Bug#811733: cdrdao: FTBFS with GCC 6: narrowing conversion

[Martin Michlmayr <tbm@hpe.com>]

Package: cdrdao
Version: 1:1.2.3-2
Severity: important
User: debian-gcc@lists.debian.org
Usertags: ftbfs-gcc-6 gcc-6-narrowing

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
...
> g++ -DHAVE_CONFIG_H -I. -I.. -I./../trackdb -I./../paranoia   -Wdate-time -D_FORTIFY_SOURCE=2 -DDRIVER_TABLE_FILE=\"/usr/share/cdrdao/drivers\" -g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -c -o sg_err.o sg_err.cc
> CdrDriver.cc:499:64: error: narrowing conversion of '255' from 'int' to 'char' inside { } [-Wnarrowing]
>  char CdrDriver::REMOTE_MSG_SYNC_[4] = { 0xff, 0x00, 0xff, 0x00 };
>                                                                 ^
> 
> CdrDriver.cc:499:64: error: narrowing conversion of '255' from 'int' to 'char' inside { } [-Wnarrowing]
> Makefile:608: recipe for target 'CdrDriver.o' failed
> make[3]: *** [CdrDriver.o] Error 1

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