Problem using Vc with CMake 3.0 and kf5
Aleix Pol
aleixpol at kde.org
Sat May 23 12:06:13 UTC 2015
On Sat, May 23, 2015 at 11:51 AM, Boudewijn Rempt <boud at valdyas.org> wrote:
> Sorry for the extensive cross-posting in advance, please when replying, do a
> reply-all.
>
> Just so everyone is on the same page: Vc is a template library that makes it
> easy to build vectorized code using a single source file. Krita uses Vc to
> optimize blending colors, creating masks and much more. Krita uses the most
> recent Vc release, 0.7.4: http://code.compeng.uni-frankfurt.de/news/27
>
> We're currently porting Krita to Qt5 and KF5 and the way KF5 and Vc handle
> include directories is a big roadblock for us:
> https://git.reviewboard.kde.org/r/123179/ .
>
> In a nutshell: Vc builds many different object files from single cpp file.
> It does this by creating a custom command for each target vectorization
> extension. To do that, it needs to access the contents of
> INCLUDE_DIRECTORIES, like this (in VcMacros.cmake:
> http://code.compeng.uni-frankfurt.de/projects/vc/repository/entry/cmake/VcMacros.cmake?rev=0.7)
>
> get_directory_property(_inc INCLUDE_DIRECTORIES)
> foreach(_i ${_inc})
> list(APPEND _flags "-I${_i}")
> endforeach()
>
> In the end the command is generated like this:
>
> add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_out}
> COMMAND ${CMAKE_CXX_COMPILER} ${_flags} ${_extra_flags}
> -DVC_IMPL=${_impl}
> ${_outfile_flag}${_out}
> ${CMAKE_CURRENT_SOURCE_DIR}/${_vc_compile_src}
> MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/${_vc_compile_src}
> IMPLICIT_DEPENDS CXX
> ${CMAKE_CURRENT_SOURCE_DIR}/${_vc_compile_src}
> COMMENT "Building CXX object ${_out}"
> WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
> VERBATIM
> )
> KF5 uses cmake generator expressions to derive the include directories from
> the target_link_libraries lines. This means that when we try to build our
> per-extensions object files we get this:
>
>
>
> [ 0%] Building CXX object
> KoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o
> cd /home/boud/kde/build/calligra/libs/pigment && /usr/bin/c++ -std=c++0x
> -fno-exceptions -Wall -Wextra -Wcast-align -Wchar-subscripts
> -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor
> -Woverloaded-virtual -Werror=return-type -D__GNUC_UBUNTU_VERSION__=0xf040a
> -Wabi -fabi-version=0 -ffp-contract=fast -mtune=core2 -fPIC
> -I/home/boud/kde/src/calligra/interfaces -I/home/boud/kde/build/calligra
> -I/home/boud/kde/src/calligra -I/home/boud/kde/src/calligra/libs/version
> -I/home/boud/kde/build/calligra/libs/version
> -I/home/boud/kde/src/calligra/libs/koplugin
> -I/home/boud/kde/src/calligra/libs/version
> -I/home/boud/kde/build/calligra/libs/version
> -I/home/boud/kde/src/calligra/libs/pigment
> -I/home/boud/kde/src/calligra/libs/pigment/compositeops
> -I/home/boud/kde/src/calligra/libs/pigment/resources -I/usr/include
> -I/usr/include -I/usr/include/OpenEXR -I/usr/include -mavx -DVC_IMPL=AVX -c
> -oKoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o
> /home/boud/kde/src/calligra/libs/pigment/compositeops/KoOptimizedCompositeOpFactoryPerArch.cpp
>
> /home/boud/kde/src/calligra/libs/pigment/compositeops/KoOptimizedCompositeOpFactoryPerArch.cpp:22:19:
> fatal error: QString: No such file or directory
> #include <QString>
> ^
> compilation terminated.
> libs/pigment/CMakeFiles/pigmentcms.dir/build.make:72: recipe for target
> 'libs/pigment/KoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o' failed
>
> On other words, INCLUDE_DIRECTORIES is empty, there's no Qt5, no Kf5 to be
> found.
>
> If we manually set include directories like this:
>
> if (HAVE_VC)
> message(".>>>>>>>>>>>>" ${KDE4_INCLUDES})
> include_directories(${KDE4_INCLUDES} ${Qt5Core_INCLUDE_DIRS}
> ${Qt5Gui_INCLUDE_DIRS} ${Qt5Xml_INCLUDE_DIRS} ${PIGMENT_INCLUDES}
> ${Boost_INCLUDE_DIR})
> endif()
>
> We end up with the entire include line for the contents of KDE4_INCLUDES
> ($<TARGET_PROPERTY:KF5::KDELibs4Support,INTERFACE_INCLUDE_DIRECTORIES>)
> expanded to a string with quotes around it:
>
> [ 0%] Building CXX object KoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o
> cd /home/boud/kde/build/calligra/libs/pigment && /usr/bin/c++ -std=c++0x
> -fno-exceptions -Wall -Wextra -Wcast-align -Wchar-subscripts
> -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor
> -Woverloaded-virtual -Werror=return-type -D__GNUC_UBUNTU_VERSION__=0xf040a
> -Wabi -fabi-version=0 -ffp-contract=fast -mtune=core2 -fPIC
> -I/home/boud/kde/src/calligra/interfaces -I/home/boud/kde/build/calligra
> -I/home/boud/kde/src/calligra -I/home/boud/kde/src/calligra/libs/version
> -I/home/boud/kde/build/calligra/libs/version
> "-I/usr/include/KF5/KDELibs4Support;/usr/include/KF5/KDELibs4Support/KDE;/usr/include/KF5;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtWidgets;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtGui;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtCore;/usr/lib/x86_64-linux-gnu/qt5//mkspecs/linux-g++-64;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtDBus;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtPrintSupport;/usr/include/KF5/KCoreAddons;/usr/include/KF5;/usr/include/KF5/KCrash;/usr/include/KF5;/usr/include/KF5/KWidgetsAddons;/usr/include/KF5;/usr/include/KF5/KConfigCore;/usr/include/KF5;/usr/include/KF5/KConfigWidgets;/usr/include/KF5;/usr/include/KF5/KCodecs;/usr/include/KF5;/usr/include/KF5/KConfigGui;/usr/include/KF5;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtXml;/usr/include/KF5/KAuth;/usr/include/KF5;/usr/include/KF5/KIOCore;
> /usr/include/KF5;/usr/include/KF5/KService;/usr/include/KF5;/usr/include/KF5/KIOFileWidgets;/usr/include/KF5;/usr/include/KF5/KIOWidgets;/usr/include/KF5;/usr/include/KF5/KJobWidgets;/usr/include/KF5;/usr/include/x86_64-linux-gnu/qt5/;/usr/include/x86_64-linux-gnu/qt5/QtNetwork;/usr/include/KF5/KCompletion;/usr/include/KF5;/usr/include/KF5/KBookmarks;/usr/include/KF5;/usr/include/KF5/KItemViews;/usr/include/KF5;/usr/include/KF5/KXmlGui;/usr/include/KF5;/usr/include/KF5/Solid;/usr/include/KF5;/usr/include/KF5/KI18n;/usr/include/KF5;/usr/include/KF5/KNotifications;/usr/include/KF5;/usr/include/KF5/KIconThemes;/usr/include/KF5;/usr/include/KF5/KWindowSystem;/usr/include;/usr/include;/usr/include/KF5;/usr/include/KF5;/usr/include/KF5/KGuiAddons;/usr/include/KF5;/usr/include/KF5/KUnitConversion;/usr/include/KF5;/usr/include/KF5/KTextWidgets;/usr/include/KF5;/usr/include/KF5/SonnetUi;/usr/include/KF5;/usr/include/KF5/KParts;/usr/include/KF5"
> -I/usr/include/x86_64-linux-gnu/qt5
> -I/usr/include/x86_64-linux-gnu/qt5/QtCore
> -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++-64
> -I/usr/include/x86_64-linux-gnu/qt5
> -I/usr/include/x86_64-linux-gnu/qt5/QtGui
> -I/usr/include/x86_64-linux-gnu/qt5/QtCore
> -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++-64
> -I/usr/include/x86_64-linux-gnu/qt5
> -I/usr/include/x86_64-linux-gnu/qt5/QtXml
> -I/usr/include/x86_64-linux-gnu/qt5/QtCore
> -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++-64
> -I/home/boud/kde/src/calligra/libs/koplugin
> -I/home/boud/kde/src/calligra/libs/version
> -I/home/boud/kde/build/calligra/libs/version
> -I/home/boud/kde/src/calligra/libs/pigment
> -I/home/boud/kde/src/calligra/libs/pigment/compositeops
> -I/home/boud/kde/src/calligra/libs/pigment/resources -I/usr/include
> -I/usr/include -I/usr/include/OpenEXR -I/usr/include -mavx -DVC_IMPL=AVX -c
> -oKoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o
> /home/boud/kde/src/calligra/libs/pigment/compositeops/KoOptimizedCompositeOpFactoryPerArch.cpp
> In file included from
> /home/boud/kde/src/calligra/libs/pigment/DebugPigment.h:23:0,
> from
> /home/boud/kde/src/calligra/libs/pigment/compositeops/KoOptimizedCompositeOpFactoryPerArch.cpp:23:
> /home/boud/kde/src/calligra/libs/pigment/pigment_export.h:24:23: fatal
> error: kdemacros.h: No such file or directory
> #include <kdemacros.h>
> ^
> compilation terminated.
> libs/pigment/CMakeFiles/pigmentcms.dir/build.make:72: recipe for target
> 'libs/pigment/KoOptimizedCompositeOpFactoryPerArch_AVX.cpp.o' failed
>
>
> And that's where I'm totally stuck. It seems the cmake 3.0/kf5/e-c-m (I
> don't know where this system came from) is incompatible with a key libary
> that I have to use. We can't drop using Vc, we cannot move to a newer
> release of Vc and I can't see a way to replicate the functionality of
> vc_compile_for_all_implementations in our own cmake code either, so please
> help!
>
> Boudewijn
>
>
>
>
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>
Including kde-windows, they are more likely to know what's going on...
Aleix
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