sourceset: add all_dependencies() method

'if_true' sources should be built with their dependencies, as
illustrated by test case change.

Ideally, I think we would want only the files with the dependencies to
be built with the flags, but that would probably change the way
sourceset are used.

2 files changed, 15 insertions, 0 deletions

diff --git a/docs/markdown/SourceSet-module.md b/docs/markdown/SourceSet-module.md
index fee643a..4b34ff7 100644
--- a/docs/markdown/SourceSet-module.md
+++ b/docs/markdown/SourceSet-module.md
@@ -149,6 +149,17 @@ sources are included (if any).
 
 **Returns**: a list of file objects
 
+#### `all_dependencies()` *(since 0.52.0)*
+
+``` meson
+list source_set.all_dependencies(...)
+```
+
+Returns a list of all dependencies that were placed in the source set
+using `add` (including nested source sets) and that were found.
+
+**Returns**: a list of dependencies
+
 #### `apply()`
 
 ``` meson
diff --git a/docs/markdown/snippets/source_set_enhancements.md b/docs/markdown/snippets/source_set_enhancements.md
new file mode 100644
index 0000000..08e0ae3
--- /dev/null
+++ b/docs/markdown/snippets/source_set_enhancements.md
@@ -0,0 +1,4 @@
+## Enhancements to the source_set module
+
+`SourceSet` objects now provide the `all_dependencies()` method, that
+complement the existing `all_sources()` method.