The attached patch is taken from coreutils, which uses it to avoid
unused-local-variable warnings when compiling regexec.c.

------- Additional Comment #1 From Paul Eggert 2005-08-21 00:40 -------

Created an attachment (id=603)
avoid uninitialized-variable warnings

------- Additional Comment #2 From Ulrich Drepper 2005-09-06 18:41 -------

This isn't necessarily correct.  If, as suggested in another bug, the
__libc_loc_* definitions are moved into a separate file where they are defined
by the project using the code, then there can be locking operations defined. 
The correct way to do this is define a macro which indicates locking is used.

------- Additional Comment #3 From Ulrich Drepper 2006-04-25 18:18 -------

No reply in 6+ months.  Closing.