uefitool: Only define ACCESSPERMS on *nix

I re-read the modified code, and it has defines in place
for building on Windows; I was defining ACCESSPERMS
universally, but it should only be defined for non-Windows
systems, which the context in this code means Linux/BSD.

Signed-off-by: Leah Rowe <leah@libreboot.org>

config/uefitool/patches/0001-common-filesystem-define-ACCESSPERMS-if-undefined.patch

@@ -1,9 +1,9 @@
-From 35f5bbf5aa7dc32f0140147737af73fd3866f455 Mon Sep 17 00:00:00 2001
+From 75437e2253fc70f4e3368c9d030415ce4ae52fa6 Mon Sep 17 00:00:00 2001
 From: Leah Rowe <info@minifree.org>
 Date: Sun, 28 Jul 2024 16:04:30 +0100
 Subject: [PATCH 1/1] common/filesystem: define ACCESSPERMS if undefined
 
-normally defined in sys/stat.h on various libc implementations,
+Normally defined in sys/stat.h on various libc implementations,
 but musl libc doesn't seem to have it, leading to this build
 issue:
 
@@ -19,30 +19,32 @@ ACCESSPERMS is supported on GNU C Library, for compatibility with
 BSD libc implementations; the latter also implements ALLPERMS
 and DEFFILEMODE, which don't seem to be used by uefitool regardless.
 
+Do not define it on the Windows builds; only do it for the others,
+such as Linux.
+
 Signed-off-by: Leah Rowe <info@minifree.org>
 ---
- common/filesystem.cpp | 9 ++++++++-
- 1 file changed, 8 insertions(+), 1 deletion(-)
+ common/filesystem.cpp | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
 
 diff --git a/common/filesystem.cpp b/common/filesystem.cpp
-index b2b8d65..9672e07 100644
+index b2b8d65..af5e537 100644
 --- a/common/filesystem.cpp
 +++ b/common/filesystem.cpp
-@@ -15,6 +15,13 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
- #include <sys/stat.h>
- #include <fstream>
- 
-+/* musl libc does not define ACCESSPERMS, seen on glibc and many bsd libc.
-+ * let's do alpine linux users a massive favour, so that the code compiles.
-+ */
+@@ -75,6 +75,12 @@ UString getAbsPath(const UString & path)
+ #else
+ #include <unistd.h>
+ #include <stdlib.h>
++
++/* musl libc does not define ACCESSPERMS */
 +#ifndef ACCESSPERMS
 +#define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* chmod permission: 0777 */
 +#endif
 +
- bool readFileIntoBuffer(const UString& inPath, UByteArray& buf) 
+ bool isExistOnFs(const UString & path) 
  {
-     if (!isExistOnFs(inPath))
-@@ -103,4 +110,4 @@ UString getAbsPath(const UString & path) {
+     struct stat buf;
+@@ -103,4 +109,4 @@ UString getAbsPath(const UString & path) {
          return UString(abs);
      return path;
  }