interpreter: catch '@DEPFILE@' in run_target and raise an exception

If this gets to the backend it will cause an uncaught exception, so
let's catch it here and just give a real error.

1 files changed, 4 insertions, 0 deletions

diff --git a/mesonbuild/interpreter/interpreter.py b/mesonbuild/interpreter/interpreter.py
index 2cf5b7a5b..a682bc822 100644
--- a/mesonbuild/interpreter/interpreter.py
+++ b/mesonbuild/interpreter/interpreter.py
@@ -2172,6 +2172,10 @@ class Interpreter(InterpreterBase, HoldableObject):
                 raise InterpreterException(f'Tried to use non-existing executable {i.name!r}')
         if isinstance(all_args[0], str):
             all_args[0] = self.find_program_impl([all_args[0]])
+
+        if '@DEPFILE@' in all_args:
+            raise InterpreterException('run_target does not have support for @DEPFILE@')
+
         name = args[0]
         tg = build.RunTarget(name, all_args, kwargs['depends'], self.subdir, self.subproject, self.environment,
                              kwargs['env'])