diff --git a/winsup/utils/ChangeLog b/winsup/utils/ChangeLog
index 672e9af83..2217364b2 100644
--- a/winsup/utils/ChangeLog
+++ b/winsup/utils/ChangeLog
@@ -1,3 +1,9 @@
+2004-02-11  Corinna Vinschen  <corinna@vinschen.de>
+
+	* strace.cc (opts): Add leading '+' to force posixly correct
+	behaviour.
+	(main): Revert POSIXLY_CORRECT manipulations.
+
 2004-02-10  Christopher Faylor  <cgf@redhat.com>
 
 	* strace.cc (main): Guard against previous setting of POSIXLY_CORRECT.
diff --git a/winsup/utils/strace.cc b/winsup/utils/strace.cc
index df420240d..633aa55a9 100644
--- a/winsup/utils/strace.cc
+++ b/winsup/utils/strace.cc
@@ -870,7 +870,7 @@ struct option longopts[] = {
   {NULL, 0, NULL, 0}
 };
 
-static const char *const opts = "b:dhfm:no:p:S:tTuvw";
+static const char *const opts = "+b:dhfm:no:p:S:tTuvw";
 
 static void
 print_version ()
@@ -903,15 +903,12 @@ main (int argc, char **argv)
   pid_t pid = 0;
   int opt;
   int toggle = 0;
-  int posixly_correct_set = getenv ("POSIXLY_CORRECT") != NULL;
 
   if (!(pgm = strrchr (*argv, '\\')) && !(pgm = strrchr (*argv, '/')))
     pgm = *argv;
   else
     pgm++;
 
-  if (!posixly_correct_set)
-    (void) putenv("POSIXLY_CORRECT=1");
   while ((opt = getopt_long (argc, argv, opts, longopts, NULL)) != EOF)
     switch (opt)
       {
@@ -996,8 +993,6 @@ character #%d.\n", optarg, (int) (endptr - optarg), endptr);
   if (!ofile)
     ofile = stdout;
 
-  if (!posixly_correct_set)
-    putenv ("POSIXLY_CORRECT=");
   if (toggle)
     dotoggle (pid);
   else