Hi All,

I'm on OS X 10.10.1
I've Qt5.4.1 with path ~/Qt5.4.1/5.4/clang_64.
I've downloaded qt-gstreamer-1.2 tarball from here:
http://gstreamer.freedesktop.org/src/qt-gstreamer/
All dependencies are installed with Homebrew

Trying to build and install qt-gstreamer-1.2 with the commands below I
get erros (log is attached at the end):
  cmake .. -DQT_VERSION=5 -DCMAKE_PREFIX_PATH=~/Qt5.4.1/5.4/clang_64/
  make

The first one comes from unknown type name of QTGLIB_EXPORT.  But is
not the source of the problem.
The second one comes from
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/
that is Xcode headers directory. The error is: no member named
'find_first_of' in namespace 'std::__1'. It seems like Xcode use
libstdc++ by default instead of libc++.

I tried to change compiler adding the flags below but it doesn't
works, same errors:
  -DCMAKE_C_COMPILER=/usr/bin/gcc -DCMAKE_CXX_COMPILER=/usr/bin/g++
  -DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang++

I tried to force Xcode to use libc++ adding the flag below but it
doesn't works, same errors :
  -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS -stdlib=libc++"

Then I tried to use other headers Library adding the flag below but it
doesn't works:
  -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS} -I/usr/include/c++/4.2.1/"

Finally what solve my problem is to use ordinary clang Library adding this flag:
  -DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS} -I/Library/Developer/CommandLineTools/usr/include/c++/v1"

Apparently there have been some changes in Xcode headers. Do you know
how to force Xcode to use good headers (i.e. libc++ instead of
libstdc++) from cmake?



Best Regards,


Manuel Imperiale





Compilation errors log:

Last login: Wed Mar 25 03:19:14 on ttys000
manous-MBP:build manou$ cmake .. -DQT_VERSION=5 -DCMAKE_PREFIX_PATH=~/Qt5.4.1/5.4/clang_64
-- The C compiler identification is AppleClang 6.0.0.6000057
-- The CXX compiler identification is AppleClang 6.0.0.6000057
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Using Qt5 (min: 5.0.0)
-- Found Qt4or5: 1  found components:  Core Gui Widgets OpenGL Quick1 Quick2 Qml Test
-- Boost version: 1.57.0
-- Found PkgConfig: /usr/local/bin/pkg-config (found version "0.28")
-- checking for module 'gstreamer-1.0'
--   found gstreamer-1.0, version 1.4.5
-- checking for module 'gstreamer-base-1.0'
--   found gstreamer-base-1.0, version 1.4.5
-- Found GSTREAMER_BASE_LIBRARY: /usr/local/Cellar/gstreamer/1.4.5/lib/libgstbase-1.0.dylib
-- Found GSTREAMER_BASE_INCLUDE_DIR: /usr/local/Cellar/gstreamer/1.4.5/include/gstreamer-1.0
-- Found GStreamer: /usr/local/Cellar/gstreamer/1.4.5/lib/libgstreamer-1.0.dylib (Required is at least version "1.0.0")
-- checking for module 'gstreamer-plugins-base-1.0'
--   found gstreamer-plugins-base-1.0, version 1.4.5
-- checking for module 'gstreamer-app-1.0'
--   found gstreamer-app-1.0, version 1.4.5
-- Found GSTREAMER_APP_LIBRARY: /usr/local/Cellar/gst-plugins-base/1.4.5/lib/libgstapp-1.0.dylib
-- Found GSTREAMER_APP_INCLUDE_DIR: /usr/local/Cellar/gst-plugins-base/1.4.5/include/gstreamer-1.0
-- checking for module 'gstreamer-audio-1.0'
--   found gstreamer-audio-1.0, version 1.4.5
-- Found GSTREAMER_AUDIO_LIBRARY: /usr/local/Cellar/gst-plugins-base/1.4.5/lib/libgstaudio-1.0.dylib
-- Found GSTREAMER_AUDIO_INCLUDE_DIR: /usr/local/Cellar/gst-plugins-base/1.4.5/include/gstreamer-1.0
-- checking for module 'gstreamer-video-1.0'
--   found gstreamer-video-1.0, version 1.4.5
-- Found GSTREAMER_VIDEO_LIBRARY: /usr/local/Cellar/gst-plugins-base/1.4.5/lib/libgstvideo-1.0.dylib
-- Found GSTREAMER_VIDEO_INCLUDE_DIR: /usr/local/Cellar/gst-plugins-base/1.4.5/include/gstreamer-1.0
-- checking for module 'gstreamer-pbutils-1.0'
--   found gstreamer-pbutils-1.0, version 1.4.5
-- Found GSTREAMER_PBUTILS_LIBRARY: /usr/local/Cellar/gst-plugins-base/1.4.5/lib/libgstpbutils-1.0.dylib
-- Found GSTREAMER_PBUTILS_INCLUDE_DIR: /usr/local/Cellar/gst-plugins-base/1.4.5/include/gstreamer-1.0
-- Found GStreamerPluginsBase: TRUE (Required is at least version "1.0.0")
-- checking for module 'glib-2.0'
--   found glib-2.0, version 2.42.2
-- Found GLIB2: /usr/local/Cellar/glib/2.42.2/lib/libglib-2.0.dylib  
-- checking for module 'gobject-2.0'
--   found gobject-2.0, version 2.42.2
-- Found GObject: /usr/local/Cellar/glib/2.42.2/include/glib-2.0  
-- Performing Test USE_OPENGLES
-- Performing Test USE_OPENGLES - Failed
-- Found OpenGL: /System/Library/Frameworks/OpenGL.framework  
CMake Warning (dev) at examples/CMakeLists.txt:13 (get_target_property):
  Policy CMP0045 is not set: Error on non-existent target in
  get_target_property.  Run "cmake --help-policy CMP0045" for policy details.
  Use the cmake_policy command to set the policy and suppress this warning.
 
  get_target_property() called with non-existent target "examples_distcheck".
Call Stack (most recent call first):
  examples/CMakeLists.txt:22 (example_distcheck)
This warning is for project developers.  Use -Wno-dev to suppress it.
 
-- Found Doxygen: /usr/local/bin/doxygen (found version "1.8.9.1")
-- Found DOXYFILE_IN: /Users/manou/soundLab/qt-gstreamer-1.2.0/Doxyfile.in  
CMake Warning (dev) at cmake/modules/UseDoxygen.cmake:102 (get_target_property):
  Policy CMP0045 is not set: Error on non-existent target in
  get_target_property.  Run "cmake --help-policy CMP0045" for policy details.
  Use the cmake_policy command to set the policy and suppress this warning.
 
  get_target_property() called with non-existent target "doc".
Call Stack (most recent call first):
  CMakeLists.txt:215 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.
 
 
-----------------------------------------------------------------------------
-- The following external packages were located on your system.
-- This installation will have the extra features provided by these packages.
-----------------------------------------------------------------------------
   * Qt - Required for building everything
   * QtOpenGL - Required for OpenGL acceleration in qtvideosink and QtGStreamerUi
   * QtQuick1 (QtDeclarative) - Required for building QtQuick1 support
   * QtQuick2 (QtQuick) - Required for building QtQuick2 support
   * QtQml - Required for building QtQuick2 support
   * Boost - Required for building QtGLib
   * GStreamer - Required to build QtGStreamer
   * GStreamer base library - Used for building the qt5videosink element
   * GStreamer app library - Required to build QtGStreamerUtils
   * GStreamer audio library - Required to build QtGStreamer
   * GStreamer video library - Required to build QtGStreamer
   * GStreamer pbutils library - Used for building the Discoverer API
   * GLib - Required to build QtGLib
   * GObject - Required to build QtGLib
   * OpenGL - Required for OpenGL rendering support in qt5videosink
   * Doxygen - Used to generate the API documentation
 
-----------------------------------------------------------------------------
-- Congratulations! All external packages have been found.
-----------------------------------------------------------------------------
 
-- Configuring done
CMake Warning (dev):
  Policy CMP0042 is not set: MACOSX_RPATH is enabled by default.  Run "cmake
  --help-policy CMP0042" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.
 
  MACOSX_RPATH is not specified for the following targets:
 
   Qt5GLib
   Qt5GStreamer
   Qt5GStreamerQuick
   Qt5GStreamerUi
   Qt5GStreamerUtils
 
This warning is for project developers.  Use -Wno-dev to suppress it.
 
-- Generating done
-- Build files have been written to: /Users/manou/soundLab/qt-gstreamer-1.2.0/build
manous-MBP:build manou$ make
Scanning dependencies of target Qt5GLib_automoc
[  1%] Automatic moc for target Qt5GLib
Generating connect.moc
[  1%] Built target Qt5GLib_automoc
[  1%] Copying gen.cpp to the build directory
Scanning dependencies of target Qt5GLib
[  2%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/quark.cpp.o
[  3%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/type.cpp.o
[  4%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/paramspec.cpp.o
[  5%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/object.cpp.o
[  5%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/value.cpp.o
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/value.cpp:60:5: warning: 'g_value_get_char' is deprecated [-Wdeprecated-declarations]
    DECLARE_VTABLE(char, char, Type::Char)
    ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/value.cpp:50:43: note: expanded from macro 'DECLARE_VTABLE'
            *reinterpret_cast<T*>(data) = g_value_get_##NICK(value); \
                                          ^
<scratch space>:5:1: note: expanded from here
g_value_get_char
^
/usr/local/Cellar/glib/2.42.2/include/glib-2.0/gobject/gvaluetypes.h:182:23: note: 'g_value_get_char' has been explicitly marked deprecated
      here
gchar                 g_value_get_char          (const GValue *value);
                      ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/value.cpp:60:5: warning: 'g_value_set_char' is deprecated [-Wdeprecated-declarations]
    DECLARE_VTABLE(char, char, Type::Char)
    ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/value.cpp:55:13: note: expanded from macro 'DECLARE_VTABLE'
            g_value_set_##NICK(value, *reinterpret_cast<T const *>(data)); \
            ^
<scratch space>:6:1: note: expanded from here
g_value_set_char
^
/usr/local/Cellar/glib/2.42.2/include/glib-2.0/gobject/gvaluetypes.h:179:23: note: 'g_value_set_char' has been explicitly marked deprecated
      here
void                  g_value_set_char          (GValue       *value,
                      ^
2 warnings generated.
[  6%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/signal.cpp.o
[  7%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/error.cpp.o
[  8%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/connect.cpp.o
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/connect.cpp:76:13: warning: expression result unused [-Wunused-value]
            dynamic_cast<const InvalidTypeException &>(e);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/connect.cpp:82:17: warning: expression result unused [-Wunused-value]
                dynamic_cast<const InvalidValueException &>(e);
                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
[  9%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/wrap.cpp.o
[ 10%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/init.cpp.o
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGlib/init.cpp:29:5: warning: 'g_type_init' is deprecated [-Wdeprecated-declarations]
    g_type_init();
    ^
/usr/local/Cellar/glib/2.42.2/include/glib-2.0/gobject/gtype.h:679:23: note: 'g_type_init' has been explicitly marked deprecated here
void                  g_type_init                    (void);
                      ^
1 warning generated.
[ 10%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/gen.cpp.o
[ 11%] Building CXX object src/QGlib/CMakeFiles/Qt5GLib.dir/Qt5GLib_automoc.cpp.o
Linking CXX shared library libQt5GLib-2.0.dylib
[ 11%] Built target Qt5GLib
Scanning dependencies of target Qt5GStreamer_automoc
[ 12%] Automatic moc for target Qt5GStreamer
[ 12%] Built target Qt5GStreamer_automoc
[ 13%] Copying gen.cpp to the build directory
Scanning dependencies of target Qt5GStreamer
[ 14%] Building CXX object src/QGst/CMakeFiles/Qt5GStreamer.dir/init.cpp.o
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/init.cpp:17:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/init.h:20:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/global.h:25:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/type.h:22:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/global.h:25:
In file included from /Users/manou/Qt5.4.1/5.4/clang_64/lib/QtCore.framework/Headers/QtGlobal:1:
In file included from /Users/manou/Qt5.4.1/5.4/clang_64/lib/QtCore.framework/Headers/qglobal.h:81:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/algorithm:627:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/memory:1:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/memory.h:21:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/miniobject.h:21:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/refpointer.h:24:
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:37:1: error: unknown type name 'QTGLIB_EXPORT'
QTGLIB_EXPORT RefCountedObject *constructWrapper(Type instanceType, void *instance);
^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:37:31: error: expected ';' after top level declarator
QTGLIB_EXPORT RefCountedObject *constructWrapper(Type instanceType, void *instance);
                              ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:69:1: error: unknown type name 'QTGLIB_EXPORT'
QTGLIB_EXPORT RefCountedObject *wrapObject(void *gobject);
^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:69:31: error: expected ';' after top level declarator
QTGLIB_EXPORT RefCountedObject *wrapObject(void *gobject);
                              ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:70:1: error: unknown type name 'QTGLIB_EXPORT'
QTGLIB_EXPORT RefCountedObject *wrapParamSpec(void *param);
^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:70:31: error: expected ';' after top level declarator
QTGLIB_EXPORT RefCountedObject *wrapParamSpec(void *param);
                              ^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:71:1: error: unknown type name 'QTGLIB_EXPORT'
QTGLIB_EXPORT RefCountedObject *wrapInterface(Type interfaceType, void *gobject);
^
/Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/wrap.h:71:31: error: expected ';' after top level declarator
QTGLIB_EXPORT RefCountedObject *wrapInterface(Type interfaceType, void *gobject);
                              ^
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/init.cpp:17:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/init.h:20:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/global.h:25:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/type.h:22:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/global.h:25:
In file included from /Users/manou/Qt5.4.1/5.4/clang_64/lib/QtCore.framework/Headers/QtGlobal:1:
In file included from /Users/manou/Qt5.4.1/5.4/clang_64/lib/QtCore.framework/Headers/qglobal.h:81:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/algorithm:627:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/memory:1:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/memory.h:21:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/miniobject.h:21:
In file included from /Users/manou/soundLab/qt-gstreamer-1.2.0/src/QGst/../QGlib/refpointer.h:26:
In file included from /usr/local/include/boost/type_traits.hpp:49:
In file included from /usr/local/include/boost/type_traits/is_complex.hpp:12:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/complex:247:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/sstream:174:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ostream:131:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__locale:15:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:999:32: error: no member
      named 'find_first_of' in namespace 'std::__1'; did you mean '__find_first_of'?
    const _CharT* __r = _VSTD::find_first_of
                        ~~~~~~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:994:34: note:
      '__find_first_of' declared here
_SizeT _LIBCPP_INLINE_VISIBILITY __find_first_of(const _CharT *__p, _SizeT __sz,
                                 ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1090:12: error: use of
      undeclared identifier '__murmur2_or_cityhash'
    return __murmur2_or_cityhash<size_t>()(__p, (__e-__p)*sizeof(value_type));
           ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1090:34: error: unexpected
      type name 'size_t': expected expression
    return __murmur2_or_cityhash<size_t>()(__p, (__e-__p)*sizeof(value_type));
                                 ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1090:42: error: expected
      expression
    return __murmur2_or_cityhash<size_t>()(__p, (__e-__p)*sizeof(value_type));
                                         ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1179:13: error: unknown type
      name 'allocator_traits'
    typedef allocator_traits<allocator_type>             __alloc_traits;
            ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1179:29: error: expected
      member name or ';' after declaration specifiers
    typedef allocator_traits<allocator_type>             __alloc_traits;
    ~~~~~~~~~~~~~~~~~~~~~~~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1180:22: error: use of
      undeclared identifier '__alloc_traits'
    typedef typename __alloc_traits::size_type           size_type;
                     ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1180:38: error: expected a
      qualified name after 'typename'
    typedef typename __alloc_traits::size_type           size_type;
                                     ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1180:47: error: expected ';'
      at end of declaration list
    typedef typename __alloc_traits::size_type           size_type;
                                              ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1181:22: error: use of
      undeclared identifier '__alloc_traits'
    typedef typename __alloc_traits::difference_type     difference_type;
                     ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/string:1181:38: error: expected a
      qualified name after 'typename'
    typedef typename __alloc_traits::difference_type     difference_type;
                                     ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[2]: *** [src/QGst/CMakeFiles/Qt5GStreamer.dir/init.cpp.o] Error 1
make[1]: *** [src/QGst/CMakeFiles/Qt5GStreamer.dir/all] Error 2
make: *** [all] Error 2