vala: Fix shared_module linking with export_dynamic executable

Need to generate a vapi and a header, and then use that in the shared
module. Needed for GNOME games.

Closes https://github.com/mesonbuild/meson/issues/3538

3 files changed, 44 insertions, 0 deletions

diff --git a/test cases/vala/24 export dynamic shared module/app.vala b/test cases/vala/24 export dynamic shared module/app.vala
new file mode 100644
index 0000000..e016ecd
--- /dev/null
+++ b/test cases/vala/24 export dynamic shared module/app.vala
@@ -0,0 +1,21 @@
+const string MODULE_LIB = "libapp_module.so";
+
+delegate int ModuleFunc ();
+
+public int app_func () {
+  return 41;
+}
+
+int main () {
+  Module module;
+  void *func;
+  unowned ModuleFunc mfunc;
+
+  module = Module.open (MODULE_LIB, ModuleFlags.BIND_LAZY);
+  module.symbol ("module_func", out func);
+  mfunc = (ModuleFunc) func;
+
+  print ("%d\n", mfunc ());
+
+  return 0;
+}
diff --git a/test cases/vala/24 export dynamic shared module/meson.build b/test cases/vala/24 export dynamic shared module/meson.build
new file mode 100644
index 0000000..9aa9fd9
--- /dev/null
+++ b/test cases/vala/24 export dynamic shared module/meson.build
@@ -0,0 +1,20 @@
+project ('test', ['c', 'vala'], version: '0.1')
+
+deps = [
+  dependency ('glib-2.0'),
+  dependency ('gmodule-2.0'),
+]
+
+app = executable (
+  'app',
+  ['app.vala'],
+  dependencies: deps,
+  export_dynamic: true
+)
+
+shared_module (
+  'app_module',
+  ['module.vala'],
+  link_with: app,
+  dependencies : deps,
+)
diff --git a/test cases/vala/24 export dynamic shared module/module.vala b/test cases/vala/24 export dynamic shared module/module.vala
new file mode 100644
index 0000000..5553727
--- /dev/null
+++ b/test cases/vala/24 export dynamic shared module/module.vala
@@ -0,0 +1,3 @@
+public int module_func () {
+  return app_func() + 1;
+}