Fix link errors on AIX.

* modules/clean-temp (Link): Link with $(LIBTHREAD).
* modules/getumask (Link): Link with $(LIBTHREAD).
* modules/getumask-tests (Makefile.am): Link test-getumask with
$(LIBTHREAD).
* modules/supersede (Link): Link with $(LIBTHREAD).
* modules/supersede-tests (Makefile.am): Link test-supersede with
$(LIBTHREAD).
* modules/fatal-signal (Link): New section.
* modules/execute (Link): New section.
* modules/csharpexec (Link): Link with $(LIBTHREAD).
* modules/javaexec (Link): Link with $(LIBTHREAD).
* modules/spawn-pipe (Link): New section.
* modules/spawn-pipe-tests (Makefile.am): Link test-spawn-pipe-main with
$(LIBTHREAD).
* modules/csharpcomp (Link): Link with $(LIBTHREAD).
* modules/javacomp (Link): Link with $(LIBTHREAD).
* modules/javaversion (Link): Link with $(LIBTHREAD).
* modules/pipe-filter-gi (Link): New section.
* modules/pipe-filter-gi-tests (Makefile.am): Link test-pipe-filter-gi1,
test-pipe-filter-gi2-main with $(LIBTHREAD).
* modules/pipe-filter-ii (Link): New section.
* modules/pipe-filter-ii-tests (Makefile.am): Link test-pipe-filter-ii1,
test-pipe-filter-ii2-main with $(LIBTHREAD).
* modules/term-style-control (Link): New section.
* modules/term-style-control-tests (Makefile.am): Link
test-term-style-control-hello, test-term-style-control-yes with
$(LIBTHREAD).
* modules/wait-process (Link): New section.
* modules/nonblocking-pipe-tests (Makefile.am): Link
test-nonblocking-pipe-main with $(LIBTHREAD).
* modules/nonblocking-socket-tests (Makefile.am): Link
test-nonblocking-socket-main with $(LIBTHREAD).

modules/javaexec

@@ -30,6 +30,7 @@ Include:
 
 Link:
 $(LIB_MBRTOWC)
+$(LIBTHREAD)
 
 License:
 GPL