[Bug 234672] www/chromium: c++: error: unable to execute command: Segmentation fault (core dumped)

[bob prohaska]

On Wed, Jan 16, 2019 at 07:51:07AM +0000, bugzilla-noreply at freebsd.org wrote:
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234672
> 
> Oleksandr Tymoshenko <gonzo at FreeBSD.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |dim at FreeBSD.org
> 
> --- Comment #8 from Oleksandr Tymoshenko <gonzo at FreeBSD.org> ---
> This looks more like clang-related crash than ARM-specific. I'll try to take a
> look but my expertise in this area is not great. Adding dim@ to Cc, he may be
> aware of known problems with clang/ARM in the latest release.
> 

In quite a few instances the make log file contains a note such as
*** Error code 254
[number varies, websearch found nothing]

and the error message indicates
cc: error: clang frontend command failed due to signal (use -v to see invocation)

If somebody could tell me how to invoke the -v option I'll try it.
IIRC putting CFLAGS=-v on the command line to make didn't work.

Is there any possibility this is a hardware issue, perhaps with the
microSD card? It's a Samsung EVO Plus, 128GB. No console errors at all,
the troubles appeared several buildworld cycles after starting to use it. 
Single thread make in single-user mode didn't avert the problem,  

Thanks for reading,

bob prohaska