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

[Denys Dmytriyenko]

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'