Cygwin: testsuite: Drop setting TDIRECTORY

Drop setting TDIRECTORY, just use /tmp in the 'test installation' now
that we have it.

This effectively reverts f3ed5f2fe0

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>

winsup/testsuite/Makefile.am

@@ -334,17 +334,9 @@ DEJATOOL = winsup
 RUNTESTFLAGS_1 = -v
 RUNTESTFLAGS = $(RUNTESTFLAGS_$(V))
 
-# a temporary directory, to be used for files created by tests
-tmpdir = $(abspath $(builddir)/tmp/)
-# the same temporary directory, as an absolute, /cygdrive path (so it can be
-# understood by the test DLL, which will have a different mount table)
-testdll_tmpdir = $(shell cygpath -ma $(tmpdir) | sed -e 's#^\([A-Z]\):#/cygdrive/\L\1#')
-
 site-extra.exp: ../config.status Makefile
 	@rm -f ./tmp0
 	@echo "set runtime_root \"`pwd`/testinst/bin\"" >> ./tmp0
-	@echo "set tmpdir $(tmpdir)" >> ./tmp0
-	@echo "set testdll_tmpdir $(testdll_tmpdir)" >> ./tmp0
 	@echo "set cygrun \"`pwd`/mingw/cygrun\"" >> ./tmp0
 	@mv ./tmp0 site-extra.exp
 

winsup/testsuite/cygrun.c

@@ -26,13 +26,10 @@ main (int argc, char **argv)
 
   if (argc < 2)
     {
-      fprintf (stderr, "Usage: cygrun [program] [tmpdir]\n");
+      fprintf (stderr, "Usage: cygrun [program]\n");
       exit (0);
     }
 
-  if (argc >= 3)
-    SetEnvironmentVariable ("TDIRECTORY", argv[2]);
-
   SetEnvironmentVariable ("CYGWIN_TESTING", "1");
 
   memset (&sa, 0, sizeof (sa));

winsup/testsuite/winsup.api/winsup.exp

@@ -62,10 +62,8 @@ foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.c $srcdir/$subdir/*/*.{cc
 	    } else {
 	       set redirect_output /dev/null
 	    }
-	    file mkdir $tmpdir/$tmpfile
 	    set env(PATH) "$runtime_root:$env(PATH)"
-	    ws_spawn "cygdrop $cygrun $exec $testdll_tmpdir/$tmpfile > $redirect_output"
-	    file delete -force $tmpdir/$tmpfile
+	    ws_spawn "cygdrop $cygrun $exec > $redirect_output"
 	    set env(PATH) "$orig_path"
 	    if { $rv } {
 		fail "$testcase"