New upstream version 3.1.0upstream/3.1.0

1 files changed, 70 insertions, 32 deletions

diff --git a/RELEASE.txt b/RELEASE.txt
index 90cc745..5927ef8 100755
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -1,43 +1,81 @@
-A new SCons release, 3.0.5, is now available on the SCons download page:
+  A new SCons checkpoint release, 3.1.0, is now available
+  on the SCons download page:
 
-        https://scons.org/pages/download.html
+          https://scons.org/pages/download.html
 
+  Here is a summary of the changes since 3.0.5:
 
-Here is a summary of the changes since 3.0.4:
+  NEW FUNCTIONALITY
 
-CHANGED/ENHANCED EXISTING FUNCTIONALITY
+    - Added variable TEMPFILEARGJOIN to specify how to join arguments written
+      to temp files used when command lines exceed MAXLINELENGTH when the
+      command uses $TEMPFILE{...}
+    - Support for MSVC 2019
+    - Upgraded and improved Visual Studio solution/project generation code using the MSVSProject builder.
+      - Added support for Visual Studio 2017 and 2019.
+      - Added support for the following per-variant parameters to the builder:
+        - cpppaths: Provides per-variant include paths.
+        - cppdefines: Provides per-variant preprocessor definitions.
 
-  - Change the default for AppendENVPath to delete_existing=0, so path
-    order will not be changed, unless explicitly set (Issue #3276)
-  - Add lex construction variable LEXUNISTD for turning off unix headers on windows
-  - Update lex tool to use win_flex on windows if available
-  - Add the textfile tool to the default tool list
 
-FIXES
+  CHANGED/ENHANCED EXISTING FUNCTIONALITY
 
-  - Fix Issue #3283 - Handle using --config=force in combination with Decider('MD5-timestamp').
-    3.0.2 in fix for issue #2980 added that deciders can throw DeciderNeedsNode exception.
-    The Configure logic directly calls the decider when using --config=force but wasn't handling
-    that exception.  This would yield minimally configure tests using TryLink() not running and
-    leaving TypeError Nonetype exception in config.log
-  - Fix Issue #3303 - Handle --config=force overwriting the Environment passed into Configure()'s
-    Decider and not clearing it when the configure context is completed.
-  - Add default paths for yacc tool on windows to include cygwin, mingw, and chocolatey
-  - Fix issue #2799 - Fix mingw tool to respect SHCCCOMSTR, SHLINKCOMSTR and LDMODULECOMSTR
-  - Fix Issue #3329 - Add support for MS SDK V10.0A (which is commonly installed with VS2017)
-  - Fix Issue #3333 - Add support for finding vswhere under 32 bit windows installs.
-  - Update the MSVC tool to include the nologo flag by default in RCFLAGS
-  - Fixed bug which threw error when running SCons on windows system with no MSVC installed.
+      - Fix performance degradation for MD5-timestamp decider.  NOTE: This changes the Decider() function arguments.
+      From:
+          def my_decider(dependency, target, prev_ni):
+      To:
+          def my_decider(dependency, target, prev_ni, repo_node):
+      Where repo_node is the repository (or other) node to use to check if the node is out of date instead of dependency.
 
+    - Enhanced --debug=explain output. Now the separate components of the dependency list are split up
+      as follows:
 
-IMPROVEMENTS
-  - Do not store build host+user name if reproducible builds are wanted
+      scons: rebuilding `file3' because:
+           the dependency order changed:
+           ->Sources
+           Old:xxx	New:zzz
+           Old:yyy	New:yyy
+           Old:zzz	New:xxx
+           ->Depends
+           ->Implicit
+           Old:/usr/bin/python	New:/usr/bin/python
 
+    - Changed: Pseudo-builders now inherit OverrideEnvironments. For
+      example when calling a pseudo-builder from another
+      pseudo-builder the override variables passed to the first
+      pseudo-builder call had to be explicitly passed on to the
+      internal pseudo-builder call. Now the second pseudo-builder call
+      will automatically inherit these override values.
 
-git shortlog --no-merges -ns 3.0.4..HEAD
-    34  William Deegan
-    33  Mats Wichmann
-    18  Daniel
-     4  Daniel Moody
-     3  Bernhard M. Wiedemann
-     2  Maciej Kumorek
+  FIXES
+    - Fix Issue #3350 - SCons Exception EnvironmentError is conflicting with Python's EnvironmentError.
+    - Fix spurious rebuilds on second build for cases where builder has > 1 target and the source file
+      is generated. This was causing the > 1th target to not have it's implicit list cleared when the source
+      file was actually built, leaving an implicit list similar to follows for 2nd and higher target
+              ['/usr/bin/python', 'xxx', 'yyy', 'zzz']
+      This was getting persisted to SConsign and on rebuild it would be corrected to be similar to this
+              ['zzz', 'yyy', 'xxx', '/usr/bin/python']
+      Which would trigger a rebuild because the order changed.
+      The fix involved added logic to mark all shared targets as peers and then ensure they're implicit
+      list is all cleared together.
+    - Fix Issue #3349 - SCons Exception EnvironmentError is conflicting with Python's EnvironmentError.
+      Renamed to SConsEnvironmentError
+    - Fix Issue #3350 - mslink failing when too many objects.  This is resolved by adding TEMPFILEARGJOIN variable
+      which specifies what character to join all the argements output into the tempfile. The default remains a space
+      when mslink, msvc, or mslib tools are loaded they change the TEMPFILEARGJOIN to be a line separator (\r\n on win32)
+    - Additional fix to issue #3135 - Also handle 'pure' and 'elemental' type bound procedures
+
+    - Fix handling of Visual Studio Compilers to properly reject any unknown HOST_PLATFORM or TARGET_PLATFORM
+    - Enable LaTeX scanner to find more than one include per line
+    
+      under which they would be observed), or major code cleanups
+
+git shortlog --no-merges -ns 3.0.5..HEAD
+    64  William Deegan
+    56  Mats Wichmann
+    10  Adam Gross
+     4  Mathew Robinson
+     4  Peter Diener
+     3  Lukas Schrangl
+     1  Daniel Holth
+     1  bdbaddog