diff --git a/configure.ac b/configure.ac
index 3b9e712d4b..daa54567a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1101,7 +1101,7 @@ ompi_show_title "Library and Function tests"
 # vscanf
 
 AC_CHECK_LIB([util], [openpty], [WRAPPER_EXTRA_LIBS="$WRAPPER_EXTRA_LIBS -lutil" LIBLAM_EXTRA_LIBS="$LIBLAMEXTRALIBS -lutil" LIBS="$LIBS -lutil]")
-AC_CHECK_FUNCS([asprintf snprintf vasprintf vsnprintf openpty isatty htonl ntohl htons ntohs getpwuid])
+AC_CHECK_FUNCS([asprintf snprintf vasprintf vsnprintf openpty isatty htonl ntohl htons ntohs getpwuid fork waitpid execve])
 
 #
 # Make sure we can copy va_lists (need check declared, not linkable)
diff --git a/orte/mca/pls/fork/configure.m4 b/orte/mca/pls/fork/configure.m4
new file mode 100644
index 0000000000..8477fb5409
--- /dev/null
+++ b/orte/mca/pls/fork/configure.m4
@@ -0,0 +1,22 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# MCA_pls_fork_CONFIG([action-if-found], [action-if-not-found])
+# -----------------------------------------------------------
+AC_DEFUN([MCA_pls_fork_CONFIG],[
+    AC_CHECK_FUNC([fork], [$1], [$2])
+])dnl
diff --git a/orte/mca/pls/rsh/configure.m4 b/orte/mca/pls/rsh/configure.m4
new file mode 100644
index 0000000000..a6a03ad197
--- /dev/null
+++ b/orte/mca/pls/rsh/configure.m4
@@ -0,0 +1,22 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# MCA_pls_rsh_CONFIG([action-if-found], [action-if-not-found])
+# -----------------------------------------------------------
+AC_DEFUN([MCA_pls_rsh_CONFIG],[
+    AC_CHECK_FUNC([fork], [$1], [$2])
+])dnl