[Bug 759713] New: -Bsymbolic configure check doesn't work on FreeBSD.

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=759713

            Bug ID: 759713
           Summary: -Bsymbolic configure check doesn't work on FreeBSD.
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: kwm at FreeBSD.org
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 317713
  --> https://bugzilla.gnome.org/attachment.cgi?id=317713&action=edit
Update -Bysymbolic check with the glib version

The current test for -Bsymbolic in configure doesn't work on FreeBSD. Our
default compiler is clang. I checked that with the patch the check works with
both gcc and clang.

A quick check showed that the following projects also use this code,
gst-plugins-base, gst-rtsp-server and orc. So this patch should be applied too.
I think I check all the gstreamer projects, but a double check would be great.

--------------
checking for -Bsymbolic-functions linker flag... no

configure:26401: checking for -Bsymbolic-functions linker flag
configure:26415: cc -o conftest -O2 -pipe  -O2 -Wno-format -fstack-protector
-fno-strict-aliasing -I/usr/local/include -Wl,-Bsymbolic-functions conftest.c 
>&5
conftest.c:92:17: error: function definition is not allowed here
int main (void) { return 0; }
                ^
1 error generated.
configure:26415: $? = 1
configure: failed program
--------------

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