[Bug 673377] New: Fails to build when configuring using --with-pkg-config-path=...

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=673377
  GStreamer | gst-plugins-base | git

           Summary: Fails to build when configuring using
                    --with-pkg-config-path=...
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: sebras at hotmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


After cloning the gst-plugins-base upstream git repo I execute:

./configure --with-pkg-config-path=/tmp/installed/lib/pkgconfig
--prefix=/tmp/installed

which completes successfully. Trying to compile it does not however:

make install
[...]
make[4]: Entering directory `/tmp/gst-plugins-base/gst-libs/gst/pbutils'
  CC     libgstpbutils_0.11_la-gstpluginsbaseversion.lo
  CC     libgstpbutils_0.11_la-pbutils.lo
  CC     libgstpbutils_0.11_la-codec-utils.lo
  CC     libgstpbutils_0.11_la-descriptions.lo
  CC     libgstpbutils_0.11_la-encoding-profile.lo
  CC     libgstpbutils_0.11_la-encoding-target.lo
  CC     libgstpbutils_0.11_la-install-plugins.lo
  CC     libgstpbutils_0.11_la-missing-plugins.lo
  CC     libgstpbutils_0.11_la-gstdiscoverer.lo
  CC     libgstpbutils_0.11_la-gstdiscoverer-types.lo
  CC     libgstpbutils_0.11_la-pbutils-enumtypes.lo
  CCLD   libgstpbutils-0.11.la
  GEN    GstPbutils-0.11.gir
g-ir-scanner: warning: Option --strip-prefix has been deprecated;
see --identifier-prefix and --symbol-prefix.
g-ir-scanner: compile: gcc -pthread -I/tmp/installed/include/glib-2.0
-I/tmp/installed/lib/glib-2.0/include -I/tmp/installed/include/gstreamer-0.11
-I../../../gst-libs -I../../../gst-libs -I/tmp/installed/include/glib-2.0
-I/tmp/installed/lib/glib-2.0/include -I/tmp/installed/include/gstreamer-0.11
-c -o
/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11.o
/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11.c
g-ir-scanner: link: ../../../libtool --mode=link --tag=CC gcc -o
/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11
-export-dynamic
/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11.o
-L. libgstpbutils-0.11.la -lgstreamer-0.11 -L -pthread -Wl,--export-dynamic
-L/tmp/installed/lib -lgio-2.0 -lgstreamer-0.11 -lgobject-2.0 -lgmodule-2.0
-lgthread-2.0 -lrt -lglib-2.0
libtool: link: require no space between `-L' and `-pthread'
linking of temporary binary failed: Command '['../../../libtool',
'--mode=link', '--tag=CC', 'gcc', '-o',
'/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11',
'-export-dynamic',
'/tmp/gst-plugins-base/gst-libs/gst/pbutils/tmp-introspectf9rlfS/GstPbutils-0.11.o',
'-L.', 'libgstpbutils-0.11.la', '-lgstreamer-0.11', '-L', '-pthread',
'-Wl,--export-dynamic', '-L/tmp/installed/lib', '-lgio-2.0',
'-lgstreamer-0.11', '-lgobject-2.0', '-lgmodule-2.0', '-lgthread-2.0', '-lrt',
'-lglib-2.0']' returned non-zero exit status 1
make[4]: *** [GstPbutils-0.11.gir] Error 1
make[4]: Leaving directory `/tmp/gst-plugins-base/gst-libs/gst/pbutils'
make[3]: *** [install] Error 2
make[3]: Leaving directory `/tmp/gst-plugins-base/gst-libs/gst/pbutils'
make[2]: *** [install-recursive] Error 1
make[2]: Leaving directory `/tmp/gst-plugins-base/gst-libs/gst'
make[1]: *** [install-recursive] Error 1
make[1]: Leaving directory `/tmp/gst-plugins-base/gst-libs'
make: *** [install-recursive] Error 1

The reason can be found in gst-libs/gst/pbutils/Makefile.am where
the make rule for GstPbutils-x.y.gir fails to propagate PKG_CONFIG_PATH
to the sub-shells used when running pkg-config:

GstPbutils- at GST_MAJORMINOR@.gir: $(INTROSPECTION_SCANNER)
libgstpbutils- at GST_MAJORMINOR@.la
        $(AM_V_GEN)PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" \
                # I removed some lines here that would hide the problem
                --add-include-path=`$(PKG_CONFIG) --variable=girdir
gstreamer- at GST_MAJORMINOR@` \
                --library=libgstpbutils- at GST_MAJORMINOR@.la \
                --library-path=`$(PKG_CONFIG) --variable=libdir
gstreamer- at GST_MAJORMINOR@` \
                # etc...

The problem is that in the sub-shell $(PKG_CONFIG) is run PKG_CONFIG_PATH
has not been set. The same problem exists for another command a few lines down,
and in many other Makefile.am's in gst-plugins-base.

I'm intending to send a patch that preprends
PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" between the back-tick and
$(PKG_CONFIG) wherever this omission appears. Hopefully this will be attached
to the bugreport later tonight.

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