[notmuch] [PATCH] Mac OS X compatibility fixes

[Alexander Botero-Lowry]

On Sun, 22 Nov 2009 11:07:36 +0800, Jjgod Jiang <gzjjgod at gmail.com> wrote:
> Add missing GNU extensions strdup() and getline(). The C library
> shipped with Mac OS X does not include them (though it does support
> some GNU extensions when _GNU_SOURCE is defined), so we have to
> add these two. The getline() implementation is a modified version
> of getdelim() from GNU Libc.
Awesome!

> diff --git a/lib/xutil.c b/lib/xutil.c
> index 6fa5eb0..805b236 100644
> --- a/lib/xutil.c
> +++ b/lib/xutil.c
> @@ -79,6 +79,105 @@ xstrdup (const char *s)
>      return ret;
>  }
>  
> +#ifdef __APPLE__
Not awesome.

This should be done in a capabilites way, for example strndup was added
to FreeBSD in 7.2 (which is this current release of the 7 line), and so
for older versions of FreeBSD strndup will be needed. getdelim() and
getline() came in FreeBSD 8, so they'll be needed for the entire 7 line.
So Instead of just assuming __APPLE__ this should be done by determing
if the symbols are generally needed.

alex