[Debian-med-packaging] Bug#811841: seqan: FTBFS with GCC 6: no match for

[Martin Michlmayr]

Package: seqan
Version: 1.4.1+dfsg-2
Severity: important
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-6 gcc-6-no-match

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
...
> /<<BUILDDIR>>/seqan-1.4.1+dfsg/core/include/seqan/basic/debug_test_system.h: In instantiation of 'bool seqan::ClassTest::testTrue(const char*, int, const T&, const char*, const char*, ...) [with T = std::basic_ifstream<char>]':
> /<<BUILDDIR>>/seqan-1.4.1+dfsg/core/include/seqan/basic/debug_test_system.h:1410:20:   required from 'bool seqan::ClassTest::testTrue(const char*, int, const T&, const char*) [with T = std::basic_ifstream<char>]'
> /<<BUILDDIR>>/seqan-1.4.1+dfsg/core/tests/store/test_store_io.h:435:9:   required from 'void SEQAN_TEST_test_store_io_sam() [with bool speed_up_dummy_to_prevent_compilation_of_unused_tests_ = true]'
> /<<BUILDDIR>>/seqan-1.4.1+dfsg/core/tests/store/test_store.cpp:60:5:   required from here
> /<<BUILDDIR>>/seqan-1.4.1+dfsg/core/include/seqan/basic/debug_test_system.h:1362:64: error: no match for 'operator<<' (operand types are 'std::basic_ostream<char>' and 'const std::basic_ifstream<char>')
>          std::cerr << file << ":" << line << " Assertion failed : "
>          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>                    << expression_ << " should be true but was " << (value_);
>                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
>