Re: Building master fails on Windows 10 when testing etc/NEWS file

[Paul Eggert <eggert@cs.ucla.edu>]

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On 9/18/19 4:36 AM, Juanma Barranquero wrote:

>    ELC      ../lisp/replace.elc
> Can't find D:\Devel\emacs\repo\trunk\src\bootstrap-emacs.exe to refresh
> preloaded Lisp files

Thanks, I installed the attached to try to fix that.

> Loading leim/leim-list.el (source)...
> Waiting for git...
> Error running git rev-parse: (file-error "Searching for program"
> "Permission denied" "git")
> Waiting for git...
> Error running git rev-parse --abbrev-ref: (file-error "Searching for
> program" "Permission denied" "git")

Is there a 'git' program in your PATH? What's the output of the following shell 
script (or equivalent) on your host?

IFS=':'
for dir in $PATH; do
   ls -ld "$dir" "$dir/git"
   echo =============
done

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From efa4edfadb3d8ac051ac21ccb4238f3eadb091dd Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 18 Sep 2019 04:21:19 -0700
Subject: [PATCH] Be less picky about EACCES in file test predicates

Problem reported by Tino Calancha (Bug#37445) and others.
* src/fileio.c (PICKY_EACCES): New constant, false by default.
(file_test_errno): Ignore EACCES if not picky.
(check_file_access): Investigate EACCES problems further
if picky.
---
 src/fileio.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/fileio.c b/src/fileio.c
index 0977516f01..58bc6b7ee8 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -253,9 +253,23 @@ file_attribute_errno (Lisp_Object file, int err)
   return file_metadata_errno ("Getting attributes", file, err);
 }
 
+/* In theory, EACCES errors for predicates like file-readable-p should
+   be checked further because they may be problems with an ancestor
+   directory instead of with the file itself, which means that we
+   don't have reliable info about the requested file.  In practice,
+   though, such errors are common enough that signaling them can be
+   annoying even if the errors are real (e.g., Bug#37445).  So return
+   nil for EACCES unless compiling with -DPICKY_EACCES, which is off
+   by default.  */
+#ifndef PICKY_EACCES
+enum { PICKY_EACCES = false };
+#endif
+
 static Lisp_Object
 file_test_errno (Lisp_Object file, int err)
 {
+  if (!PICKY_EACCES && err == EACCES)
+    return Qnil;
   return file_metadata_errno ("Testing file", file, err);
 }
 
@@ -2745,7 +2759,7 @@ check_file_access (Lisp_Object file, Lisp_Object operation, int amode)
     return Qt;
   int err = errno;
   if (err == EROFS || err == ETXTBSY
-      || (err == EACCES && amode != F_OK
+      || (PICKY_EACCES && err == EACCES && amode != F_OK
 	  && file_access_p (encoded_file, F_OK)))
     {
       errno = err;
-- 
2.17.1