As a result, libgstreamer-1.0.so.590 lacks libsocket dependency, and
all the following linkage attempts (e.g. building gst-plugins-good) come to
'undefined reference' result.

Possible solution (configure.ac):

dnl check for socketpair()
AC_CHECK_FUNC(socketpair, [], [
  AC_CHECK_LIB(socket, socketpair, [
    LIBS="$LIBS -lsocket"
  ]) 
])

But, unfortunately, seems that libtool doesn't use LIBS variable when building
libgstreamer-1.0.so library. I've also tried to use GST_ALL_LIBS="$GST_ALL_LIBS
-lsocket" same manner (although it doesn't seem to look like a good solution),
but with no success.

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