Add autoconf support for PAM module.

auxdir/Makefile.am

@@ -16,6 +16,7 @@ EXTRA_DIST = \
     x_ac_elan.m4 \
     x_ac_federation.m4 \
     x_ac_gpl_licensed.m4 \
+    x_ac_pam.m4 \
     x_ac_munge.m4 \
     x_ac_ncurses.m4 \
     x_ac_ptrace.m4 \

auxdir/x_ac_pam.m4

+##*****************************************************************************
+#  $Id$
+##*****************************************************************************
+#  AUTHOR:
+#    Morris Jette <jette1@llnl.gov>
+#
+#  SYNOPSIS:
+#    X_AC_PAM
+#
+#  DESCRIPTION:
+#    Test for PAM (Pluggable Authentication Module) support.
+#
+#  WARNINGS:
+#    This macro must be placed after AC_PROG_CC or equivalent.
+##*****************************************************************************
+
+AC_DEFUN([X_AC_PAM], [
+
+  AC_CHECK_LIB([pam],
+        [pam_get_user],
+        [ac_have_pam=yes; PAM_LIBS="-lpam"])
+                                                                                                     
+  AC_SUBST(PAM_LIBS)
+  AM_CONDITIONAL(HAVE_PAM, test "x$ac_have_pam" = "xyes")
+  if test "x$ac_have_pam" = "xyes"; then
+    AC_DEFINE(HAVE_PAM, 1, [define if you have the PAM library])
+  else
+    AC_MSG_WARN([Unable to locate PAM library])
+  fi
+])
+

configure.ac

@@ -67,6 +67,10 @@ dnl Check of sched_getaffinity exists and it's argument count
 dnl
 X_AC_AFFINITY
 
+dnl
+dnl Check for PAM module support
+X_AC_PAM
+
 dnl Checks for types.
 dnl
 X_AC_SLURM_BIGENDIAN

src/slurmd/slurmstepd/Makefile.am

@@ -12,7 +12,7 @@ slurmstepd_LDADD = 				   \
         $(top_builddir)/src/common/libcommon.la    \
 	$(top_builddir)/src/common/libdaemonize.la \
 	$(top_builddir)/src/common/libeio.la       \
-	$(SSL_LIBS) 
+	$(SSL_LIBS) $(PAM_LIBS) 
 
 
 slurmstepd_SOURCES = 	        	\