Switch PBS launch support to pbs_tmrsh

Don't link against the TM library as that can introduce
library confusion across common dependencies. Instead,
use the pbs_tmrsh tool ala ssh to execute a TBON launch.

Signed-off-by: Ralph Castain <rhc@pmix.org>

Author: rhc54

.gitignore

@@ -45,6 +45,8 @@ cov-int
 Makefile
 Makefile.in
 static-components.h
+static-components.h.new.extern
+static-components.h.new.struct
 *\\#
 config.cache
 aclocal.m4

config/prte_check_pbs.m4

@@ -0,0 +1,90 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
+#                         University Research and Technology
+#                         Corporation.  All rights reserved.
+# Copyright (c) 2004-2005 The University of Tennessee and The University
+#                         of Tennessee Research Foundation.  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 (c) 2009-2020 Cisco Systems, Inc.  All rights reserved
+# Copyright (c) 2016      Los Alamos National Security, LLC. All rights
+#                         reserved.
+# Copyright (c) 2017-2019 Intel, Inc.  All rights reserved.
+# Copyright (c) 2021-2026 Nanook Consulting  All rights reserved.
+# Copyright (c) 2022      Amazon.com, Inc. or its affiliates.
+#                         All Rights reserved.
+# $COPYRIGHT$
+#
+# Additional copyrights may follow
+#
+# $HEADER$
+#
+
+# PRTE_CHECK_PBS(prefix, [action-if-found], [action-if-not-found])
+# --------------------------------------------------------
+AC_DEFUN([PRTE_CHECK_PBS],[
+    PRTE_VAR_SCOPE_PUSH([prte_check_pbs_save_PATH])
+
+	AC_ARG_WITH([pbs],
+           [AS_HELP_STRING([--with-pbs],
+                           [Build PBS scheduler and launch components (default: no)])])
+
+    prte_check_pbs_save_PATH="$PATH"
+    PRTE_PBSTRMSH_PATH=
+	if test -z "$with_pbs" || test "$with_pbs" = "no" ; then
+            prte_check_pbs_happy="no"
+	elif test "$with_pbs" = ""  || test "$with_pbs" = "yes"; then
+        prte_check_pbs_happy="yes"
+    else
+        prte_check_pbs_happy="yes"
+        PATH="$with_pbs/bin:$PATH"
+    fi
+
+    AS_IF([test "$prte_check_pbs_happy" = "yes"],
+          [ # unless user asked, only build pbs component on linux
+            # as that is the platforms that PBS supports
+            case $host in
+            *-linux*)
+                    prte_check_pbs_happy="yes"
+                    ;;
+            *)
+                    AC_MSG_WARN([PBS support was requested, but we are not on])
+                    AC_MSG_WARN([a supported environment (linux). PBS support])
+                    AC_MSG_WARN([threfore cannot be built. Please correct and])
+                    AC_MSG_WARN([try again.])
+                    AC_MSG_ERROR([Cannot continue])
+                    ;;
+            esac
+        ])
+
+    AS_IF([test "$prte_check_pbs_happy" = "yes"],
+          [AC_MSG_CHECKING([for pbs_tmrsh in PATH])
+           PRTE_WHICH([pbs_tmrsh], [PRTE_PBSTRMSH_PATH])
+           if test "$PRTE_PBSTRMSH_PATH" = ""; then
+             if test "$with_pbs" != "" && test "$with_pbs" != "yes" ; then
+                AC_MSG_RESULT([no])
+                AC_MSG_WARN([PBS path was specified, but pbs_tmrsh was not found])
+                AC_MSG_WARN([in $with_pbs/bin. Please correct the path and try again])
+                AC_MSG_ERROR([Cannot continue])
+             else
+                AC_MSG_RESULT([no])
+             fi
+           else
+             AC_MSG_RESULT([yes: $PRTE_PBSTRMSH_PATH])
+           fi
+          ])
+
+    PATH="$prte_check_pbs_save_PATH"
+    PRTE_SUMMARY_ADD([Resource Managers], [PBS], [], [$prte_check_pbs_happy])
+
+    AC_SUBST(PRTE_PBSTRMSH_PATH)
+    AS_IF([test "$prte_check_pbs_happy" = "yes"],
+          [$2],
+          [$3])
+
+    PRTE_VAR_SCOPE_POP
+])