Update upstream source from tag 'upstream/3.1.0'

Update to upstream version '3.1.0'
with Debian dir 248b875f378ce1bab3315f6ed2cecdf63a4cc3cc

1 files changed, 97 insertions, 1 deletions

diff --git a/CHANGES.txt b/CHANGES.txt
index c46a804..a23140c 100755
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -4,6 +4,102 @@
 
                             Change Log
 
+RELEASE 3.1.0 - Mon, 20 Jul 2019 16:59:23 -0700
+
+  From Joseph Brill:
+    - Code to supply correct version-specifier argument to vswhere for
+      VS version selection.
+
+  From William Deegan:
+    - Enhanced --debug=explain output. Now the separate components of the dependency list are split up
+      as follows:
+      
+      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
+    - 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)
+    - 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.
+
+  From Peter Diener:
+    - Additional fix to issue #3135 - Also handle 'pure' and 'elemental' type bound procedures
+    - Fix issue #3135 - Handle Fortran submodules and type bound procedures
+
+  From Adam Gross:
+    - 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.
+
+  From Michael Hartmann:
+    - Fix handling of Visual Studio Compilers to properly reject any unknown HOST_PLATFORM or TARGET_PLATFORM
+
+  From Bert Huijben:
+    - Added support for Visual Studio 2019 toolset.
+
+  From Mathew Robinson:
+    - Update cache debug output to include cache hit rate.
+    - No longer unintentionally hide exceptions in Action.py
+    - Allow builders and pseudo-builders to inherit from OverrideEnvironments
+
+  From Leonard de Ruijter:
+    - Add logic to derive correct version argument to vswhere
+
+  From Lukas Schrangl:
+    - Enable LaTeX scanner to find more than one include per line
+
+  From Mats Wichmann:
+    - scons-time takes more care closing files and uses safer mkdtemp to avoid
+      possible races on multi-job runs.
+    - Use importlib to dynamically load tool and platform modules instead of imp module
+    - sconsign: default to .sconsign.dblite if no filename is specified.
+      Be more informative in case of unsupported pickle protocol (py2 only).
+    - Fix issue #3336 - on Windows, paths were being added to PATH even if
+      tools were not found in those paths.
+    - More fixes for newer Java versions (since 9): handle new jdk directory
+      naming (jdk-X.Y instead of jdkX.Y) on Windows; handle two-digit major
+      version. Docstrings improved.
+    - Fixups for pylint: exception types, redefined functions, 
+      globals, etc.  Some old code removed to resolve issues (hashlib is
+      always present on modern Pythons; no longer need the code for
+      2.5-and-earlier optparse). cmp is not a builtin function in Py3,
+      drop one (unused) use; replace one.  Fix another instance of
+      renaming to SConsEnvironmentError. Trailing whitespace.
+      Consistently use not is/in (if not x is y -> if x is not y).
+    - Add a PY3-only function for setting up the cachedir that should be less
+      prone to races. Add a hack to the PY2 version (from Issue #3351) to
+      be less prone to a race in the check for old-style cache.
+    - Fix coding error in docbook tool only exercised when using python lxml 
+    - Recognize two additional GNU compiler header directory options in
+      ParseFlags: -iquote and -idirafter.
+    - Fix more re patterns that contain \ but not specified as raw strings
+      (affects scanners for D, LaTeX, swig)
+
 
 RELEASE 3.0.5 - Mon, 26 Mar 2019 15:04:42 -0700
 
@@ -24,7 +120,7 @@ RELEASE 3.0.5 - Mon, 26 Mar 2019 15:04:42 -0700
   From Maciej Kumorek:
     - Update the MSVC tool to include the nologo flag by default in RCFLAGS
 
-  From Daniel Moody:
+From Daniel Moody:
     - Change the default for AppendENVPath to delete_existing=0, so path
       order will not be changed, unless explicitly set (Issue #3276)
     - Fixed bug which threw error when running SCons on windows system with no MSVC installed.