[PATCH] gdb/configure.ac: add --enable-source-highlight

[Eli Zaretskii]

> From: Sergio Durigan Junior <sergiodj@redhat.com>
> Cc: Tom Tromey <tom@tromey.com>,  gdb-patches@sourceware.org
> Date: Sun, 17 Mar 2019 23:52:51 -0400
> 
> Something Keith and I were talking about the other day is adding a
> command line switch to enable/disable source highlight, so the user can
> do:
> 
>   gdb --disable-source-highlight ...
> 
>   (or some such)

We already have a variable, which you can set from your ~/.gdbinit,
isn't that enough?