Bug#811886: grass: FTBFS with GCC 6: declaration of ... has a different exception specifier

[Martin Michlmayr]

Package: grass
Version: 7.0.2-2
Severity: important
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-6 gcc-6-exception-specifier

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
...
> c++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fPIC  -I/<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include -I/<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include    -DPACKAGE=\""grasslibs"\"   -I/<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include -I/<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include -DRELDIR=\"lib/iostream\" -o OBJ.x86_64-pc-linux-gnu/rtimer.o -c rtimer.cpp
> mm.cpp: In function 'void* operator new [](size_t)':
> mm.cpp:279:7: error: declaration of 'void* operator new [](size_t) throw (std::bad_alloc)' has a different exception specifier
>  void* operator new[] (size_t sz) throw(std::bad_alloc) {
>        ^~~~~~~~
> 
> In file included from mm.cpp:49:0:
> /<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include/grass/iostream/mm.h:132:17: note: from previous declaration 'void* operator new [](std::size_t)'
>    friend void * operator new[](size_t) throw(std::bad_alloc);
>                  ^~~~~~~~
> 
> mm.cpp: In function 'void* operator new(size_t)':
> mm.cpp:330:7: error: declaration of 'void* operator new(size_t) throw (std::bad_alloc)' has a different exception specifier
>  void* operator new (size_t sz) throw(std::bad_alloc) {
>        ^~~~~~~~
> 
> In file included from mm.cpp:49:0:
> /<<PKGBUILDDIR>>/dist.x86_64-pc-linux-gnu/include/grass/iostream/mm.h:131:17: note: from previous declaration 'void* operator new(std::size_t)'
>    friend void * operator new(size_t) throw(std::bad_alloc);
>                  ^~~~~~~~
> 
> ../../include/Make/Compile.make:35: recipe for target 'OBJ.x86_64-pc-linux-gnu/mm.o' failed

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