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bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment
From: |
Eli Zaretskii |
Subject: |
bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect |
Date: |
Tue, 22 Nov 2016 18:01:32 +0200 |
> From: Noam Postavsky <npostavs@users.sourceforge.net>
> Date: Mon, 21 Nov 2016 18:19:53 -0500
> Cc: Óscar Fuentes <ofv@wanadoo.es>, 24956@debbugs.gnu.org
>
> On Sat, Nov 19, 2016 at 2:16 AM, Eli Zaretskii <eliz@gnu.org> wrote:
> >
> > . I'd rather have the WINDOWSNT-specific code separate (on w32.c),
> > so perhaps the for-loop you modified could be left intact, and
> > instead we perform an additional pass over Vprocess_environment,
> > after it is already copied, to replace these two variables with
> > their upper-case equivalents, in that special code on w32.c.
>
> Okay, here is a patch that does that.
Thanks.
> + /* Make the same modification to `process-environment' which has
> + already been initialized in set_initial_environment. */
> + Lisp_Object env = Vprocess_environment;
> + Lisp_Object path = build_string ("PATH=");
> + Lisp_Object path_len = make_number (SBYTES (path));
> + Lisp_Object comspec = build_string ("COMSPEC=");
> + Lisp_Object comspec_len = make_number (SBYTES (comspec));
> + for (; CONSP (env); env = XCDR (env))
> + {
> + Lisp_Object entry = XCAR (env);
> + if (EQ (Fcompare_strings (entry, Qnil, path_len, path, Qnil, Qnil,
> Qt), Qt))
> + for (ptrdiff_t i = 0; i < SBYTES (path); i++)
> + SSET (entry, i, SREF (path, i));
> + else if (EQ (Fcompare_strings (entry, Qnil, comspec_len, comspec,
> Qnil, Qnil, Qt), Qt))
> + for (ptrdiff_t i = 0; i < SBYTES (comspec); i++)
> + SSET (entry, i, SREF (comspec, i));
> + }
Why not compare in using _strnicmp instead of Fcompare_strings? That
would save you the need to cons Lisp strings, and will be more
efficient (Fcompare_strings is quite complex). Not that speed matters
in this case, but it's just looks strange to me. Am I missing
something?
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Óscar Fuentes, 2016/11/16
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/17
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Eli Zaretskii, 2016/11/17
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/17
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Eli Zaretskii, 2016/11/18
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/18
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Eli Zaretskii, 2016/11/19
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/21
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect,
Eli Zaretskii <=
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/22
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Eli Zaretskii, 2016/11/23
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Óscar Fuentes, 2016/11/27
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, npostavs, 2016/11/27
- bug#24956: 26.0.50; On Windows, setting PATH in compilation-environment has no effect, Noam Postavsky, 2016/11/28