On 02.02.2016 13:38, Jakub Jelinek wrote:
On Tue, Feb 02, 2016 at 01:32:17PM +0100, Sandro Mani wrote:
Hi
qt-creator builds have started to fail, I've reduced the failure down to
having "-isystem /usr/include" in the command line:
Don't use -isystem /usr/include for C++, unless you also include first all
the C++ include directories as -isystem too. Why do you need that?
-isystem /usr/include is the default, but in proper place, not prepended
before system headers.
QMake is generating such Makefiles. Looks like the combination of
/usr/lib64/qt5/mkspecs/common/gcc-base.conf: QMAKE_CFLAGS_ISYSTEM
= -isystem
and
/usr/lib64/qt5/mkspecs/common/qconfig.pri: QMAKE_DEFAULT_INCDIRS =
/usr/include/c++/5.3.1 /usr/include/c++/5.3.1/x86_64-redhat-linux
/usr/include/c++/5.3.1/backward
/usr/lib/gcc/x86_64-redhat-linux/5.3.1/include /usr/local/include
/usr/include
From which it seems that the actual cause of the issue is that
qt5-qtbase is not yet rebuilt against GCC6 and hence the C++ includes
are missing.
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