Hi, All of textutils are single threaded. However they don't take advantage of the *_locked() functions, even though 95% of the support config code is there I think. For e.g. there is ./lib/unlocked-io.h which is indirectly included by ./src/*.c but there is a #ifdef USE_UNLOCKED_IO around it. Trying to manually build using this, like: CPPFLAGS=-DUSE_UNLOCKED_IO ./configure; make gives compile errors with the wrong number of arguments to being passed to *_locked(). Also none of ./lib/*.c make any attempt to #include "unlocked-io.h" Padraig. _______________________________________________ Bug-textutils mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-textutils