Hello,

Didier Godefroy <ldg@ulysium.net> writes:

> numbers.c: In function 'scm_c_make_polar':
> numbers.c:5356: warning: implicit declaration of function 'sincos'
> numbers.c:5356: warning: incompatible implicit declaration of built-in
> function 'sincos'

I was about to suggest the same as Linas did, but a quick search led to
this:

  https://bugs.freedesktop.org/show_bug.cgi?id=4401

The attached patch is less radical than the Cairo one.  Can you try it
and report back?

Thanks,
Ludo'.