* include/pmacros.h, psx01/init.c, psx01/system.h, psx13/main.c,
psxbarrier01/main.c, psxchroot01/main.c, psxfatal_support/init.c,
psxfile01/main.c, psxfile01/test.c, psxmount/main.c, psxrdwrv/main.c,
psxreaddir/main.c, psxrwlock01/main.c, psxspin01/main.c,
psxstat/main.c, psxtime/main.c: Change TEST_INIT to CONFIGURE_INIT.
Make tmacros.h available to all POSIX tests. Add a clock_settime case
for < 1988.
PR 1262/filesystem
* Makefile.am, configure.ac, include/pmacros.h: Add support for readv()
and writev() including documentation and test case.
* psxrdwrv/.cvsignore, psxrdwrv/Makefile.am, psxrdwrv/main.c,
psxrdwrv/psxrdwrv.scn, psxrdwrv/test.c: New files.