dhcpcd-discuss

On 2017-10-01 23:26, Roy Marples wrote:
> On 01/10/2017 20:48, M. Buecher wrote:
> > It builds except for one error:
> > ../../src/eloop.o: In function `eloop_event_add_rw':
> > ./src/eloop.c:353: undefined reference to `reallocarray'
> > collect2: error: ld returned 1 exit status
> > Makefile:39: recipe for target 'eloop-bench' failed
> >
> > Don't know if this a source or Raspbian/Debian issue.
> > Anybody got a clue?
>
> I can replicate it on my Sparky Linux image.
> But it's tempermental, I can't always replicate it.
>
> I *think* it's a bug with GNU make - I cannot replicate it on any BSD
> platform but then reallocarray is also present so that particular
> issue would never be hit either.
>
> When it happens, I was able to build simply by touching src/eloop.c.
> This changes the datetime, which make does use, implying it's a make
> issue, or maybe an issue with my Makefile, but I don't understand what
> or how.
>
> The eloop_bench isn't really a test, it just measures performance of
> the chosen polling mechanism. I wrote it to highlight an issue with
> the kqueue implementation on NetBSD compared to other BSDs. Linux of
> course uses epoll.
>
> Roy

Just touching src/eloop.c didn't work for Raspbian/Debian and debuild.

From what I have seen so far my best guess is that 
"compat/reallocarray.o" is not available for linking. Just guessing as 
in the related call I cannot see that object referenced.

cc  -Wl,-z,relro -Wl,-z,now -o eloop-bench eloop-bench.o 
../../src/eloop.o

Maddes