Can generate targets in subdirectories.

interpreter.py

@@ -138,7 +138,7 @@ class Executable(BuildTarget):
 
 class StaticLibrary(BuildTarget):
     def __init__(self, name, subdir, sources, environment):
-        BuildTarget.__init__(self, subdir, name, sources)
+        BuildTarget.__init__(self, name, subdir, sources)
         prefix = environment.get_static_lib_prefix()
         suffix = environment.get_static_lib_suffix()
         self.filename = prefix + self.name + '.' + suffix

shellgenerator.py

@@ -151,7 +151,8 @@ echo Run compile.sh before this or bad things will happen.
                 break
         if compiler is None:
             raise RuntimeError('No specified compiler can handle file ' + src)
-        abs_src = os.path.join(self.environment.get_source_dir(), src)
+        abs_src = os.path.join(self.environment.get_source_dir(), target.get_source_subdir(), src)
+        print(target.get_source_subdir())
         abs_obj = os.path.join(self.get_target_dir(target), src)
         abs_obj += '.' + self.environment.get_object_suffix()
         commands = []