[pkg-fgfs-crew] Bug#812014: flightgear: FTBFS with GCC 6: return-statement with a value

[Martin Michlmayr]

Package: flightgear
Version: 3.4.0-3
Severity: important
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-6

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.

You may be able to find out more about this issue at
https://gcc.gnu.org/gcc-6/changes.html

> sbuild (Debian sbuild) 0.67.0 (26 Dec 2015) on dl580gen9-02.hlinux
...
> [ 46%] Building CXX object src/Main/CMakeFiles/fgfs.dir/__/GUI/menubar.cxx.o
> cd /<<PKGBUILDDIR>>/build/src/Main && /usr/bin/c++   -DHAVE_CONFIG_H -DWITH_EVENTINPUT -I/<<PKGBUILDDIR>>/3rdparty/iaxclient/lib -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/AL -I/usr/include/simgear/3rdparty/utf8 -I/<<PKGBUILDDIR>> -I/<<PKGBUILDDIR>>/src -I/<<PKGBUILDDIR>>/build/src -I/<<PKGBUILDDIR>>/build/src/Include -I/<<PKGBUILDDIR>>/3rdparty/hts_engine_API/include -I/<<PKGBUILDDIR>>/3rdparty/flite_hts_engine/include -I/<<PKGBUILDDIR>>/src/FDM/JSBSim  -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wall  -D_REENTRANT -DBOOST_MULTI_INDEX_DISABLE_SERIALIZATION -DBOOST_BIMAP_DISABLE_SERIALIZATION -g -DNDEBUG   -o CMakeFiles/fgfs.dir/__/GUI/menubar.cxx.o -c /<<PKGBUILDDIR>>/src/GUI/menubar.cxx
> In file included from /<<PKGBUILDDIR>>/src/Cockpit/groundradar.cxx:45:0:
> /usr/include/simgear/math/beziercurve.hxx: In member function 'void simgear::BezierCurve<T>::getMaxSubdiv() const':
> /usr/include/simgear/math/beziercurve.hxx:62:40: error: return-statement with a value, in function returning 'void' [-fpermissive]
>      void getMaxSubdiv() const { return mMaxSubdiv; }
>                                         ^~~~~~~~~~
> 

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