Looks like the -O2 flag is somehow disappearing from the command line. Can you run make V=1 and paste an example g++ command?

On 1 Dec 2015 00:35, "Tavmjong Bah" <tavmjong@...8...> wrote:
On Mon, 2015-11-30 at 22:08 -0800, Krzysztof Kosiński wrote:
> Ugh, I was adding two conflicting -std= options in the C++11 case.
> Try
> again now, I've updated the branch.
>

The updated branch works! Thanks!

While I've got your attention... I am getting the following error
message for each file compiled:

In file included from /usr/include/c++/5.1.1/x86_64-redhat-
linux/bits/os_defines.h:39:0,
                 from /usr/include/c++/5.1.1/x86_64-redhat-
linux/bits/c++config.h:2216,
                 from /usr/include/c++/5.1.1/cstdio:41,
                 from trace/filterset.cpp:13:
/usr/include/features.h:328:4: warning: #warning _FORTIFY_SOURCE
requires compiling with optimization (-O) [-Wcpp]
 #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
    ^


Tav