> Em ter 13 maio 2014, ?s 12:28:11, achart...@fastmail.fm escreveu: > > Hi all, > > > > I would like to enable the -Weverything and -Werror Clang compiler flags > > for my application code to treat all warnings as errors. > > Please note that Qt compiles mostly cleanly with -Wall -Wextra -Werror. > We do > not support -Weverything, since it produces warnings that are, well, > stupid. > > > Unfortunately, > > Qt itself generates a large number of warnings. I would like to suppress > > the warnings generated for Qt code but have Clang report all the > > warnings (errors) in my application code. > > > > I have searched a lot on this subject and have not found a solution that > > really works. The proper way to do this is to use the -isystem flag and > > specify the Qt include directories so they may be treated as system > > headers, however qmake seems to always pass the Qt include directories > > with the -I argument no matter what I do (I even tried INCLUDEPATH -= > > <Qt_include_dirs> to no avail). > > Make sure you're using 5.3. If so, qmake will automatically use -isystem > for > all system header paths. > > Note: *system* header paths. You need to install Qt in one of the system > header paths for that to take effect. That is, /usr/include or > /usr/local/include or one of the rest listed in: > > $ grep DEFAULT_INCDIRS mkspecs/qconfig.pri > QMAKE_DEFAULT_INCDIRS = /usr/include/c++/4.8 > /usr/include/c++/4.8/x86_64- > suse-linux /usr/include/c++/4.8/backward /usr/lib64/gcc/x86_64-suse- > linux/4.8/include /usr/local/include /usr/lib64/gcc/x86_64-suse- > linux/4.8/include-fixed /usr/x86_64-suse-linux/include /usr/include > > > > The only approach that has worked so far is to use the -Wno flag to > > disable certain warnings. This is far from desirable, as then the > > warning checking in my application code is tied to the quality of the Qt > > codebase. > > We only need -Wno-error=deprecated-register and that's because of a macro > from > glibc (Linux). No other flags are necessary with -Wall -Wextra. > > -- > Thiago Macieira - thiago.macieira (AT) intel.com > Software Architect - Intel Open Source Technology Center
Thanks Thiago, I'm glad to hear -isystem is supported. I'll give this a try with the Qt 5.3 release. Regarding QMAKE_DEFAULT_INCDIRS: is it possible to append additional paths to this variable from within project files? Thanks again! Alfonso _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
