bug#14513: 24.3.50; Site load-path pieces differ in MSYS build

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 2 Jun 2013 12:33:08 +0100
> From: Richard Copley <rcopley@gmail.com>
> 
> > Date: Sat, 1 Jun 2013 18:25:14 +0100
> > From: Richard Copley <rcopley@gmail.com>
> > [...] that's not possible without resorting to
> > heuristics, because ${locallisppath} is potentially a ":"-separated path.
> 
> The attached patch supports both styles. The heuristics didn't turn
> out to be as hairy as I imagined.
> 
> A few test cases:
> 
> nt/msysconfig.sh
> #define PATH_SITELOADSEARCH
> "%emacs_dir%/share/emacs/24.3.50/site-lisp;%emacs_dir%/share/emacs/site-lisp"
> 
> nt/msysconfig.sh --prefix c:/emacs/emacs-112809
> #define PATH_SITELOADSEARCH
> "%emacs_dir%/share/emacs/24.3.50/site-lisp;%emacs_dir%/share/emacs/site-lisp"
> 
> nt/msysconfig.sh --prefix="c:\\Program Files (x86)\\Emacs"
> #define PATH_SITELOADSEARCH
> "%emacs_dir%/share/emacs/24.3.50/site-lisp;%emacs_dir%/share/emacs/site-lisp"
> 
> nt/msysconfig.sh --prefix="c:/Program Files (x86)/Emacs"
> --enable-locallisppath="%emacs_dir%/../site-lisp;d:/wherever/site-lisp"
> #define PATH_SITELOADSEARCH
> "%emacs_dir%/../site-lisp/;d:/wherever/site-lisp"
> 
> nt/msysconfig.sh --prefix="c:/Program Files (x86)/Emacs"
> --enable-locallisppath="%emacs_dir%/../site-lisp;/d/wherever/site-lisp"
> #define PATH_SITELOADSEARCH
> "%emacs_dir%/../site-lisp/;d:/wherever/site-lisp"
> 
> nt/msysconfig.sh --prefix="/usr/local"
> --enable-locallisppath="/usr/local/share/my-site-lisp"
> #define PATH_SITELOADSEARCH "%emacs_dir%/share/my-site-lisp"

Thanks, I committed this (with ChangeLog entries) in your name.

Please note that these patches all but exhausted the limit on the
patches we can accept without your signing of legal papers.  So
additional contributions (which will be most welcome) will need
paperwork to be sent to the FSF copyright clerk.

Thanks again for working on this.