Use 'generate_basic_compiler_args' for Vala targets

Move '-C' option into 'get_always_args' as we always generate C sources.

Add a branch in the dependency management to perform Vala-specific work
of adding '--pkg' and '--target-glib'.

1 files changed, 12 insertions, 1 deletions

diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
index 419d04f..b903f4c 100644
--- a/mesonbuild/backend/backends.py
+++ b/mesonbuild/backend/backends.py
@@ -419,7 +419,18 @@ class Backend:
         # NOTE: We must preserve the order in which external deps are
         # specified, so we reverse the list before iterating over it.
         for dep in reversed(target.get_external_deps()):
-            commands += dep.get_compile_args()
+            if compiler.language == 'vala':
+                if isinstance(dep, dependencies.PkgConfigDependency):
+                    if dep.name == 'glib-2.0' and dep.version_reqs is not None:
+                        for req in dep.version_reqs:
+                            if req.startswith(('>=', '==')):
+                                commands += ['--target-glib', req[2:]]
+                                break
+                    commands += ['--pkg', dep.name]
+                elif isinstance(dep, dependencies.ExternalLibrary):
+                    commands += dep.get_lang_args('vala')
+            else:
+                commands += dep.get_compile_args()
             # Qt needs -fPIC for executables
             # XXX: We should move to -fPIC for all executables
             if isinstance(target, build.Executable):