Can use custom targets as executables to run in a run_target.

mesonbuild/backend/ninjabackend.py

@@ -448,6 +448,9 @@ int dummy;
             cmd.append(abs_exe)
         elif isinstance(texe, dependencies.ExternalProgram):
             cmd += texe.get_command()
+        elif isinstance(texe, build.CustomTarget):
+            deps.append(self.get_target_filename(texe))
+            cmd += [os.path.join(self.environment.get_build_dir(), self.get_target_filename(texe))]
         else:
             cmd.append(target.command)
         cmd += arg_strings

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

@@ -37,3 +37,9 @@ run_target('py3hi',
 
 run_target('ct_in_arg',
   command : ['echo', hex, files('helloprinter.c')])
+
+# What if the output of a custom_target is the command to
+# 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])