[Pkg-ime-devel] Bug#811637: FTBFS with GCC 6: cannot convert x to y

[Martin Michlmayr]

Package: librime
Version: 1.2+dfsg-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
...
> cd /<<BUILDDIR>>/librime-1.2+dfsg/obj-x86_64-linux-gnu/src && /usr/bin/c++   -DBOOST_NO_CXX11_SCOPED_ENUMS -DRIME_BUILD_SHARED_LIBS -DRIME_ENABLE_LOGGING -DRIME_EXPORTS -I/<<BUILDDIR>>/librime-1.2+dfsg/thirdparty/include -I/<<BUILDDIR>>/librime-1.2+dfsg/include  -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2  -O3 -DNDEBUG -fPIC   -o CMakeFiles/rime.dir/gear/poet.cc.o -c /<<BUILDDIR>>/librime-1.2+dfsg/src/gear/poet.cc
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc: In member function 'bool rime::MappedFile::Create(size_t)':
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc:109:10: error: cannot convert 'boost::scoped_ptr<rime::MappedFileImpl>' to 'bool' in return
>    return file_;
>           ^~~~~
> 
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc: In member function 'bool rime::MappedFile::OpenReadOnly()':
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc:119:10: error: cannot convert 'boost::scoped_ptr<rime::MappedFileImpl>' to 'bool' in return
>    return file_;
>           ^~~~~
> 
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc: In member function 'bool rime::MappedFile::OpenReadWrite()':
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc:129:10: error: cannot convert 'boost::scoped_ptr<rime::MappedFileImpl>' to 'bool' in return
>    return file_;
>           ^~~~~
> 
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc: In member function 'bool rime::MappedFile::IsOpen() const':
> /<<BUILDDIR>>/librime-1.2+dfsg/src/dict/mapped_file.cc:144:10: error: cannot convert 'const boost::scoped_ptr<rime::MappedFileImpl>' to 'bool' in return
>    return file_;
>           ^~~~~
> 
> src/CMakeFiles/rime.dir/build.make:1097: recipe for target 'src/CMakeFiles/rime.dir/dict/mapped_file.cc.o' failed
> make[3]: *** [src/CMakeFiles/rime.dir/dict/mapped_file.cc.o] Error 1

-- 
Martin Michlmayr
Linux for HPE Helion, Hewlett Packard Enterprise