Actually, QtGstreamer is not referencing libxml directly. The error happens because QtGstreamer is using gstreamer, which in turn is using libxml. So QtGstreamer finds gstreamer but not libxml headers. I can't modify gstconfig.h since it belongs to gstreamer. There must be a way to tell QtGstreamer where to look for libxml. It's a shame that it is ignoring my request in CMAKE_INCLUDE_PATH. []'s -- Karl Phillip <div class="gmail_quote">On Fri, Dec 16, 2011 at 5:54 PM, Mailing List SVR <<a href="mailto:lists@svrinformatica.it">lists@svrinformatica.it</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor="#FFFFFF" text="#000000"> Il 16/12/2011 18:56, Karl Phillip ha scritto: <div><div class="h5"><blockquote type="cite"> Hi all, I'm trying to compile QtGstreamer using VS2008. I already managed to compile Gstreamer, and have everything else is properly installed (ossbuild, qt, boost, byson/flexm automoc, cmake). I've made a few tests with gst-launch and also succeeded writing a "Hello World" Gstreamer to play audio/videos and everything seems fine. I'm following the instructions from <a href="http://gstreamer.freedesktop.org/wiki/QtGStreamer/BuildingOnWindows" target="_blank">http://gstreamer.freedesktop.org/wiki/QtGStreamer/BuildingOnWindows</a> Looking at the instructions at section "Building QtGStreamer", after setting the PATH cmake is being configured with: cmake -G "Visual Studio 9 2008" -DCMAKE_INSTALL_PREFIX="C:\qt-gstreamer\install" ^ -DBOOST_ROOT="C:\boost_1_45_0" -DCMAKE_INCLUDE_PATH="C:\ossbuild\Shared\MSVC\Include;C:\ossbuild\Shared\Build\Windows\Win32\include\libxml2" ^ -DCMAKE_PREFIX_PATH="C:\ossbuild\Build\Windows\Win32\Release;C:\ossbuild\Shared\Build\Windows\Win32;C:\automoc\install" .. This outputs: ===================================================================================== -- Check for working C compiler using: Visual Studio 9 2008 -- Check for working C compiler using: Visual Studio 9 2008 -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler using: Visual Studio 9 2008 -- Check for working CXX compiler using: Visual Studio 9 2008 -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Looking for Q_WS_X11 -- Looking for Q_WS_X11 - not found. -- Looking for Q_WS_WIN -- Looking for Q_WS_WIN - found -- Looking for Q_WS_QWS -- Looking for Q_WS_QWS - not found. -- Looking for Q_WS_MAC -- Looking for Q_WS_MAC - not found. -- Found Qt-Version 4.7.4 (using C:/Qt/qt-src/qt/bin/qmake.exe) -- Boost version: 1.45.0 -- checking for module 'gstreamer-0.10' -- package 'gstreamer-0.10' not found -- checking for module 'gstreamer-base-0.10' -- package 'gstreamer-base-0.10' not found -- Found GSTREAMER_BASE_LIBRARY: C:/ossbuild/Build/Windows/Win32/Release/lib/gstbase-0.10.lib -- Found GSTREAMER_BASE_INCLUDE_DIR: C:/ossbuild/Build/Windows/Win32/Release/include/gstreamer-0.10 -- Performing Test GSTREAMER_VERSION_COMPATIBLE -- Performing Test GSTREAMER_VERSION_COMPATIBLE - Success -- Found GStreamer: C:/ossbuild/Build/Windows/Win32/Release/lib/gstreamer-0.10.lib -- checking for module 'gstreamer-plugins-base-0.10' -- package 'gstreamer-plugins-base-0.10' not found -- checking for module 'gstreamer-app-0.10' -- package 'gstreamer-app-0.10' not found -- Found GSTREAMER_APP_LIBRARY: C:/ossbuild/Build/Windows/Win32/Release/lib/gstapp-0.10.lib -- Found GSTREAMER_APP_INCLUDE_DIR: C:/ossbuild/Build/Windows/Win32/Release/include/gstreamer-0.10 -- checking for module 'gstreamer-interfaces-0.10' -- package 'gstreamer-interfaces-0.10' not found -- Found GSTREAMER_INTERFACES_LIBRARY: C:/ossbuild/Build/Windows/Win32/Release/lib/gstinterfaces-0.10.lib -- Found GSTREAMER_INTERFACES_INCLUDE_DIR: C:/ossbuild/Build/Windows/Win32/Release/include/gstreamer-0.10 -- checking for module 'gstreamer-video-0.10' -- package 'gstreamer-video-0.10' not found -- Found GSTREAMER_VIDEO_LIBRARY: C:/ossbuild/Build/Windows/Win32/Release/lib/gstvideo-0.10.lib -- Found GSTREAMER_VIDEO_INCLUDE_DIR: C:/ossbuild/Build/Windows/Win32/Release/include/gstreamer-0.10 -- Found GStreamerPluginsBase: TRUE -- Found GLIB2: C:/ossbuild/Shared/Build/Windows/Win32/lib/glib-2.0.lib -- Found GObject: C:/ossbuild/Shared/Build/Windows/Win32/include/glib-2.0 -- Found FLEX: C:/GnuWin32/bin/flex.exe -- Found BISON: C:/GnuWin32/bin/bison.exe -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) ----------------------------------------------------------------------------- -- The following external packages were located on your system. -- This installation will have the extra features provided by these packages. ----------------------------------------------------------------------------- * Qt 4 - Required for building everything * Boost - Required for building QtGLib * Automoc 4 - Required for the build system to generate moc files properly * GStreamer - Required to build QtGStreamer * GStreamer base library - Used for building the qwidgetvideosink element * GStreamer app library - Required to build QtGStreamerUtils * GStreamer interfaces library - Required to build QtGStreamer * GStreamer video library - Used for building the qwidgetvideosink element * GLib - Required to build QtGLib * GObject - Required to build QtGLib * Flex - Required to build codegen, a helper code generator * Bison - Required to build codegen, a helper code generator ----------------------------------------------------------------------------- -- The following OPTIONAL packages could NOT be located on your system. -- Consider installing them to enable more features from this software. ----------------------------------------------------------------------------- * Doxygen <<a href="http://www.doxygen.org/" target="_blank">http://www.doxygen.org/</a>> Used to generate the API documentation ----------------------------------------------------------------------------- -- Configuring done -- Generating done -- Build files have been written to: C:/qt-gstreamer/build ===================================================================================== I have to use Boost 1.45.0 as suggested by the site because 1.48.0 gave me compiling erros inside Boost. Anyway, if you notice the variable CMAKE_INCLUDE_PATH you'll see that the include path for libxml2 is also being added. That's because I'm trying to fix the errors which are all related to: 9>C:\ossbuild\Build\Windows\Win32\Release\include\gstreamer-0.10\gst/gstconfig.h(131) : fatal error C1083: Cannot open include file: 'libxml/parser.h': No such file or directory Now, I know for sure the path "C:\ossbuild\Shared\Build\Windows\Win32\include\libxml2\libxml\parser.h" is valid. </blockquote> </div></div> remove the reference to libxml from gstconfig.h, comment out line 131, qtgstreamer not need libxml, Nicola <blockquote type="cite"><div class="im"> I'm not sure how to fix this problem. Hopefully someone can shed a light on this. Thanks, -- Karl Phillip <fieldset></fieldset> </div><pre>_______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </pre> </blockquote> </div> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div>