unix-ffi/os-path: Add unix-ffi version of os-path package.

This package reuses the code from the python-stdlib version of `os-path`
but requires the unix-ffi version of `os`.

This also updates `glob` to require this version of `os-path`.

Signed-off-by: Jeffery To <[email protected]>

Author: jefferyto

unix-ffi/glob/manifest.py

@@ -1,7 +1,7 @@
 metadata(version="0.5.2")
 
 require("os", unix_ffi=True)
-require("os-path")
+require("os-path", unix_ffi=True)
 require("re", unix_ffi=True)
 require("fnmatch")
 

unix-ffi/os-path/manifest.py

@@ -0,0 +1,6 @@
+metadata(version="0.1.4")
+
+# Originally written by Paul Sokolovsky.
+
+require("os", unix_ffi=True)
+package("os", base_path="../../python-stdlib/os-path")

unix-ffi/os/os/__init__.py

@@ -5,6 +5,12 @@
 import ffilib
 import uos
 
+# Provide optional dependencies (which may be installed separately).
+try:
+    from . import path
+except ImportError:
+    pass
+
 R_OK = const(4)
 W_OK = const(2)
 X_OK = const(1)