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Please see the big comment below the elseif line, the link to the kde-core-devel and http://lists.kde.org/?l=kde-core-devel&m=138244424421211&w=2: the issue here is that if you pass -fno-exceptions to clang you need to guarantee it is not going to include any headers that throw exceptions either, even if it is in some template code that never gets instantiated. For example, this does not build with clang++ -fno-exceptions, but does with GCC 4.8: #include <exception> template <typename T> struct S { void f() { throw std::exception(); } }; This was a problem for kdelibs including OpenEXR headers, or kdepim including pimlibs headers that all fell into this case. - Raphael Kubo da Costa On Jan. 30, 2014, 1:18 a.m., Alexander Richardson wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://git.reviewboard.kde.org/r/115395/ > ----------------------------------------------------------- > > (Updated Jan. 30, 2014, 1:18 a.m.) > > > Review request for Build System, Extra Cmake Modules and KDE Frameworks. > > > Repository: extra-cmake-modules > > > Description > ------- > > Also pass -fno-exceptions when building with clang > > All of KF5 + kate + kde-workspace compile with clang and -fno-exceptions > > The only problem related to clang and -fno-exceptions I could find was > http://llvm.org/bugs/show_bug.cgi?id=10910 and that is fixed since > clang version 3.0 which was released in December 2011 > > > Diffs > ----- > > kde-modules/KDECompilerSettings.cmake > 335e1270d19f8342e41b22e7081dea3f7ac0fbfc > > Diff: https://git.reviewboard.kde.org/r/115395/diff/ > > > Testing > ------- > > compiled all of kf5 + kate + kde-workspace without any issues using clang 3.3 > > Would be good if someone with an older clang version could test it and see > whether it works. > May also be related to the libstdc++ headers (4.8 installed here). > > > Thanks, > > Alexander Richardson > >
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