* winsup.api/ltp/sbrk01.c (main): Force output at startup to

make sure that stdio file buffer get allocated.
* winsup.api/ltp/stat06.c (high_address_setup): On cygwin, area
after sbrk(0) may be available, use 0xffff0000 as "high address".
* winsup.api/ltp/symlink01.c: Perform all tests. Mark those tests that
don't work on cygwin with '-1'. Close open files so that temporary
directory can be deleted on exit.
* winsup.api/ltp/vfork01.c: New test.

winsup/testsuite/winsup.api/ltp/sbrk01.c

@@ -149,6 +149,13 @@ main(int ac, char **av)
      ***************************************************************/
     setup();
 
+#ifdef __CYGWIN__
+    /* we need to initialize output buffer before first sbrk.
+       otherwise, when memory is freed bu second sbrk, fwrite will
+       fail */
+    tst_resm(TINFO, "Entering test");
+#endif
+
     /***************************************************************
      * check looping state if -c option given
      ***************************************************************/
@@ -243,8 +250,6 @@ setup()
     /* make a temp dir and cd to it */
     tst_tmpdir();
 
-     
-
     /* Pause if that option was specified */
     TEST_PAUSE;
 }	/* End setup() */