make 'gui_app' an interpreter only concept

Since it's deprecated anyway, we don't really want to plumb it all the
way down into the build and backend layers. Instead, we can just turn
it into a `win_subsystem` value in the interpreter if `win_subsystem`
isn't already set.

1 files changed, 12 insertions, 0 deletions

diff --git a/mesonbuild/interpreter/interpreter.py b/mesonbuild/interpreter/interpreter.py
index 125562f..67203bd 100644
--- a/mesonbuild/interpreter/interpreter.py
+++ b/mesonbuild/interpreter/interpreter.py
@@ -3280,6 +3280,18 @@ class Interpreter(InterpreterBase, HoldableObject):
                     outputs.update(o)
 
         kwargs['include_directories'] = self.extract_incdirs(kwargs)
+
+        if targetclass is build.Executable:
+            if kwargs['gui_app'] is not None:
+                if kwargs['win_subsystem'] is not None:
+                    raise InvalidArguments.from_node(
+                        'Executable got both "gui_app", and "win_subsystem" arguments, which are mutually exclusive',
+                        node=node)
+                if kwargs['gui_app']:
+                    kwargs['win_subsystem'] = 'windows'
+            if kwargs['win_subsystem'] is None:
+                kwargs['win_subsystem'] = 'console'
+
         target = targetclass(name, self.subdir, self.subproject, for_machine, srcs, struct, objs,
                              self.environment, self.compilers[for_machine], kwargs)