vala: add a method to get a generated vala header

This allows targets that don't link with a vala target to rely on the
header generation.

1 files changed, 12 insertions, 0 deletions

diff --git a/docs/markdown/snippets/vala-target-extra-methods.md b/docs/markdown/snippets/vala-target-extra-methods.md
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+## Vala BuildTarget dependency enhancements
+
+A BuildTarget that has Vala sources can now get a File dependency for its
+generated header.
+
+```meson
+lib = library('foo', 'foo.vala')
+lib_h = lib.vala_header()
+lib_s = static_lib('static', 'static.c', lib_h)
+```
+
+`static.c` will not start compilation until `lib.h` is generated.