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@@ -1,24 +1,76 @@ -Autowaf -======= +LV2 +=== -This is autowaf, a bundle of waf and a few extensions intended to be easy to -use directly as source code in a project. Using this as a submodule or subtree -named `waflib` in a project allows waf to be used without including binary -encoded data in the waf script. This gets along with revision control and -distributions better, among other advantages, without losing -self-containedness. +LV2 is a plugin standard for audio systems. It defines a minimal yet extensible +C API for plugin code and a format for plugin "bundles". See +<http://lv2plug.in> for more information. -To use this in a project, add this repository as a directory named `waflib` in -the top level of the project, and link or copy `waf` to the top level. +This package contains specifications (C headers and Turtle files), +documentation generation tools, and example plugins. -Two waf extras are also included: `autowaf.py` and `lv2.py`. +Building and installation requires only Python 2.6. Building the documentation +requires Doxygen. -The `autowaf.py` module is a kitchen sink of Python utilities for building -consistent packages, and can be imported in a wcript as -`waflib.extras.autowaf`. -The `lv2.py` extra defines options for LV2 plugin installation paths. It can -be used by calling `opt.load('lv2')` and `conf.load('lv2')` in the appropriate -locations in a wscript. +Installation +------------ - -- David Robillard <d@drobilla.net> +A typical build looks something like this: + + ./waf configure --prefix=/foo + ./waf + sudo ./waf install + +or, for packaging: + + DESTDIR=/home/packager/lv2root ./waf install + +For help on the other available options, run: + + ./waf --help + +The bundle installation directory can be set with the --lv2dir option, e.g.: + + ./waf configure --lv2dir=/foo/lib/lv2 + +Configuring with `--lv2-user` will install bundles to the user-local location. + + +Packaging +--------- + +Specification bundles are both a build-time and run-time dependency of programs +that use LV2. Programs expect their data to be available somewhere in +`LV2_PATH`. + +See <http://lv2plug.in/pages/filesystem-hierarchy-standard.html> for details on +the standard installation paths. + +Do not split up LV2 bundles, they are self-contained and must remain whole. +Other than that, things may be split to suit distribution needs. For example, +separate packages for specifications, tools, and plugins, may be good idea. + + +Header Installation +------------------- + +By default symbolic links to headers in bundles are installed to `INCLUDEDIR`. +If symbolic links are a problem, configure with `--copy-headers` and copies +will be installed instead. + +Note that include paths relative to `PREFIX` may not be changed, since projects +using LV2 use include paths like: + + #include "lv2/lv2plug.in/ns/ext/urid/urid.h" + + +Documentation +------------- + +Configuring with the --docs option will build the documentation for all the +included specifications if Doxygen is available. For example: + + ./waf configure --docs + ./waf + +Specification documentation is also availabe online at <http://lv2plug.in/ns>. |