Fix handling of special directory name . in POV-Ray for Windows.

Author: c-lipka

changes.txt

@@ -49,11 +49,16 @@ Reported via the Newsgroups:
     (2017-01-27, povray.beta-test, "utf8")
     Crash when using `charset utf8`.
 
+  - <[email protected]>
+    (2017-02-16, povray.beta-test, "Windows beta.2-QA09T.msvc10.win64 does not accept "./" as a path")
+    Special directory name `.` not handled properly in POV-Ray for Windows.
+
 Miscellaneous:
 
   - Optional fields in macro parameters or tuple assignments now accept
     uninitialized directory entries.
   - Some minor fixes to the Windows inbuilt help.
+  - Increased thread stack size on Linux machines.
 
 Other Noteworthy
 ----------------

platform/windows/syspovpath.cpp

@@ -8,7 +8,7 @@
 /// @parblock
 ///
 /// Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
-/// Copyright 1991-2016 Persistence of Vision Raytracer Pty. Ltd.
+/// Copyright 1991-2017 Persistence of Vision Raytracer Pty. Ltd.
 ///
 /// POV-Ray is free software: you can redistribute it and/or modify
 /// it under the terms of the GNU Affero General Public License as
@@ -163,12 +163,15 @@ bool Path::ParsePathString (UCS2String& volume, vector<UCS2String>& dirnames, UC
     {
         if (POV_IS_PATH_SEPARATOR(*i))
         {
-            if (!stash.empty() && !IsCurrentDir(stash))
+            if (!stash.empty())
             {
-                if (!dirnames.empty() && IsParentDir(stash))
-                    dirnames.pop_back();
-                else
-                    dirnames.push_back (stash);
+                if (!IsCurrentDir(stash))
+                {
+                    if (!dirnames.empty() && IsParentDir(stash))
+                        dirnames.pop_back();
+                    else
+                        dirnames.push_back (stash);
+                }
                 stash.clear();
             }
         }

revision.txt

@@ -30,6 +30,26 @@ Notes:
 POV-Ray v3.7.1-TBD
 ------------------------------------------------------------------------------
 
+Commit b4605a5 on 2017-02-14 by William F. Pokorny (wfpokorny)
+
+    Fixing thread stack size overrun crash. (#235)
+
+    Fixes Dick Balaska's seg fault as report in beta-test newsgroup on
+    February 12, 2017. In particular we are extending the
+    POV_THREAD_STACK_SIZE macro mechanism to all NewBoostThread
+    calls.
+
+Commit 0e8dbe8 on 2017-02-08 by William F. Pokorny (wfpokorny)
+
+    Adding POV_THREAD_STACK_SIZE macro. (#231)
+
+    Unix default is 4MB due regression, otherise 2MB. Checks added for a min
+    size of 64KB.
+
+Commit 060464b on 2017-02-05 by Christoph Lipka
+
+    [ci skip] Minor update to `README.md`.
+
 Commit cfaa14d on 2017-02-05 by Christoph Lipka
 
     [ci skip] Update POV-Ray for Windows "about" box.