CGAL users discussion list

[Pratyush Pranav <>]

Dear Laurent,

This worked like a charm, thanks. I have been banging my head over this for 
over a week now, scourging internet for possible solutions, but couldn’t find 
one. Thanks again!

pratyush

> On 1 Apr 2016, at 10:21, Laurent Rineau (CGAL/GeometryFactory) 
> <>
>  wrote:
> 
> Le Thursday 31 March 2016 16:26:30 Pratyush Pranav a écrit :
>> Hi,
>> 
>> I am running into trouble while trying to install CGAL 4.7 with Qt 5.6 on
>> OSX El Capitan. I use the developor tools from X code. I am attaching the
>> outputs of cmake and make below. Any help will be greatly appreciated.
> 
> (I reply below, with answers intertwined with parts of your message.)
> 
> [...]
>> == Setting paths ==
>> -- Build CGAL from release in directory CGAL-4.7
>> -- Packagenames: CGAL-4.7
>> == Setting paths (DONE) ==
> [...]
>> Configuring libCGAL_Qt5
>> -- USING Qt5_VERSION = '5.6.0'
>> -- OpenGL include:      /System/Library/Frameworks/OpenGL.framework
>> -- OpenGL libraries:   
>> /System/Library/Frameworks/AGL.framework;/System/Library/Frameworks/OpenGL.
>> framework -- OpenGL definitions:
>> -- Qt5Core include:    
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework;/Users/pratyuze/S
>> oftwares/qt5/qtbase/lib/QtCore.framework/Headers;/Users/pratyuze/Softwares/q
>> t5/qtbase/.//mkspecs/macx-clang -- Qt5 libraries:       Qt5::Core Qt5::Gui
>> Qt5::Svg Qt5::OpenGL
>> -- Qt5Core definitions: -DQT_CORE_LIB
>> -- moc executable:      /Users/pratyuze/Softwares/qt5/qtbase/bin/moc
>> -- uic executable:      /Users/pratyuze/Softwares/qt5/qtbase/bin/uic
>> -- Requested component: MPFR
>> -- Requested component: GMP
>> libCGAL_Qt5 is configured
>> -- Sources for CGAL component libraries
>> 'CGAL_Core;CGAL_ImageIO;CGAL_Qt3;CGAL_Qt5' detected == Generating build
>> files (DONE) ==
>> 
>> -- Configuring done
>> -- Generating done
>> -- Build files have been written to:
>> /Users/pratyuze/Libraries/CGAL-4.7/build
> 
> One can see that the CMake configuration of CGAL libraries went fine.
> 
> [...]
>> Scanning dependencies of target CGAL_Qt5
>> [ 29%] Building CXX object
>> src/CGAL_Qt5/CMakeFiles/CGAL_Qt5.dir/all_files.cpp.o In file included from
>> /Users/pratyuze/Libraries/CGAL-4.7/build/src/CGAL_Qt5/all_files.cpp:1: In
>> file included from
>> /Users/pratyuze/Libraries/CGAL-4.7/src/CGAL_Qt5/debug.cpp:22: In file
>> included from
>> /Users/pratyuze/Libraries/CGAL-4.7/src/CGAL_Qt5/../../include/CGAL/Qt/debug
>> .h:28: In file included from
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework/Headers/QString:1
>> : In file included from
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework/Headers/qstring.h
>> :43:
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework/Headers/qrefcount
>> .h:48:22: error: expected ';' at end of declaration list inline bool ref()
>> Q_DECL_NOTHROW {
>>                     ^
>> In file included from
>> /Users/pratyuze/Libraries/CGAL-4.7/build/src/CGAL_Qt5/all_files.cpp:1: In
>> file included from
>> /Users/pratyuze/Libraries/CGAL-4.7/src/CGAL_Qt5/debug.cpp:22: In file
>> included from
>> /Users/pratyuze/Libraries/CGAL-4.7/src/CGAL_Qt5/../../include/CGAL/Qt/debug
>> .h:28: In file included from
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework/Headers/QString:1
>> :
>> /Users/pratyuze/Softwares/qt5/qtbase/lib/QtCore.framework/Headers/qstring.h
>> :65:1: error: unknown type name 'Q_FORWARD_DECLARE_CF_TYPE'
>> Q_FORWARD_DECLARE_CF_TYPE(CFString);
> 
> My guess is that you have Qt4 headers somewhere in the include path. Then 
> the <QtCore/qglobal.h> and <QtCore/qconfig.h> found first are those from 
> Qt4, instead of from Qt5.
> 
> See for example a blog page explaining a similar failure, on MacOS X as 
> well:
> 
>  
> http://blog.glehmann.net/2015/01/06/Investigating-build-failure-with-both-Qt4-and-Qt5-installed-on-Mac-OS-X/
> 
> -- 
> Laurent Rineau, PhD
> R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
> Release Manager of the CGAL Project       http://www.cgal.org/
> 
> 
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