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: 2014-04-25 12:45:33

#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:
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Comment (by andysem):

 Replying to [comment:8 steffen@…]:
 >
 > Then I tried to compile it on my older computer under Ubuntu 14.04 (AMd
 Athlon X2 4600), and it failed with an internal compiler error, I guess
 due to the lack of AVX support in that old CPU:

 Host CPU features should not influence the code generation, unless you use
 -march=native. BTW, you shouldn't really use -march and similar flags, b2
 has instruction-set property, which has the same meaning but may also be
 picked up by Boost libraries build scripts.

 > Did you use my user-config.jam?

 Yes, I only had to change the compiler executable name and correct
 directories and similar stuff in the command line. I'll try experimenting
 more though.

 > Then bjam should have called g++ with "-flto=5" option. You can see the
 compiler options in the output lines of bjam.

 Yes, all options were there, both at compilation and linking stages. I
 wonder if it could be related to -march=native flag since I tried this on
 a Haswell machine. I'll try on another machine when I have time.

 > I'll file a bug report for this to GCC and give you the id.

 Thanks, I appreciate that.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9766#comment:9>
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