Performing Test Qt5Gui_PRIVATE_HEADER_FOUND - Failed

Konstantin Tokarev

By chance, are you using custom mkspec when building Qt? Assuming that Qt is built with the same compiler

RaymondH

I have resolved the issue with the undefined references to the three libraries as indicated above.

However, though that was fixed, I now do indeed have an issue with the private headers not found, as shown below.

I shouldn't need to explicitly add the private header directories to my INCLUDE environment variables, should I? There would potentially be many of them. I'd expect them to be found automatically in some way... How is this done?

From the CMakeError.log file:

/opt/anss/bin/g++   -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -fno-exceptions -fno-strict-aliasing -fno-rtti -std=c++11 -DQt5Gui_PRIVATE_HEADER_FOUND -I/home/staff/rmhoffma/Qt/QtBuildBin/include -I/home/staff/rmhoffma/Qt/QtBuildBin/include/QtGui -I/home/staff/rmhoffma/Qt/QtBuildBin/include/QtCore -I/home/staff/rmhoffma/Qt/QtBuildBin/./mkspecs/linux-g++    -fPIC -o CMakeFiles/cmTryCompileExec1880278613.dir/src.cxx.o -c /home/staff/rmhoffma/Qt/QtBuilds/qtwebkitBuild/release/CMakeFiles/CMakeTmp/src.cxx
/home/staff/rmhoffma/Qt/QtBuilds/qtwebkitBuild/release/CMakeFiles/CMakeTmp/src.cxx:2:42: fatal error: private/qhexstring_p.h: No such file or directory
         #include <private/qhexstring_p.h>
                                          ^
compilation terminated.
gmake[2]: *** [CMakeFiles/cmTryCompileExec1880278613.dir/src.cxx.o] Error 1
gmake[2]: Leaving directory `/home/staff/rmhoffma/Qt/QtBuilds/qtwebkitBuild/release/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTryCompileExec1880278613/fast] Error 2
gmake[1]: Leaving directory `/home/staff/rmhoffma/Qt/QtBuilds/qtwebkitBuild/release/CMakeFiles/CMakeTmp'

Source file was:

        #include <private/qhexstring_p.h>
        int main() { return 0; }

Thanks for any assistance...

Konstantin Tokarev

CMake caches results of compilation tests in build directory (in CMakeCache.txt file), so I guess that you've fixed issue with unresolved libraries successfully but didn't clear cache after that

RaymondH

I delete everything from my build directory before running make, including any CMakeCache.txt file. Unless there is another location that files are stored on building, I believe I'm starting with a clean slate.

Konstantin Tokarev

@RaymondH said in Performing Test Qt5Gui_PRIVATE_HEADER_FOUND - Failed:

-DQt5Gui_PRIVATE_HEADER_FOUND

What is in CMakeError.log if you don't add -DQt5Gui_PRIVATE_HEADER_FOUND?

RaymondH

This is an automated script - i.e. it's configuring things using the OptionsQt.cmake file. I am not adding any parameters manually. How do I remove parameters that I didn't add and are added atomatically?

RaymondH

This post is deleted!

Konstantin Tokarev

Ok, seems like you are just missing Qt5Gui_PRIVATE_INCLUDE_DIRS cmake variable in Qt5GuiConfig.cmake now

RaymondH

So are you suggesting I make changes to the Qt installation to make my compilation work? I wouldn't think that should be necessary...

The file is located at: <QtInstall>/lib/cmake/Qt5Gui/Qt5GuiConfig.cmake

There is logic in that file that is supposed to set the variable, but it is by-passed during this build because of the following conditional:

if (NOT TARGET Qt5::Gui)

Apparently, when this configuration step happens, the TARGET is Qt5::Gui, and hence this conditional branch is never entered.

However, removing this conditional causes the QtWebKit configuration to fail in many many other ways, so it's not as simple as removing it.

Konstantin Tokarev

Apparently, when this configuration step happens, the TARGET is Qt5::Gui

No, this condition means "if target Qt5::Gui wasn't defined yet" (sort of guard against double inclusion)

Qt5Gui_PRIVATE_INCLUDE_DIRS may be empty if you are using shadow build when building Qt, see https://bugreports.qt.io/browse/QTBUG-37417

RaymondH

Apparently a former build, or something, created the following files, which show up as new files when doing a git status command:

        Source/JavaScriptCore/disassembler/udis86/ud_optable.pyc
        Source/WebCore/inspector/CodeGeneratorInspectorStrings.pyc
        Source/WebKit2/Scripts/webkit2/__init__.pyc
        Source/WebKit2/Scripts/webkit2/messages.pyc
        Source/WebKit2/Scripts/webkit2/model.pyc
        Source/WebKit2/Scripts/webkit2/parser.pyc

Once I delete these files, and reconfigure, the problem seems to have gone away.

Thanks Konstantin for your time.

Konstantin Tokarev

@RaymondH This *.pyc files could not have any impact on cmake stage

RaymondH

I don't know. Regardless, removing these files makes my problem go away.