[Bug 695658] New: build: Link libgstrtsp-1.0.so to libm for pow()

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=695658
  GStreamer | gst-plugins-base | unspecified

           Summary: build: Link libgstrtsp-1.0.so to libm for pow()
    Classification: Platform
           Product: GStreamer
           Version: unspecified
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: emanuele.aina at collabora.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Building currently fail with the following error due to a missing -lm reference
on libgstrtsp-1.0.so:

libtool: link: gcc -o
/jhbuild/src/gst-plugins-base/gst-libs/gst/rtsp/tmp-introspectp5B38y/.libs/GstRtsp-1.0
/jhbuild/src/gst-plugins-base/gst-libs/gst/rtsp/tmp-introspectp5B38y/GstRtsp-1.0.o
-Wl,--export-dynamic -pthread -Wl,--export-dynamic  -L/jhbuild/build/lib64 -L.
./.libs/libgstrtsp-1.0.so
/jhbuild/src/gst-plugins-base/gst-libs/gst/sdp/.libs/libgstsdp-1.0.so
-lgmodule-2.0 -lgio-2.0 -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0 -pthread
-Wl,-rpath -Wl,/jhbuild/build/lib64
./.libs/libgstrtsp-1.0.so: error: undefined reference to 'pow'
collect2: error: ld returned 1 exit status
linking of temporary binary failed: Command '['../../../libtool',
'--mode=link', '--tag=CC', 'gcc', '-o',
'/jhbuild/src/gst-plugins-base/gst-libs/gst/rtsp/tmp-introspectp5B38y/GstRtsp-1.0',
'-export-dynamic', '-L/jhbuild/build/lib64',
'/jhbuild/src/gst-plugins-base/gst-libs/gst/rtsp/tmp-introspectp5B38y/GstRtsp-1.0.o',
'-L.', 'libgstrtsp-1.0.la',
'/jhbuild/src/gst-plugins-base/gst-libs/gst/sdp/libgstsdp-1.0.la',
'-Wl,--export-dynamic', '-pthread', '-L/jhbuild/build/lib64', '-lgmodule-2.0',
'-lgio-2.0', '-lgstreamer-1.0', '-lgobject-2.0', '-lglib-2.0']' returned
non-zero exit status 1
make[1]: *** [GstRtsp-1.0.gir] Error 1

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