Re: [Boost-bugs] [Boost C++ Libraries] #9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-04-23 18:33:43

#9766: boost >= 1.54 failes to compile with gcc-4.8.2 and LTO enabled
-------------------------------+---------------------
  Reporter:  steffen@…         |      Owner:  andysem
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  log
   Version:  Boost 1.54.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------

Comment (by andysem):

 Replying to [comment:6 anonymous]:
 > Have you been able to reproduce the failure with my flags?

 No, I have tried to compile git develop branch with your flags and it
 succeeded without errors. As I said, I have gcc 4.8.2 on Ubuntu. I'm not
 sure how to verify that LTO was actually used. The object files (*.o) have
 the !__gnu_lto_v1 symbol, if that's an indication. OTOH, objdump produces
 disassembly for these files, which I find surprising.

 > Disabling LTO fixes the issue, sorry I forgot to mention that in my
 initial bug report. I guess this bug should be reported upstream to the
 GCC devs? Can you do this or do I have to deal with it? I'm wondering why
 I haven't found any other guys around who fail to compile boost >=1.54
 with LTO enabled.

 I suppose, LTO is not used very often yet in Linux world. Since I cannot
 reproduce the failure, it's probably easier for you to communicate with
 gcc devs (or package maintainers in Gentoo) regarding this issue.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9766#comment:7>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.