Changes between Version 9 and Version 10 of BuildSystem

Timestamp:

Nov 26, 2009, 5:45:02 PM (15 years ago)

Author:

becoulet

Comment:

--

BuildSystem

@@ -123 +123 @@
  `default value`::
    Set the token default value. `defined` and `undefined` values act as booleans.
+ `depend TOKEN […]`::
+   Dependencies, having at least one of the tokens on the line is required, if unsatisfied the current token gets undefined and a warning is emitted. May be used to disable features because of missing prerequisites.
  `parent TOKEN`::
-   Parent token in help screen. This is only for pretty-printing and allow hidding unrelevant tokens if the parent token is undefined.
+   Hierarchical dependency, it ensures all token with a parent gets silently undefined if the parent is undefined. This prevents options enabled by default to stay enabled if the parent is disabled; this way it avoids errors due to unneeded requirements. This is also used to hide unrelevant tokens from the help screen if the parent token is undefined.
  `require TOKEN […]`::
    Mandatory requirements, having at least one of the tokens on the line is mandatory, conflict yields error. May be usd to enforce definition of some mandatory configuration values.
- `depend TOKEN […]`::
-   Dependencies, having at least one of the tokens on the line is mandatory, conflict implicitly undefines the current token. May be used to disable features because of missing prerequisites.
  `provide TOKEN […]`::
    Defining the current token enforce definition of the specified token.