[Debian-med-packaging] Bug#811633: FTBFS with GCC 6: cannot convert x to y

[Sascha Steinbiss]

Hi all,

I have fixed this FTBFS in git. Now ray builds fine for me with:
gcc version 6.0.0 20160405 (experimental) [trunk revision 234749]
(Debian 6-20160405-1)

Maybe there's an easier way with adjusting C++ standards in the build
system, but that's not my core expertise and the changes aren't that
voluminous anyway.

Cheers
Sascha

On Tue, 19 Jan 2016 16:27:59 -0800 Martin Michlmayr <tbm at hpe.com> wrote:
> Package: ray
> Version: 2.3.1-2
> Severity: important
> User: debian-gcc at lists.debian.org
> Usertags: ftbfs-gcc-6 gcc-6-cannot-convert
> 
> This package fails to build with GCC 6.  GCC 6 has not been released
> yet, but it's expected that GCC 6 will become the default compiler for
> stretch.
> 
> Note that only the first error is reported; there might be more.  You
> can find a snapshot of GCC 6 in experimental.  To build with GCC 6,
> you can set CC=gcc-6 CXX=g++-6 explicitly.
> 
> > sbuild (Debian sbuild) 0.67.0 (26 Dec 2015) on dl580gen9-02.hlinux
> ...
> >   CXX code/GeneOntology/KeyEncoder.o
> >   CXX code/GeneOntology/GeneOntology.o
> > In file included from /usr/lib/openmpi/include/mpi.h:253:0,
> >                  from RayPlatform/RayPlatform/memory/DirtyBuffer.h:27,
> >                  from RayPlatform/RayPlatform/memory/RingAllocator.h:25,
> >                  from RayPlatform/RayPlatform/communication/VirtualCommunicator.h:28,
> >                  from ./code/Searcher/Searcher.h:39,
> >                  from code/GeneOntology/GeneOntology.h:26,
> >                  from code/GeneOntology/GeneOntology.cpp:25:
> > /usr/lib/openmpi/include/mpi_portable_platform.h:374:34: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
> >               _STRINGIFY(__GNUC__)"."_STRINGIFY(__GNUC_MINOR__)"."_STRINGIFY(__GNUC_PATCHLEVEL__)
> >                                   ^
> > 
> > /usr/lib/openmpi/include/mpi_portable_platform.h:374:63: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
> >               _STRINGIFY(__GNUC__)"."_STRINGIFY(__GNUC_MINOR__)"."_STRINGIFY(__GNUC_PATCHLEVEL__)
> >                                                                ^
> > 
> > code/GeneOntology/GeneOntology.cpp: In member function 'bool GeneOntology::fetchArguments()':
> > code/GeneOntology/GeneOntology.cpp:221:20: error: cannot convert 'std::ifstream {aka std::basic_ifstream<char>}' to 'bool' in initialization
> >    bool test1Result=test1;
> >                     ^~~~~
> > 
> > code/GeneOntology/GeneOntology.cpp:230:20: error: cannot convert 'std::ifstream {aka std::basic_ifstream<char>}' to 'bool' in initialization
> >    bool test2Result=test2;
> >                     ^~~~~
> > 
> > Makefile:160: recipe for target 'code/GeneOntology/GeneOntology.o' failed
> > make[2]: *** [code/GeneOntology/GeneOntology.o] Error 1
> 
> -- 
> Martin Michlmayr
> Linux for HPE Helion, Hewlett Packard Enterprise
> 
> 


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