Bug 394518 - gcompris compilation warnings (gcc7, and gcc8)
Summary: gcompris compilation warnings (gcc7, and gcc8)
Status: RESOLVED FIXED
Alias: None
Product: gcompris
Classification: Applications
Component: general (show other bugs)
Version: git master
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Jazeix Johnny
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-05-21 13:40 UTC by Bruno Friedmann
Modified: 2018-05-22 08:51 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


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Description Bruno Friedmann 2018-05-21 13:40:22 UTC
During compilation of gcompris-qt there's a number of warnings with differents level of severity.

Full log of 0.9.1 build 
https://build.opensuse.org/build/Education/openSUSE_Tumbleweed/x86_64/gcompris-qt/_log

During configure

 + /usr/bin/cmake /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/. '-GUnix Makefiles' -DCMAKE_INSTALL_PREFIX:PATH=/usr -DINCLUDE_INSTALL_DIR:PATH=/usr/include -DLIB_INSTALL_DIR:PATH=/usr/lib64 -DSYSCONF_INSTALL_DIR:PATH=/etc -DSHARE_INSTALL_PREFIX:PATH=/usr/share -DCMAKE_INSTALL_LIBDIR:PATH=/usr/lib64 -DCMAKE_BUILD_TYPE=RelWithDebInfo '-DCMAKE_C_FLAGS=-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g -fPIE -pie -fno-strict-aliasing -DNDEBUG -DNDEBUG' '-DCMAKE_CXX_FLAGS=-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g -fPIE -pie -fno-strict-aliasing -DNDEBUG -DNDEBUG' '-DCMAKE_Fortran_FLAGS=-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g -DNDEBUG' '-DCMAKE_EXE_LINKER_FLAGS=-Wl,--as-needed -Wl,--no-undefined -Wl,-z,now' -DCMAKE_MODULE_LINKER_FLAGS=-Wl,--as-needed '-DCMAKE_SHARED_LINKER_FLAGS=-Wl,--as-needed -Wl,--no-undefined -Wl,-z,now' -DLIB_SUFFIX=64 -DCMAKE_SKIP_RPATH:BOOL=ON -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=ON -DBUILD_STATIC_LIBS:BOOL=OFF -DCMAKE_COLOR_MAKEFILE:BOOL=OFF -DCMAKE_INSTALL_DO_STRIP:BOOL=OFF -DCMAKE_MODULES_INSTALL_DIR=/usr/share/cmake/Modules
 -- The C compiler identification is GNU 7.3.1
 -- The CXX compiler identification is GNU 7.3.1
 -- Check for working C compiler: /usr/bin/cc
 -- Check for working C compiler: /usr/bin/cc -- works
 -- Detecting C compiler ABI info
 -- Detecting C compiler ABI info - done
 -- Detecting C compile features
 -- Detecting C compile features - done
 -- Check for working CXX compiler: /usr/bin/c++
 -- Check for working CXX compiler: /usr/bin/c++ -- works
 -- Detecting CXX compiler ABI info
 -- Detecting CXX compiler ABI info - done
 -- Detecting CXX compile features
 -- Detecting CXX compile features - done
 -- Performing Test COMPILER_SUPPORTS_CXX11
 -- Performing Test COMPILER_SUPPORTS_CXX11 - Success
 -- Performing Test COMPILER_SUPPORTS_CXX0X
 -- Performing Test COMPILER_SUPPORTS_CXX0X - Success
 -- Could NOT find KF5DocTools: found neither KF5DocToolsConfig.cmake nor kf5doctools-config.cmake 
 CMake Deprecation Warning at /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:343 (message):
   LIB_INSTALL_DIR is deprecated, use KDE_INSTALL_LIBDIR instead.
 Call Stack (most recent call first):
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:437 (_define_relative)
   CMakeLists.txt:96 (include)
 
 
 -- Installing in the same prefix as Qt, adopting their path scheme.
 CMake Deprecation Warning at /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:343 (message):
   INCLUDE_INSTALL_DIR is deprecated, use KDE_INSTALL_INCLUDEDIR instead.
 Call Stack (most recent call first):
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:398 (_define_relative)
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:513 (_define_absolute)
   CMakeLists.txt:96 (include)
 
 
 CMake Deprecation Warning at /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:343 (message):
   SHARE_INSTALL_PREFIX is deprecated, use KDE_INSTALL_DATAROOTDIR instead.
 Call Stack (most recent call first):
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:398 (_define_relative)
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:534 (_define_absolute)
   CMakeLists.txt:96 (include)
 
 
 CMake Deprecation Warning at /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:343 (message):
   SYSCONF_INSTALL_DIR is deprecated, use KDE_INSTALL_SYSCONFDIR instead.
 Call Stack (most recent call first):
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:398 (_define_relative)
   /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:639 (_define_absolute)
   CMakeLists.txt:96 (include)
 
 
 CMake Warning at /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:660 (message):
   KDE_INSTALL_BINDIR, KDE_INSTALL_LIBDIR and KDE_INSTALL_INCLUDEDIR should
   either all be absolute paths or all be relative paths.
 Call Stack (most recent call first):
   CMakeLists.txt:96 (include)
 
 
 -- Using system qml-box2d plugin at /usr/lib64/qt5/qml/Box2D.2.0/libBox2D.so
 -- Configuring done
 CMake Warning (dev) in src/core/CMakeLists.txt:
   Policy CMP0043 is not set: Ignore COMPILE_DEFINITIONS_<Config> properties.
   Run "cmake --help-policy CMP0043" for policy details.  Use the cmake_policy
   command to set the policy and suppress this warning.
 This warning is for project developers.  Use -Wno-dev to suppress it.
 
 CMake Warning (dev) in src/core/CMakeLists.txt:
   Policy CMP0043 is not set: Ignore COMPILE_DEFINITIONS_<Config> properties.
   Run "cmake --help-policy CMP0043" for policy details.  Use the cmake_policy
   command to set the policy and suppress this warning.
 This warning is for project developers.  Use -Wno-dev to suppress it.
 
 -- Generating done
Comment 1 Bruno Friedmann 2018-05-21 13:49:36 UTC
During build

core/ActivityInfo.cpp & ApplicationSettings.h
warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

 cd /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/build/src/core && /usr/bin/c++  -DQT_CORE_LIB -DQT_GUI_LIB -DQT_MULTIMEDIA_LIB -DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_QML_LIB -DQT_QUICK_LIB -DQT_SENSORS_LIB -DQT_SVG_LIB -DQT_WIDGETS_LIB -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -I/home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/build/src/core -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtQml -isystem /usr/include/qt5/QtNetwork -isystem /usr/include/qt5/QtCore -isystem /usr/lib64/qt5/mkspecs/linux-g++ -isystem /usr/include/qt5/QtQuick -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtMultimedia -isystem /usr/include/qt5/QtXmlPatterns -isystem /usr/include/qt5/QtSvg -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtXml -isystem /usr/include/qt5/QtSensors  -fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g -fPIE -pie -fno-strict-aliasing -DNDEBUG -DNDEBUG -std=c++11 -O2 -g -DNDEBUG   -fPIC -std=gnu++11 -o CMakeFiles/gcompris-qt.dir/ActivityInfo.cpp.o -c /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ActivityInfo.cpp
 In file included from /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ActivityInfo.cpp:28:0:
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettings.h: In member function 'void ApplicationSettings::setPreviousHeight(qint32)':
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettings.h:298:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
          if(m_previousHeight != height) {
             ~~~~~~~~~~~~~~~~~^~~~~~~~~
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettings.h: In member function 'void ApplicationSettings::setPreviousWidth(qint32)':
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettings.h:306:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
          if(m_previousWidth != width) {
             ~~~~~~~~~~~~~~~~^~~~~~~~
 make[2]: Leaving directory '/home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/build'

----

 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ActivityInfoTree.cpp: In lambda function:
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ActivityInfoTree.cpp:161:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                                   return activity->difficulty() < levelMin || activity->difficulty() > levelMax;
                                          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ActivityInfoTree.cpp:161:101: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                                   return activity->difficulty() < levelMin || activity->difficulty() > levelMax;
                                                                               ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~

----

 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettingsDefault.cpp: In member function 'uint ApplicationSettings::checkActivationCode(const QString&)':
 /home/abuild/rpmbuild/BUILD/gcompris-qt-0.91/src/core/ApplicationSettingsDefault.cpp:55:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      ok = year * 100 + month + 200 >= atoi(BUILD_DATE);
           ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
Comment 2 animtim 2018-05-21 14:48:04 UTC
Thanks Bruno for the report.

For the configure part, I don't have those warnings on any of my build setups, so I guess they come from a newer cmake version than the ones we use to do the pacakges. So, not sure if we should change that already in our sources for now.

For the build warnings, I never noticed those, but I know we have other warnings coming from our external-embedded dependency qml-box2d, so they might have hidden between those making me not notice them. We will check.
Comment 3 Bruno Friedmann 2018-05-21 15:23:10 UTC
Hi Timothé the expanded result of our %cmake macros is the following

rpm --eval %cmake

    find . -name CMakeLists.txt \
        -exec sed -i -re '/^[[:blank:]]*[sS][eE][tT][[:blank:]]*\([[:blank:]]*(CMAKE_BUILD_TYPE|CMAKE_COLOR_MAKEFILE|CMAKE_INSTALL_PREFIX|CMAKE_VERBOSE_MAKEFILE).*\)/{s/^/#IGNORE /}' {} +
    mkdir -p build
    cd build
    /usr/bin/cmake $OLDPWD/. \
%if "/usr/bin/make" == "/usr/bin/make"
        -G"Unix Makefiles" \
%else
        -GNinja \
%endif
        -DCMAKE_INSTALL_PREFIX:PATH=/usr \
        -DINCLUDE_INSTALL_DIR:PATH=/usr/include \
        -DLIB_INSTALL_DIR:PATH=/usr/lib64 \
        -DSYSCONF_INSTALL_DIR:PATH=/etc \
        -DSHARE_INSTALL_PREFIX:PATH=/usr/share \
        -DCMAKE_INSTALL_LIBDIR:PATH=/usr/lib64 \
        -DCMAKE_BUILD_TYPE=RelWithDebInfo \
        -DCMAKE_C_FLAGS="${CFLAGS:--O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables} -DNDEBUG" \
        -DCMAKE_CXX_FLAGS="${CXXFLAGS:--O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables} -DNDEBUG" \
        -DCMAKE_Fortran_FLAGS="${FFLAGS:--O2 -g -m64 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables} -DNDEBUG" \
        -DCMAKE_EXE_LINKER_FLAGS="-Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \
        -DCMAKE_MODULE_LINKER_FLAGS="-Wl,--as-needed" \
        -DCMAKE_SHARED_LINKER_FLAGS="-Wl,--as-needed -Wl,--no-undefined -Wl,-z,now" \
%if "lib64" == "lib64"
        -DLIB_SUFFIX=64 \
%endif
        -DCMAKE_SKIP_RPATH:BOOL=ON \
        -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
        -DBUILD_SHARED_LIBS:BOOL=ON \
        -DBUILD_STATIC_LIBS:BOOL=OFF \
        -DCMAKE_COLOR_MAKEFILE:BOOL=OFF \
        -DCMAKE_INSTALL_DO_STRIP:BOOL=OFF \
        -DCMAKE_MODULES_INSTALL_DIR=/usr/share/cmake/Modules

I'm not using GNinja.
Hope this can help a bit more.

At anytime you can go back to the build log it has all the details.
Comment 4 Jazeix Johnny 2018-05-22 06:20:07 UTC
Hi,

for cmake the issues come from the parameters you give to the command line:
"-DINCLUDE_INSTALL_DIR:PATH=/usr/include" and the related warning:
"INCLUDE_INSTALL_DIR is deprecated, use KDE_INSTALL_INCLUDEDIR instead."

Can you try to change the cmake line with the not deprecated variables? According to the documentation (https://api.kde.org/ecm/kde-module/KDEInstallDirs.html#kde-module:KDEInstallDirs), it should work the same.

For the build, I'll check the warnings, they only appear when adding some options to the compiler flags (-Wall). It's "just" comparisons between unsigned and signed integer but will be still better to remove them.

Johnny
Comment 5 Jazeix Johnny 2018-05-22 08:51:01 UTC
Code warnings fixed on https://phabricator.kde.org/R2:459b7df47a95b56bb4e94ff971eaa0cf3a37568f + cmake policy set