Merge tag 'upstream/2.5.0'

Upstream version 2.5.0

1 files changed, 52 insertions, 44 deletions

diff --git a/RELEASE.txt b/RELEASE.txt
index 71e6b9b..8bbffb9 100644
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -1,69 +1,77 @@
-  A new SCons release, 2.4.1, is now available
+  A new SCons checkpoint release, 2.5.0, is now available
   on the SCons download page:
 
           http://www.scons.org/download.php
 
-    Here is a summary of the changes since 2.4.0:
+  XXX The primary purpose of this release ... XXX
+
+  Here is a summary of the changes since 2.4.1:
 
   NEW FUNCTIONALITY
-    - InstallVersionedLib now available in the DefaultEnvironment context.
-    - Added new configure check, CheckProg, to check for existence of a program.
-    - Add support `Microsoft Visual C++ Compiler for Python 2.7' 
-      Compiler can be obtained at: https://www.microsoft.com/en-us/download/details.aspx?id=44266
+    -  We're enhancing implicit language scanning functionality to improve
+       correctness.  SCons now honors scanner keys for implicit dependencies
+       and correctly changes scanner type (if necessary) when traversing 
+       implicit dependency trees.  
+
+       This enhancement resolves missing dependencies
+       with built-in scanners including SWIG (#2264) and QT:
+       * http://scons.tigris.org/issues/show_bug.cgi?id=2264
+
+       -  This enhancement broadens the horizon for handling heterogeneous
+          data flow environments (E.G. software builds):
+          - http://article.gmane.org/gmane.comp.programming.tools.scons.user/26596
+
+       - SCons may find new (and correct) dependencies in cross-langauge contexts.
+         - Update may cause rebuilds, especially in heterogeneous data environments.
+         - Update may find previously missed dependencies errors (E.G. cycles).
+           - Discovered in some QT test cases.
+       - SCons handles the SCANNERS variable differently.
+         -  Previously, the Install builder would scan implicit dependencies for
+            a scanner found in SCANNERS (but not for built-in scanners), but now
+            the Install builder will not scan recursively regardless in order
+            to optimize Install behaviour and bring orthogonality to previous behaviour.
+
+    - New external tool scons-configurecache which allows some configuration of
+      how files in the cache are controlled.
 
   DEPRECATED FUNCTIONALITY
 
+    - None
+
   CHANGED/ENHANCED EXISTING FUNCTIONALITY
 
-    - Reimplemented versioning for shared libraries, with the following effects
-    - Fixed tigris issues #3001, #3006.
-    - Fixed several other issues not reported to tigris, including:
-      issues with versioned libraries in subdirectories with tricky names,
-      issues with versioned libraries and variant directories,
-      issue with soname not being injected to library when using D linkers,
-    - Switched to direct symlinks instead of daisy-chained ones -- soname and
-      development symlinks point directly to the versioned shared library now),
-      for rationale see:
-      https://www.debian.org/doc/debian-policy/ch-sharedlibs.html
-      https://fedoraproject.org/wiki/Packaging:Guidelines#Devel_Packages
-      https://bitbucket.org/scons/scons/pull-requests/247/new-versioned-libraries-gnulink-cyglink/diff#comment-10063929
-    - New construction variables to allow override default behavior: SONAME,
-      SHLIBVERSIONFLAGS, _SHLIBVERSIONFLAGS, SHLIBNOVERSIONSYMLINKS,
-      LDMODULEVERSION, LDMODULEVERSIONFLAGS, _LDMODULEVERSIONFLAGS,
-      LDMODULENOVERSIONSYMLINKS.
-    - Changed logic used to configure the versioning machinery from
-      platform-centric to linker-oriented.
-    - The SHLIBVERSION/LDMODULEVERSION variables are no longer validated by
-      SCons (more freedom to users).
-    - InstallVersionedLib() doesn't use SHLIBVERSION anymore.
-    - Enchanced docs for the library versioning stuff.
-    - New tests for versioned libraries.
-    - Library versioning is currently implemented for the following linker
-      tools: 'cyglink', 'gnulink', 'sunlink'.
+    - SCons handles cache directories a bit differently/
+      - Cache files are now stored in 256 subdirectories in the cache directory by 
+        default (this stresses NFS less). Existing cache directories will remain as
+        current, but SCons will prompt you to run scons-configure-cache which will
+        allow you to migrate to the new layout, or confirm you want to use the
+        existing layout.
 
   FIXES
 
-    - Fix for issue #2840 - Fix for two environments specifying same target with different
-      actions not throwing hard error. Instead SCons was incorrectly issuing a warning
-      and continuing.
-    - Fix to swig tool - pick-up 'swig', 'swig3.0' and 'swig2.0' (in order).
-    - Fix to swig tool - respect env['SWIG'] provided by user.
-    - Fix for Bug # 2791 - Setup.py fails unnecessarily under Jython.
-    - Fixed license of SVG titlepage files in the context of Debian
-      packaging, such that they allow for commercial use too (#2985).
-    - Fixed tigris issue #3011: Glob() excludes didn't work when used with VariantDir(duplicate=0)
-    - Fix bug 2831 and allow Help() text to be appended to AddOption() help.
+    - This enhancement resolves missing dependencies with built-in scanners including
+      SWIG (#2264) and QT - See New Features above
+       * http://scons.tigris.org/issues/show_bug.cgi?id=2264
 
   IMPROVEMENTS
 
+    - None
+
   PACKAGING
 
+    - None
+
   DOCUMENTATION
 
+    - None
+
   DEVELOPMENT
 
-  Thanks to Arfrever Frehtes Taifersar Arahesis, Dirk Baechle, William Blevins, Carnë Draug, Andrew Featherstone, Hiroaki Itoh, Florian Miedniak, William Roberts, Paweł Tomulik  for their contributions to this release.
+    - None
+
+  Thanks to Dirk Baechle, William Blevins, William Deegan, Jakub Pola, Adarsh Sanjeev, Tom Tanner
+  for their contributions to this release.
   Contributors are listed alphabetically by their last name.
 
-Copyright (c) 2001 - 2015 The SCons Foundation
-src/RELEASE.txt rel_2.4.1:3453:73fefd3ea0b0 2015/11/09 03:25:05 bdbaddog
+Copyright (c) 2001 - 2016 The SCons Foundation
+src/RELEASE.txt rel_2.5.0:3543:937e55cd78f7 2016/04/09 11:29:54 bdbaddog