From 99641c468f7c9c477ae84b19ebc0342d574b2261 Mon Sep 17 00:00:00 2001
From: Brian Cox <BrianRCox@gmail.com>
Date: Sat, 23 Sep 2017 13:19:40 -0700
Subject: [PATCH] Add a platform macro indicating whether OS lets temp files be
 unlinked while open

---
 src/core/file_unix.cpp | 4 ++--
 src/core/platform.h    | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/core/file_unix.cpp b/src/core/file_unix.cpp
index 963bc9e..8144aa0 100644
--- a/src/core/file_unix.cpp
+++ b/src/core/file_unix.cpp
@@ -94,7 +94,7 @@ cFile_i::~cFile_i()
         fclose( mpCurrStream );
         mpCurrStream = NULL;
 
-#if IS_AROS || IS_RISCOS
+#if !CAN_UNLINK_WHILE_OPEN // so unlink after close instead
         if( mFlags & cFile::OPEN_LOCKED_TEMP )
         {
             // unlink this file 
@@ -209,7 +209,7 @@ void cFile::Open( const TSTRING& sFileNameC, uint32 flags )
     }
     mpData->m_fd = fh;
 
-#if !IS_AROS && !IS_RISCOS
+#if CAN_UNLINK_WHILE_OPEN
     if( flags & OPEN_LOCKED_TEMP )
     {
         // unlink this file 
diff --git a/src/core/platform.h b/src/core/platform.h
index 87a904f..7faeb7e 100644
--- a/src/core/platform.h
+++ b/src/core/platform.h
@@ -328,6 +328,9 @@
 
 #define SUPPORTS_TERMIOS            (!IS_RTEMS && !IS_REDOX)
 // RTEMS errors are probably just a buildsys issue & this will change or go away.
+// Redox will probably implement this in the future.
+
+#define CAN_UNLINK_WHILE_OPEN       (!IS_AROS && !IS_RISCOS && !IS_REDOX)
 
 #define SUPPORTS_DOUBLE_SLASH_PATH  (IS_CYGWIN)
 // POSIX standard says paths beginning with 2 slashes are "implementation defined"