All_args should always be a list. Closes #778.

mesonbuild/interpreter.py

@@ -1877,6 +1877,8 @@ class Interpreter():
             if not 'command' in kwargs:
                 raise InterpreterException('Missing "command" keyword argument')
             all_args = kwargs['command']
+            if not isinstance(all_args, list):
+                all_args = [all_args]
             deps = kwargs.get('depends', [])
             if not isinstance(deps, list):
                 deps = [deps]

test cases/common/58 run target/meson.build

@@ -42,4 +42,4 @@ run_target('ct_in_arg',
 # execute. Obviously this will not work as hex is not an
 # executable but test that the output is generated correctly.
 run_target('donotrunme',
-  command : [hex])
+  command : hex)