(uffi:def-function ("getenv" c-getenv)
((name :cstring))
+ :module "c"
:returning :cstring)
(uffi:def-function ("setenv" c-setenv)
((name :cstring)
(value :cstring)
(overwrite :int))
+ :module "c"
:returning :int)
(uffi:def-function ("unsetenv" c-unsetenv)
((name :cstring))
+ :module "c"
:returning :void)
(defun my-getenv (key)