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

From: Denys Dmytriyenko <denis@denix.org>
To: Khem Raj <raj.khem@gmail.com>
Cc: openembedded-devel@lists.openembedded.org
Subject: Re: nativesdk-qtbase 5.9.2 C++11 errors with gcc 6.3?
Date: Fri, 13 Oct 2017 13:35:19 -0400	[thread overview]
Message-ID: <20171013173519.GO9221@denix.org> (raw)
In-Reply-To: <20171013034825.ispcwc762ls3ttes@apollo>

On Thu, Oct 12, 2017 at 08:48:25PM -0700, Khem Raj wrote:
> 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.

Tried uninative - didn't help, same issue.

I'm not so sure host headers are getting in the mix - it's Ubuntu 16.04 with 
gcc 5.4 on it, while switching between gcc 6.3 and gcc 7.2 in oe-core/master 
works with 7.2, but not 6.3.

I can see if I can try on a host with gcc 6...

> > 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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> 