[Bug 689583] New: gst-rtsp-server: docs fails to build when gcov is enabled...

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=689583
  GStreamer | gst-rtsp-server | git

           Summary: gst-rtsp-server: docs fails to build when gcov is
                    enabled...
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-rtsp-server
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: sebras at hotmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


If (having already build gstreamer from git and
setup my paths) I checkout gst-rtsp-server and run:

./autogen.sh --prefix=/tmp/prefix --enable-gcov
make -j10 install

then I am faced with this puzzling error message:

[...]
  DOC   Introspecting gobjects
.libs/gst-rtsp-server-scan.o: In function
`_GLOBAL__sub_I_65535_0_gst_rtsp_server_scan.c':
/home/sebras/src/gst/gst-rtsp-server/docs/libs/gst-rtsp-server-scan.c:1199:
undefined reference to `__gcov_init'
.libs/gst-rtsp-server-scan.o:(.data.rel+0x20): undefined reference to
`__gcov_merge_add'
collect2: error: ld returned 1 exit status

This is of course due to --enable-gcov being set.

--enable-gcov will in common/m4/gst-args.m4 cause
GCOV_CFLAGS and GCOV_LIBS to be set. GCOV_CFLAGS 
will in configure.ac be used in GST_CFLAGS. In
docs/libs/Makefile.am GTKDOC_CFLAGS uses GST_CFLAGS.

GCOV_LIBS is not included anywhere, so the compiler
is instructed to use gcov, but the linker is not.
The obvious fix is to add this to GTKDOC_LDFLAGS in
docs/libs/Makefile.am as the attached patch does.

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