Bug#811986: qwtplot3d: FTBFS with GCC 6: symbol changes

Scott Kitterman debian at kitterman.com
Wed Jul 20 21:24:06 UTC 2016


On Tuesday, January 19, 2016 08:13:48 PM you wrote:
> Package: qwtplot3d
> Version: 0.2.7+svn191-9
> Severity: important
> User: debian-gcc at lists.debian.org
> Usertags: ftbfs-gcc-6 gcc-6-symbols
> 
> 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
> 
> ...
> 
> > dpkg-gensymbols: warning: some symbols or patterns disappeared in the
> > symbols file: see diff output below dpkg-gensymbols: warning:
> > debian/libqwtplot3d-qt4-0v5/DEBIAN/symbols doesn't match completely
> > debian/libqwtplot3d-qt4-0v5.symbols ---
> > debian/libqwtplot3d-qt4-0v5.symbols
> > (libqwtplot3d-qt4-0v5_0.2.7+svn191-9_amd64) +++
> > dpkg-gensymbolsFodDeO	2016-01-19 23:39:20.896195539 +0000
...

This is trivially fixable once GCC-6 is default, so removal from testing now 
makes no sense.  No idea how failing to build with a non-default compiler is 
RC in any case.

Scott K



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