[CMake] cmake link against Qt4's OpenGL

[Michael Jackson]

Set the CMAKE_OSX_SYSROOT to /Developer/SDKs/MacOSX10.5.sdk

and try again. Also, you do actually have the MacOSX10.5.sdk available  
correct?

The link line contains all the proper OpenGL (both apple and Qt)  
frameworks. You just need to get past the SDK setting first.

Mike

On Sep 26, 2008, at 4:52 PM, Linge Bai wrote:

> Attached is a screen shot of running ccmake. It's MacOSX10.4u.sdk.  
> And it showed that QTOPENGL and QGLWIDGET are not found.
>
> make VERBOSE=1
> /opt/local/bin/cmake -H/Users/lb353/Desktop/myQt/hellogl -B/Users/ 
> lb353/Desktop/myQt/hellogl --check-build-system CMakeFiles/ 
> Makefile.cmake 0
> /opt/local/bin/cmake -E cmake_progress_start /Users/lb353/Desktop/ 
> myQt/hellogl/CMakeFiles /Users/lb353/Desktop/myQt/hellogl/CMakeFiles/ 
> progress.make
> make -f CMakeFiles/Makefile2 all
> make -f CMakeFiles/exe.dir/build.make CMakeFiles/exe.dir/depend
> cd /Users/lb353/Desktop/myQt/hellogl && /opt/local/bin/cmake -E  
> cmake_depends "Unix Makefiles" /Users/lb353/Desktop/myQt/hellogl / 
> Users/lb353/Desktop/myQt/hellogl /Users/lb353/Desktop/myQt/hellogl / 
> Users/lb353/Desktop/myQt/hellogl /Users/lb353/Desktop/myQt/hellogl/ 
> CMakeFiles/exe.dir/DependInfo.cmake --color=
> make -f CMakeFiles/exe.dir/build.make CMakeFiles/exe.dir/build
> /opt/local/bin/cmake -E cmake_progress_report /Users/lb353/Desktop/ 
> myQt/hellogl/CMakeFiles 1
> [ 33%] Building CXX object CMakeFiles/exe.dir/main.o
> /usr/bin/c++   -DQT_DLL -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_CORE_LIB - 
> isysroot /Developer/SDKs/MacOSX10.4u.sdk   -I/usr/local/Trolltech/ 
> Qt-4.4.2/include -I/usr/local/Trolltech/Qt-4.4.2/include/QtOpenGL -I/ 
> usr/local/Trolltech/Qt-4.4.2/include/QtGui -I/usr/local/Trolltech/ 
> Qt-4.4.2/include/QtCore   -F/usr/local/Trolltech/Qt-4.4.2/lib -L/usr/ 
> local/Trolltech/Qt-4.4.2/lib -F/usr/local/Trolltech/Qt-4.4.2/lib  -o  
> CMakeFiles/exe.dir/main.o -c /Users/lb353/Desktop/myQt/hellogl/ 
> main.cpp
> /opt/local/bin/cmake -E cmake_progress_report /Users/lb353/Desktop/ 
> myQt/hellogl/CMakeFiles 2
> [ 66%] Building CXX object CMakeFiles/exe.dir/glwidget.o
> /usr/bin/c++   -DQT_DLL -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_CORE_LIB - 
> isysroot /Developer/SDKs/MacOSX10.4u.sdk   -I/usr/local/Trolltech/ 
> Qt-4.4.2/include -I/usr/local/Trolltech/Qt-4.4.2/include/QtOpenGL -I/ 
> usr/local/Trolltech/Qt-4.4.2/include/QtGui -I/usr/local/Trolltech/ 
> Qt-4.4.2/include/QtCore   -F/usr/local/Trolltech/Qt-4.4.2/lib -L/usr/ 
> local/Trolltech/Qt-4.4.2/lib -F/usr/local/Trolltech/Qt-4.4.2/lib  -o  
> CMakeFiles/exe.dir/glwidget.o -c /Users/lb353/Desktop/myQt/hellogl/ 
> glwidget.cpp
> /opt/local/bin/cmake -E cmake_progress_report /Users/lb353/Desktop/ 
> myQt/hellogl/CMakeFiles 3
> [100%] Building CXX object CMakeFiles/exe.dir/window.o
> /usr/bin/c++   -DQT_DLL -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_CORE_LIB - 
> isysroot /Developer/SDKs/MacOSX10.4u.sdk   -I/usr/local/Trolltech/ 
> Qt-4.4.2/include -I/usr/local/Trolltech/Qt-4.4.2/include/QtOpenGL -I/ 
> usr/local/Trolltech/Qt-4.4.2/include/QtGui -I/usr/local/Trolltech/ 
> Qt-4.4.2/include/QtCore   -F/usr/local/Trolltech/Qt-4.4.2/lib -L/usr/ 
> local/Trolltech/Qt-4.4.2/lib -F/usr/local/Trolltech/Qt-4.4.2/lib  -o  
> CMakeFiles/exe.dir/window.o -c /Users/lb353/Desktop/myQt/hellogl/ 
> window.cpp
> Linking CXX executable exe
> /opt/local/bin/cmake -E cmake_link_script CMakeFiles/exe.dir/ 
> link.txt --verbose=1
> /usr/bin/c++    -isysroot /Developer/SDKs/MacOSX10.4u.sdk   -Wl,- 
> search_paths_first -headerpad_max_install_names -fPIC CMakeFiles/ 
> exe.dir/main.o CMakeFiles/exe.dir/glwidget.o CMakeFiles/exe.dir/ 
> window.o  -o exe  -F/usr/local/Trolltech/Qt-4.4.2/lib -framework  
> QtOpenGL -framework OpenGL -framework AGL -framework QtGui - 
> framework Carbon -framework AppKit -framework QtCore /usr/lib/ 
> libz.dylib -framework ApplicationServices
> ld: library not found for -lcrt1.10.5.o
> collect2: ld returned 1 exit status
> make[2]: *** [exe] Error 1
> make[1]: *** [CMakeFiles/exe.dir/all] Error 2
> make: *** [all] Error 2
>
> Have I linked to QTOPENGL or not?
>
> Linge
>
> On Fri, Sep 26, 2008 at 4:43 PM, Michael Jackson <mike.jackson at bluequartz.net 
> > wrote:
> run ccmake instead of cmake on your project. Look down the left hand  
> side of cmake variables. It should be listed.
>
> By default it should be 10.5.sdk so I am not sure what is really  
> going wrong.
>
> also, do the following:
>
> make clean
> make VERBOSE=1
>
> in your build directory and lets examine the compile and link lines..
>
>
> Mike
>
>
>
> On Sep 26, 2008, at 4:40 PM, Linge Bai wrote:
>
> my mac os x is 10.5.4, it's PPC. Xcode is version 3.1. I'm sorry  
> that I have no idea how to check CMAKE_OSX_SYSROOT.
>
> Linge
>
> On Fri, Sep 26, 2008 at 4:33 PM, Michael Jackson <mike.jackson at bluequartz.net 
> > wrote:
> What is your OS X version, (PPC or Intel), Xcode toolset version,  
> and what are you setting the  CMAKE_OSX_SYSROOT value to? It should  
> be /Developer/SDKs/MacOSX10.5.sdk
>
>
> Mike
>
>
> On Sep 26, 2008, at 4:26 PM, Linge Bai wrote:
>
> so if I use cmake 2.6.1, with the following CMakeList.txt file:
>
> PROJECT ( COMBINED )
> FIND_PACKAGE (Qt4 REQUIRED)
> SET(QT_USE_QTOPENGL TRUE)
> INCLUDE( ${QT_USE_FILE} )
> ADD_EXECUTABLE(exe main.cpp glwidget.cpp window.cpp)
> TARGET_LINK_LIBRARIES(exe ${QT_LIBRARIES})
>
> I am able to link to Qt4's OpenGL, but I have a link error:
>
> make
> Scanning dependencies of target exe
> Linking CXX executable exe
> ld: library not found for -lcrt1.10.5.o
> collect2: ld returned 1 exit status
> make[2]: *** [exe] Error 1
> make[1]: *** [CMakeFiles/exe.dir/all] Error 2
> make: *** [all] Error 2
>
> I have no idea what this error means.
>
> Linge
>
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> <Picture 2.png>