[oe] nativesdk-qtbase 5.9.2 C++11 errors with gcc 6.3?

[Khem Raj]

On Fri, Oct 13, 2017 at 01:21:10AM +0000, Denys Dmytriyenko wrote:
> Khem,
> 
> I tried following on your suggestion to add #include <cmath>, but it is 
> already there in src/corelib/global/qnumeric_p.h
> 
> Not sure why target qtbase builds fine with oe-core gcc 6.3.0, but 
> nativesdk-qtbase fails with this error... Any more ideas? Thanks.

Do you use uninative ? if not then try with uninative. 
It seems to be mixing headers from your build host and nativesdk sysroot
there could be several reasons for that. You can also try to build on
a different distro on host may be one which has gcc6 as host gcc.

> 
> -- 
> Denys
> 
> 
> On Tue, Oct 03, 2017 at 07:45:35PM -0400, Denys Dmytriyenko wrote:
> > Martin, Khem,
> > 
> > Have you tried building Qt 5.9 with gcc 6.3 from oe-core? I'm seeing bunch of 
> > what seems to be C++11 related errors during do_configure of nativesdk-qtbase. 
> > Target qtbase builds fine and switching to gcc 7.2 seems to resolve it as well.
> > 
> > Any ideas or pointers? Thanks!


> > 
> > 
> > Errors are like these:
> > 
> > In file included from ../include/QtCore/5.9.2/QtCore/private/qnumeric_p.h:1:0,
> >                  from /OE/master/build/tmp-glibc/work/x86_64-nativesdk-oe-linux/nativesdk-qtbase/5.9.2+gitAUTOINC+73573fce29-r0/git/src/corelib/tools/qarraydata.cpp:42:
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h: In function 'bool qnumeric_std_wrapper::__builtin_isnan(double)':
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:104:45: error: '__builtin_isnan' is not a member of 'std'
> >  static inline bool isnan(double d) { return std::isnan(d); }
> >                                              ^~~
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:104:45: note: suggested alternatives:
> > <built-in>: note:   '__builtin_isnan'
> > In file included from /OE/master/build/tmp-glibc/work/x86_64-nativesdk-oe-linux/nativesdk-qtbase/5.9.2+gitAUTOINC+73573fce29-r0/recipe-sysroot/tmp/sdk/sysroots/x86_64-oe-linux/usr/include/c++/6.3.0/cmath:45:0,
> >                  from ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:56,
> >                  from ../include/QtCore/5.9.2/QtCore/private/qnumeric_p.h:1,
> >                  from /OE/master/build/tmp-glibc/work/x86_64-nativesdk-oe-linux/nativesdk-qtbase/5.9.2+gitAUTOINC+73573fce29-r0/git/src/corelib/tools/qarraydata.cpp:42:
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:104:20: note:   'qnumeric_std_wrapper::__builtin_isnan'
> >  static inline bool isnan(double d) { return std::isnan(d); }
> >                     ^
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h: At global scope:
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:105:20: error: expected ')' before '(' token
> >  static inline bool isinf(double d) { return std::isinf(d); }
> >                     ^
> > In file included from ../include/QtCore/5.9.2/QtCore/private/qnumeric_p.h:1:0,
> >                  from /OE/master/build/tmp-glibc/work/x86_64-nativesdk-oe-linux/nativesdk-qtbase/5.9.2+gitAUTOINC+73573fce29-r0/git/src/corelib/tools/qarraydata.cpp:42:
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h: In function 'bool qnumeric_std_wrapper::__builtin_isfinite(double)':
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:106:48: error: '__builtin_isfinite' is not a member of 'std'
> >  static inline bool isfinite(double d) { return std::isfinite(d); }
> >                                                 ^~~
> > ../include/QtCore/5.9.2/QtCore/private/../../../../../../git/src/corelib/global/qnumeric_p.h:106:48: note: suggested alternatives:
> > <built-in>: note:   '__builtin_isfinite'
> > -- 
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