[newlib-cygwin] cygwin: Use errno instead of _impure_ptr->_errno

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=9cc89b04383cf097fcd795b1a13670dff0d2854b

commit 9cc89b04383cf097fcd795b1a13670dff0d2854b
Author: Corinna Vinschen <cori...@vinschen.de>
Date:   Wed Jul 19 10:30:47 2017 +0200

    cygwin: Use errno instead of _impure_ptr->_errno
    
    Signed-off-by: Corinna Vinschen <cori...@vinschen.de>

Diff:
---
 winsup/cygwin/environ.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc
index 647db5f..10ffd68 100644
--- a/winsup/cygwin/environ.cc
+++ b/winsup/cygwin/environ.cc
@@ -454,8 +454,7 @@ posify_maybe (char **here, const char *value, char *outenv)
 
   memcpy (outenv, src, len);
   char *newvalue = outenv + len;
-  if (!conv->toposix (value, newvalue, NT_MAX_PATH - len)
-      || _impure_ptr->_errno != EIDRM)
+  if (!conv->toposix (value, newvalue, NT_MAX_PATH - len) || errno != EIDRM)
     conv->add_cache (newvalue, *value != '/' ? value : NULL);
   else
     {