[Buildroot] [PATCH v2] axel: bump to version 2.15

[Ismael Luceno]

On 16/Oct/2017 21:23, Thomas Petazzoni wrote:
<...>
> > +AXEL_CFLAGS = -D_POSIX_C_SOURCE=200112L
> > +AXEL_CONF_OPTS = \
> > +	ac_cv_prog_cc_c99=-std=c99 \
> > +	CFLAGS="$(TARGET_CFLAGS) $(AXEL_CFLAGS)"
> 
> Why do you need these? It should be explained in the commit log, or
> perhaps even better with a short comment.

ac_cv_prog_cc_c99 is needed because autoconf's C99 check requires
wchar_t.

The define is to build against uClibc, it will be fixed upstream with
the next release.

I'll send another version of the patch.