bug#14068: [PATCH] Officially support DragonFly BSD

[John Marino]

Hi, Emacs has built on DragonFly BSD for years, but it required patches 
of course.  One of the leaders of NetBSD's pkgsrc project has requested 
that the patch to configure.ac which enables DragonFly support be pushed 
upstream, and that seems like a great idea.

The follow patches were generated against version 24.3, so they should 
apply directly.

configure.ac:
https://raw.github.com/jsonn/pkgsrc/trunk/editors/emacs24/patches/patch-aa

configure (yes, I know it's generated but just FYI):
https://raw.github.com/jsonn/pkgsrc/trunk/editors/emacs24/patches/patch-ab

It would be great if Emacs could finally be built on DragonFly BSD out 
of the box without patches.  Can we make this happen?  Do you need 
anything else from me?  I'm hoping this is an obvious contribution.

Regards,
John