Re: Emacs 25.2, win64, env vars

[Noam Postavsky <npostavs@users.sourceforge.net>]

On Sun, Jun 11, 2017 at 4:33 PM, Fabrice Popineau
<fabrice.popineau@gmail.com> wrote:

> AFAIK, environment variables are case insensitive under Windows.
> So there is something that is not taken care of for the case of case
> insensitive environment variables.
> I haven't (yet) been able to find where this magic happens however.

It looks like there is code for it in callproc.c:

static bool
getenv_internal_1 (const char *var, ptrdiff_t varlen, char **value,
           ptrdiff_t *valuelen, Lisp_Object env)
{
  for (; CONSP (env); env = XCDR (env))
    {
      Lisp_Object entry = XCAR (env);
      if (STRINGP (entry)
      && SBYTES (entry) >= varlen
#ifdef WINDOWSNT
      /* NT environment variables are case insensitive.  */
      && ! strnicmp (SSDATA (entry), var, varlen)