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Re: Bug#822783: eztrace-contrib: FTBFS with libc 2.23: 'memcpy' was not declared in this scope



On 2016-04-28 15:09, Samuel Thibault wrote:
> Control: reassign -1 libc6-dev
> Control: tags -1 + experimental
> 
> Graham Inggs, on Wed 27 Apr 2016 15:07:52 +0200, wrote:
> > Eztrace-contrib FTBFS with glibc 2.23 available in Experimental and
> > Ubuntu Xenial.
> > 
> > > /usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:
> > > /usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope
> > >    return (char *) memcpy (__dest, __src, __n) + __n;
> > >                                           ^
> > > /usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:
> > > /usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope
> > >    return (char *) memcpy (__dest, __src, __n) + __n;
> > >                                           ^
> > > /usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:
> > > /usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope
> > >    return (char *) memcpy (__dest, __src, __n) + __n;
> > 
> > I found a similar issue had been reported for TensorFlow [1], and the solution:
> > 
> > > @e14159 can you try with -D_FORCE_INLINES? I just had the same issue with pcl,
> > > I checked the string.h header, and using that preprocessor directive skips the block
> > > where the memcpy error appears. There's probably a cleaner workaround though...
> 
> Well, a workaround remains a workaround. There is no reason why we
> shouldn't just fix the bug at its source, glibc. Otherwise we'd keep
> chasing packages which would need a workaround, that's really not the
> way to go.
> 
> So I'm reassigning to glibc.

I am not fully sure the bug is actually in on the libc sid. It looks
like that nvcc redefines part of this header in a way that is not
compatible with the new version of the header.

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                 http://www.aurel32.net


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