This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
+uidsign (uidsign.U):
+ This variable contains the signedness of a uidtype.
+ 1 for unsigned, -1 for signed.
+
uidtype (uidtype.U):
This variable defines Uid_t to be something like uid_t, int,
ushort, or whatever type is used to declare user ids in the kernel.