[Octave-bug-tracker] [bug #45399] build failure with multiple flex source files using gcc Link Time Optimization (LTO)

[Mike Miller]

Update of bug #45399 (project octave):

                  Status:         Patch Submitted => Fixed                  
             Open/Closed:                    Open => Closed                 

    _______________________________________________________

Follow-up Comment #3:

I actually do not see a build failure on the default branch with GCC 5.4 and
-flto. I do however see the "one definition rule" warning messages, which are
what Robert's patch address.

I still see some link-time warnings from liboctave, someone could look at
silencing those if they are interested. But I'm not going to leave this report
open for that.

For future reference, I am able to build with the following variables


CFLAGS="-g -O2 -flto"
CXXFLAGS="-g -O2 -flto"
FFLAGS="-g -O2 -flto"
LDFLAGS="-flto"
AR=gcc-ar
NM=gcc-nm
RANLIB=gcc-ranlib


I slightly modified the patch and commit message and applied it on the default
branch to silence the warning messages, thank you Robert for your
contribution.

http://hg.savannah.gnu.org/hgweb/octave/rev/66f3c4e81721

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?45399>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/