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waf/docs/sphinx/tools.rst

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Waf Tools
=========
Special python modules called Waf **tools** provide functions and classes to help
using compilers, libraries or programs. The typical usage from a user script is::
def function(ctx):
# ...
ctx.load('toolname')
Where the function is usually:
* options: add command-line options used by the tool
* configure: modify ``conf.env``, raise a configuration error if a prerequisite is not met
The tools will usually enhance the application by adding:
* new commands deriving from :py:class:`waflib.Context.Context`
* new task classes deriving from :py:class:`waflib.Task.Task`
* new methods to :py:class:`waflib.Configure.ConfigurationContext` and :py:class:`waflib.Build.BuildContext` through :py:func:`waflib.Configure.conf`
* new task generator methods to :py:class:`waflib.TaskGen.task_gen` through :py:func:`waflib.TaskGen.taskgen_method`, :py:func:`waflib.TaskGen.after`
As a general rule, existing methods or classes are hardly ever replaced.
C/C++ compiler detection
------------------------
The following Waf tools are used for loading specific C or C++ compilers. They may
be used directly, for example::
def options(opt):
opt.load('compiler_c')
def configure(conf):
conf.load('compiler_c')
.. toctree::
tools/clang
tools/clangxx
tools/compiler_c
tools/compiler_cxx
tools/ar
tools/gcc
tools/gxx
tools/icc
tools/icpc
tools/suncc
tools/suncxx
tools/xlc
tools/xlcxx
tools/msvc
tools/winres
tools/irixcc
C/C++ support
-------------
The following modules contain the functions and classes required for building C and C++ applications. They
are almost always loaded by other Waf tools. Among these, the most important from a user point of view
is :py:mod:`waflib.Tools.c_config` which provides the :py:func:`waflib.Tools.c_config.check` and
:py:func:`waflib.Tools.c_config.check_cfg` functions.
.. toctree::
tools/ccroot
tools/c
tools/cxx
tools/c_config
tools/c_osx
tools/c_preproc
tools/c_tests
tools/c_aliases
Assembly
--------
The following tools provide support for assembly. The module :py:mod:`waflib.Tools.asm` is loaded automatically by :py:mod:`waflib.Tools.nasm` or :py:mod:`waflib.Tools.gas`.
.. toctree::
tools/gas
tools/nasm
tools/asm
D language and compilers
------------------------
The first three tools in the following list may be used for detecting D compilers. The remaining contain the support functions and classes.
.. toctree::
tools/compiler_d
tools/dmd
tools/ldc2
tools/gdc
tools/d_config
tools/d
tools/d_scan
Fortran support
---------------
The first four tools in the following list are used for detecting fortran compilers. The three remaining contain the routines for compiling fortran applications.
.. toctree::
tools/compiler_fc
tools/g95
tools/gfortran
tools/ifort
tools/fc
tools/fc_config
tools/fc_scan
C/C++-related applications
--------------------------
The next tools provide support for code generators used in C and C++ projects.
.. toctree::
tools/bison
tools/flex
tools/dbus
tools/vala
tools/glib2
tools/qt5
tools/perl
tools/python
tools/ruby
Other compilers and tools
-------------------------
.. _extras: https://gitlab.com/ita1024/waf/tree/master/waflib/extras
The following tools provide support for specific compilers or configurations. More tools are present in the extras_ folder, although they are not documented and as stable as the default tools.
.. toctree::
tools/waf_unit_test
tools/tex
tools/javaw
tools/cs
tools/gnu_dirs
tools/intltool
tools/lua
tools/md5_tstamp
tools/nobuild
tools/wafcache