Log message:
Updated waf to 1.9.7.

NEW IN WAF 1.9.7
----------------
* Conceal Python 2.6 subprocess errors on Unix-like systems
* Read variables from self.vars #1873
* Revert archive permissions to be world-readable #1875

Log message:
Updated waf to 1.9.6.

NEW IN WAF 1.9.6
----------------
* Display @argfile contents in msvcdeps #1831
* Enable configurable preprocessor cache sizes #1833
* Allocate lru cache entries lazily
* Let unity builds use relative paths for msys #1834
* Added --dump-test-scripts to the unit test module #1852
* Added a warning on ant_glob '.' uses #1853
* LaTeX configuration tests output results to config.log
* Accept functools.partial() as task rules #1865

Log message:
Updated waf to 1.9.5.

NEW IN WAF 1.9.5
----------------
* Fix the command-line option for the python executable (--python -> \ 
--pythondir) #1812
* Add support for older PyQt4 bindings #1813
* Expand properly `--xyz=${VAR}` when `shell=False` #1814
* Add qt5 5.7.x new libraries to qt5 tool #1815
* Add install_user and install_group to bld.install/bld.install_as/bld.symlink_as
* Reduce unnecesary build outputs verbosity #1819 #1828
* Prevent broken console encoding settings from causing additional failures #1823
* Let "waf --zones=argfile" display @argfile contents

Log message:
Updated waf to 1.9.4.

NEW IN WAF 1.9.4
----------------
* Enable 'waf dist' in arbitrary paths #1806
* Handle subprocess timeouts in Python 3.3 #1807
* Set the configuration test build class on conf.run_build_cls
* Provide execution order constraints in parallel configuration tests
* Accept Task.cwd as str type

Log message:
Updated waf to 1.9.3.

NEW IN WAF 1.9.3
----------------
* Improve the behaviour of parallel configuration tests (conf.multicheck) #1793
* Fix the Fortran Nag compiler detection #1797
* Detect Qt 5.7 (-std=c++11 flag) #1800
* Detect Boost python on Gentoo #1802
* Update the strip and netcache examples

Log message:
Updated waf to 1.9.2.

NEW IN WAF 1.9.2
----------------
* Fix a Python 3 encoding error when displaying the file hash in 'waf dist' #1769
* Force qt5 static library detection with 'QT5_XCOMPILE=1 QT5_FORCE_STATIC=1 waf \ 
configure' #1588
* Force the parent os.environ value as default in pre-forked processes #1791
* Support flexflags as arguments #1782
* Update a few extensions: xcode, pytest, msvcdeps, cppcheck, win32_opts, codelite
* Store Task.last_cmd selectively, so that extensions can use them \ 
(clang_compilation_database)
* Set TaskBase.keep_last_cmd to keep the last command executed
* New pyqt5 extension #1790
* Remove all non-BSD code from the Waf archive file

NEW IN WAF 1.9.1
----------------

* Execute proceses with run_regular_process when arguments are not serializable #1764
* Do not de-duplicate configuration flags assigned through uselib_store \ 
(conf.check tests)
* Let the documentation scripts generate SVG outputs

Log message:
Updated waf to 1.9.0.

NEW IN WAF 1.9
--------------

* General enhancements:
  - Detect Clang first on many platforms, in particular on FreeBSD #1528
  - Remove Node.cache_sig and Node.sig so that dependencies involve file \ 
contents by default #1580
  - Change cflags in the beginning / cppflags at the end #1505
  - Merge ${FOO}${BAR} flags in commands executed without a shell (no spaces \ 
inserted)
  - Interpret empty command-line defines as integer values for dependency \ 
calculation #1704
  - Waf tools are not cached on "waf configure" by default anymore; \ 
pass conf.load(.., cache=True)
  - Enable a consistent progress bar output #1641
  - Add ${VAR?X} constructs in script expressions to enable simple conditional \ 
outputs
  - Enable 'waf dist' to package arbitrary symlinks in tarballs #1719
  - Enable regexp objects in @extension besides strings for file extensions
  - Match extensions in the order of last definition
  - Task generators are now processed group-by-group, so the next task generators are
    processed when all tasks in a previous group are complete; \ 
bld.post_mode=POST_LAZY
    becomes thus the default (playground/dynamic_build/ examples)
  - Process Qt5 files in the way suggested by the Qt documentation
  - Installation methods install_files/install_as/symlink_as create regular task \ 
generators
    and regular tasks so that installation outputs can be re-used easily
  - Subclass waflib.Build.ConfiguredContext to enable configuration-dependent \ 
user commands
  - Enable @argfile procesing in Task.exec_command when argument limits are exceeded
  - Apply optional tsk.env.PATH values in Task.exec_command
  - Enable ut_str to process scriptlet expressions for C/C++ unit tests
  - Minimize the amount of paths added to unit test environment variable
  - Restore configuration values with Configure.autoconfig='clobber' #1758
  - Rebuilds are applied on file contents so that update_outputs is no longer needed

* Performance highlights:
  - Reduce the key size in bld.task_sigs by adding bld.node_sigs and bld.imp_sigs
  - Remove __hash__ and __eq__ from Context, Node and Task #1629
  - Detect visual studio versions lazily by default
  - Remove the uses of run_once that can consume a lot of memory; add a proper \ 
LRU cache
  - Enable pre-forked builds by default to achieve faster builds, up to 2x \ 
speedup on short-lived processes
  - Enable faster consumers in Runner.py
  - Add the tool 'nobuild.py' to help with performance troubleshooting
  - Enable profiling with the --profile command-line option

* API changes:
  - The minimum Python version required is Python 2.5
  - Add Task.get_cwd()
  - Remove the command called 'update'
  - Remove unused variables and functions:
    - TaskBase.attr()
    - Build.POST_BOTH
    - Options.platform
    - Options.cmds
    - Task.dep_vars (define Task.vars on instances if necessary)
    - Utils.nogc
    - Configure.err_handler
    - All duplicate split() functions from Utils
  - Remove the unused attribute 'mac_resources', use 'mac_files' instead (see \ 
demos/mac_app)
  - Remove qt4 and kde4 from the default modules
  - Refactor msvc.py
  - Task.sig_vars, Task.sig_explit_deps and Task.sig_implicit_deps return None
  - Use relative paths in apply_incpaths by default (and absolute ones when \ 
paths cross drives)
  - Modify Utils.run_once so that it accepts a list of *args
  - Better consistency between check_cfg and check_cc variables
  - task_gen.mapping and task_gen.prec are not defined by default on instances \ 
anymore, but
    instances can still define their own mappings to override the defaults, but in
    that case all mappings/precedences must be present. These features were not \ 
used in Waf 1.8.
  - Do not truncate _task suffixes from Task class names if present

Log message:
Add WAF_REPLACE_EXECUTABLE in waf.mk

The waf tool has been designed as a bundled 3rd party script in a software
tarball. For this reason some vendors freely modify these scripts and are
technically incompatible with the stock one.

Allow to use waf.mk goodies in such circumstances by specifying
"WAF_REPLACE_EXECUTABL=no" in a package's Makefile. Retain the default
behavior of replacing or copying waf into a package unchanged.

Reviewed by <wiz>

Log message:
Use += instead of = for appeding to WAF_ARGS (permitting to add more per-package
WAF_ARGS if needed).

Log message:
Add support for WAF_HAS_MANDIR (by default "yes").

Always forcing `--mandir=' in WAF_ARGS can be problematic for waf-s that do
not support that (e.g. nanomsgxx, ardour). WAF_HAS_MANDIR can be set
per-package to "no" for these packages. Pointed out by <kamil>.

ok <wiz>