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-rw-r--r--doc/guides/contributing/coding_style.rst15
1 files changed, 14 insertions, 1 deletions
diff --git a/doc/guides/contributing/coding_style.rst b/doc/guides/contributing/coding_style.rst
index a5d5897..449b334 100644
--- a/doc/guides/contributing/coding_style.rst
+++ b/doc/guides/contributing/coding_style.rst
@@ -852,12 +852,15 @@ allow_experimental_apis
build
**Default Value = true**
Used to optionally compile a library, based on its dependencies or
- environment. A simple example of use would be:
+ environment. When set to "false" the ``reason`` value, explained below, should
+ also be set to explain to the user why the component is not being built.
+ A simple example of use would be:
.. code-block:: python
if not is_linux
build = false
+ reason = 'only supported on Linux'
endif
@@ -938,6 +941,13 @@ objs
objects that were compiled up as part of another target given in the
included library ``meson.build`` file.
+reason
+ **Default Value = '<unknown reason>'**.
+ This variable should be used when a library is not to be built i.e. when
+ ``build`` is set to "false", to specify the reason why a library will not be
+ built. For missing dependencies this should be of the form
+ ``'missing dependency, "libname"'``.
+
version
**Default Value = 1**.
Specifies the ABI version of the library, and is used as the major
@@ -991,6 +1001,9 @@ pkgconfig_extra_libs
using static libraries. Anything added here will be appended to the end
of the ``pkgconfig --libs`` output.
+reason
+ As above.
+
sources [mandatory]
As above