Re: nativesdk-qtbase 5.9.2 C++11 errors with gcc 6.3?

[Denys Dmytriyenko <denis@denix.org>]

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.

-- 
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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