[Bug 794493] New: Ubuntu Trusty Build failure due to __has_builtin

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=794493

            Bug ID: 794493
           Summary: Ubuntu Trusty Build failure due to __has_builtin
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: major
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: jayeshece08 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

On Ubuntu trusty gst-plugins-good is failing to build which is caused by :
https://github.com/GStreamer/gst-plugins-good/commit/c21765e88eb38714b509927388e8d90032744f69 

#if defined(__has_builtin) && __has_builtin(__builtin_ctzll)


Snip of failure:
10:38:04,287 INFO  - libtool: link: gcc -shared -fPIC -DPIC
.libs/libgstmultifile_la-gstmultifilesink.o
.libs/libgstmultifile_la-gstmultifilesrc.o
.libs/libgstmultifile_la-gstmultifile.o
.libs/libgstmultifile_la-gstsplitfilesrc.o
.libs/libgstmultifile_la-gstsplitmuxsink.o
.libs/libgstmultifile_la-gstsplitmuxpartreader.o
.libs/libgstmultifile_la-gstsplitmuxsrc.o
.libs/libgstmultifile_la-gstsplitutils.o .libs/libgstmultifile_la-patternspec.o
-Wl,-rpath -Wl,/opt/media/install/lib -Wl,-rpath -Wl,/opt/media/install/lib
-L/opt/media/install/lib /opt/media/install/lib/libgstvideo-1.0.so
/opt/media/install/lib/libgstbase-1.0.so
/opt/media/install/lib/libgstreamer-1.0.so -lgio-2.0 -lgobject-2.0 -lglib-2.0
-pthread -pthread -pthread -pthread -Wl,-Bsymbolic-functions -pthread
-Wl,-soname -Wl,libgstmultifile.so -o .libs/libgstmultifile.so
10:38:04,289 INFO  - mv -f .deps/libgstrtp_la-gstrtpjpegdepay.Tpo
.deps/libgstrtp_la-gstrtpjpegdepay.Plo
10:38:04,289 INFO  - mv -f .deps/libgstrtp_la-gstrtpmp4vpay.Tpo
.deps/libgstrtp_la-gstrtpmp4vpay.Plo
10:38:04,290 INFO  - mv -f .deps/libgstrtp_la-gstrtpmp4gdepay.Tpo
.deps/libgstrtp_la-gstrtpmp4gdepay.Plo
10:38:04,291 INFO  - gstrtpulpfecdec.c:281:44: error: missing binary operator
before token "("
10:38:04,291 INFO  - #if defined(__has_builtin) &&
__has_builtin(__builtin_ctzll)
10:38:04,291 INFO  - ^
10:38:04,291 INFO  - mv -f .deps/libgstrtp_la-gstrtph264depay.Tpo
.deps/libgstrtp_la-gstrtph264depay.Plo
10:38:04,293 INFO  - libtool: link: gcc -shared -fPIC -DPIC
.libs/libgstaudiofx_la-audiofx.o .libs/libgstaudiofx_la-audiopanorama.o
.libs/libgstaudiofx_la-audioinvert.o .libs/libgstaudiofx_la-audioamplify.o
.libs/libgstaudiofx_la-audiodynamic.o .libs/libgstaudiofx_la-audiokaraoke.o
.libs/libgstaudiofx_la-audiofxbaseiirfilter.o
.libs/libgstaudiofx_la-audiocheblimit.o .libs/libgstaudiofx_la-audiochebband.o
.libs/libgstaudiofx_la-audioiirfilter.o
.libs/libgstaudiofx_la-audiofxbasefirfilter.o
.libs/libgstaudiofx_la-audiowsincband.o
.libs/libgstaudiofx_la-audiowsinclimit.o
.libs/libgstaudiofx_la-audiofirfilter.o .libs/libgstaudiofx_la-audioecho.o
.libs/libgstaudiofx_la-gstscaletempo.o .libs/libgstaudiofx_la-tmp-orc.o
-Wl,-rpath -Wl,/opt/media/install/lib -Wl,-rpath -Wl,/opt/media/install/lib
-L/opt/media/install/lib /opt/media/install/lib/libgstbase-1.0.so
/opt/media/install/lib/libgstreamer-1.0.so -lgobject-2.0 -lglib-2.0
/opt/media/install/lib/libgstaudio-1.0.so
/opt/media/install/lib/libgstfft-1.0.so -lorc-0.4 -lm -pthread ...
10:38:04,293 INFO  - libtool: link: ( cd ".libs" && rm -f "libgstvideobox.la"
&& ln -s "../libgstvideobox.la" "libgstvideobox.la" )
10:38:04,298 INFO  - make[4]: Leaving directory
`/opt/media/build/gst-plugins-good/gst/videobox'
10:38:04,298 INFO  - make[3]: Leaving directory
`/opt/media/build/gst-plugins-good/gst/videobox'
10:38:04,299 INFO  - mv -f .deps/libgstrtp_la-gstrtpspeexpay.Tpo
.deps/libgstrtp_la-gstrtpspeexpay.Plo
10:38:04,300 INFO  - make[3]: *** [libgstrtp_la-gstrtpulpfecdec.lo] Error 1
10:38:04,300 INFO  - make[3]: *** Waiting for unfinished jobs....

As per my understanding __has_builtin is a non-standard thing for GCC included
in Ubuntu Trusty.

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