qt.network.ssl: QSslSocket errors/warnings
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Basically:
mkdir build_qt cd build_qt /path/to/Qt/sources/configure -nomake tests -nomake examples make -j9 sudo make installYou can also enable the new SecureTransport based backend which makes use of OS X cryptographic framework rather than OpenSSL.
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Thank you. I have downloaded the source and followed the basic outline for the build - but I still have the errors :-(.
I am presently guessing that my application build may not yet be using the new Qt-built-from-source?
I use make for my build environment, and there are two lines I believe to be relevant:
set (CMAKE_PREFIX_PATH ~/Qt/5.5/clang_64/ )
set (QT_QTGUI_LIBRARY ~/build_qt/qtbase/lib/QtGui.framework)Note, that I have edited the second one to reflect the new build location, hopefully correctly? I have not yet changed the first line, as I am unclear where to point it for the new material. The value indicated above is the value before the build-from-source.
So, the questions are: am I on the right path on my CMakeLists.txt change, and how should I complete it if so. Or - is there something else I should be doing?
Thank you,
AndyBelow is the full CMakeLists.txt:
cmake_minimum_required(VERSION 2.8.5 FATAL_ERROR)
project(ia)
add_definitions(-std=c++11)
option(WANT_DEBUG ON)
if (APPLE)
add_definitions(-Wno-macro-redefined -Wno-inconsistent-missing-override -Wno-potentially-evaluated-expression)
endif()set (CMAKE_PREFIX_PATH ~/Qt/5.5/clang_64/ )
set (QT_QTGUI_LIBRARY ~/build_qt/qtbase/lib/QtGui.framework)Tell CMake to run moc when necessary.
set(CMAKE_AUTOMOC ON)
As moc files are generated in the binary dir, tell CMake to always look for includes there.
set(CMAKE_INCLUDE_CURRENT_DIR ON)
Widgets finds its own dependencies (QtGui and QtCore).
find_package(Qt5Widgets REQUIRED)
The Qt5Widgets_INCLUDES also includes the include directories for dependencies QtCore and QtGui.
include_directories(${Qt5Widgets_INCLUDES})
We need add -DQT_WIDGETS_LIB when using QtWidgets in Qt 5.
add_definitions(${Qt5Widgets_DEFINITIONS})
Executables fail to build with Qt 5 in the default configuration without -fPIE. We add that here.
set(CMAKE_CXX_FLAGS "${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
set(CPP cap_main.cpp cap.cpp workItem.cpp)
set(MOC )
set(UI cap.ui workItem.ui)
set(RCC cap.qrc)qt5_wrap_cpp(MOC_GENERATED ${MOC})
qt5_wrap_ui(UI_GENERATED ${UI})
qt5_add_resources(RCC_RESOURCES ${RCC})source_group("Form Files" FILES ${UI})
source_group("Resource Files" FILES ${RCC})
source_group("Generated Files" FILES ${MOC_GENERATED} ${UI_GENERATED} ${RCC_GENERATED})include_directories($(CMAKE_CURRENT_BINARY_DIR) $(CMAKE_CURRENT_SOURCE_DIR))
qt5_add_resources(RESOURCE_ADDED ${RCC})
set_source_files_properties(${RESOURCE_ADDED} PROPERTIES GENERATED ON)add_executable(my-app MACOSX_BUNDLE ${MOC_GENERATED} ${UI_GENERATED} ${RCC_GENERATED} ${CPP} main.cpp ${RESOURCE_ADDED})
target_link_libraries(my-app ${Qt5Widgets_LIBRARIES} )set up the unit test targets
find_package(Qt5Test REQUIRED)
if (APPLE)
install(TARGETS my-app BUNDLE DESTINATION ~/bin/)
else (APPLE)
install(TARGETS my-app DESTINATION /usr/local/bin)
endif() -
You are telling cmake to look at your original Qt install not the one you compiled
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I have now modified the first statement after groking the directory structure. The two lines that should point to the new are now as follows:
set (CMAKE_PREFIX_PATH ~/build_qt/qtbase/)
set (QT_QTGUI_LIBRARY ~/build_qt/qtbase/lib/QtGui.framework)Yet, the same result, i.e., the errors persist. Either, is there more to do in order to point to the one I built, and/or, is there any other way to specifically look at the OpenSSL library specifically?
Andy
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Did you build Qt to use the Secure Transport backend ?
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You should have added -securetransport to your configure line for that.
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In fact, even with this additional option I still was actually not completely using the manual build, and have been working, a result of the fact that the application is composed of multiple libraries each of which needs to link against the newly built Qt. So I finally got to that point, only to find out that my Qt build had in fact terminated early and I didn't even have the complete build! For some reason, it was stopping in qtquick (which I do not use), so I looked into how to avoid building qtquick and found out that there is a "-skip" option. This time, the build was taking a verrrrrrrrrrrrrry long time, and after 2+ hours I started to despair. The machine I am running on only has 2 cores, which I am sure contributes to the time. So I took a deeper look at what else I didn't need to try to reduce the build time, not knowing how long it might take. The configure that I finally came to was:
../qt-everywhere-enterprise-src-5.5.1/configure -nomake tests
-nomake examples -securetransport -skip qtdeclarative
-skip qtquickcontrols -skip qtwebchannel -skip qt3D -skip qtsensors
-skip qtserialport -skip qtwayland -skip qtandroidextras -skip qtx11extrasNow, this is currently building. I'm about an hour into it as I write this post.
Leading me to my next question: am I doing something wrong? Particularly with how long it is taking, I am worried that even this may fail in the end, and with so much time for the steps I hope you don't mind my seeking your feedback on whether I am on the right track and just need to be patient, or any wisdom you may impart would be deeply appreciated.
Many thanks,
Andy -
One thing than can speed things up: ensure you are doing only a release build.
Then, what modules do you need ? If only a few, you can start by building only qtbase and then use the qmake/make/make install combo for the other modules.Don't forget to use -j3 when calling make, that will keep your two processors as occupied as possible.
