Twice the code for half the price! :-)

Somehow, there's an entire 2nd (identical) copy of the sm btl
configure.m4 in here -- this commit removes the duplicate copy,
leaving only 1 copy of each relevant m4 macro.

Thanks to Ralph for spotting it!

This commit was SVN r23675.

ompi/mca/btl/sm/configure.m4

@@ -80,87 +80,3 @@ AC_DEFUN([MCA_btl_sm_CONFIG],[
     AC_SUBST([btl_sm_CPPFLAGS])
     OMPI_VAR_SCOPE_POP
 ])dnl
-
-# -*- shell-script -*-
-#
-# Copyright (c) 2009      The University of Tennessee and The University
-#                         of Tennessee Research Foundation.  All rights
-#                         reserved.
-# Copyright (c) 2009      Cisco Systems, Inc.  All rights reserved.
-# $COPYRIGHT$
-#
-# Additional copyrights may follow
-#
-# $HEADER$
-#
-
-# OMPI_CHECK_KNEM(prefix, [action-if-found], [action-if-not-found])
-# --------------------------------------------------------
-# check if knem support can be found.  sets prefix_{CPPFLAGS,
-# LDFLAGS, LIBS} as needed and runs action-if-found if there is
-# support, otherwise executes action-if-not-found
-AC_DEFUN([OMPI_CHECK_KNEM],[
-    OMPI_VAR_SCOPE_PUSH([ompi_check_knem_happy ompi_check_knem_$1_save_CPPFLAGS ompi_check_knem_dir])
-    AC_ARG_WITH([knem],
-        [AC_HELP_STRING([--with-knem(=DIR)],
-             [Build knem Linux kernel module support, searching for headers in DIR])])
-
-    OMPI_CHECK_WITHDIR([knem], [$with_knem], [include/knem_io.h])
-    ompi_check_knem_$1_save_CPPFLAGS="$CPPFLAGS"
-
-    AS_IF([test "$with_knem" != "no"],
-          [AS_IF([test ! -z "$with_knem" -a "$with_knem" != "yes"],
-                 [ompi_check_knem_dir="$with_knem"])
-
-           _OMPI_CHECK_PACKAGE_HEADER([$1],
-                              [knem_io.h],
-                              [$ompi_check_knem_dir],
-                              [ompi_check_knem_happy="yes"],
-                              [ompi_check_knem_happy="no"])],
-          [ompi_check_knem_happy="no"])
-
-    CPPFLAGS="$CPPFLAGS $$1_CPPFLAGS"
-
-    # need at least version 0x0000000b
-    AS_IF([test "$ompi_check_knem_happy" = "yes"],
-          [AC_CACHE_CHECK([for knem ABI version 0xb or later],
-                          [ompi_cv_knem_version_ok],
-                          [AC_PREPROC_IFELSE(
-                            [AC_LANG_PROGRAM([
-#include <knem_io.h>
-                             ],[
-#if KNEM_ABI_VERSION < 0xc
-#error "Version less than 0xc"
-#endif
-                             ])],
-                            [ompi_cv_knem_version_ok=yes],
-                            [ompi_cv_knem_version_ok=no])])])
-
-    CPPFLAGS="$ompi_check_knem_$1_save_CPPFLAGS"
-
-    AS_IF([test "$ompi_check_knem_happy" = "yes" -a "$ompi_cv_knem_version_ok" = "yes"],
-          [$2],
-          [AS_IF([test ! -z "$with_knem" -a "$with_knem" != "no"],
-                 [AC_MSG_ERROR([KNEM support requested but not found.  Aborting])])
-           $3])
-    OMPI_VAR_SCOPE_POP
-])dnl
-
-# MCA_btl_sm_CONFIG([action-if-can-compile],
-#                   [action-if-cant-compile])
-# ------------------------------------------------
-AC_DEFUN([MCA_btl_sm_CONFIG],[
-    OMPI_VAR_SCOPE_PUSH([btl_sm_knem_happy])
-    OMPI_CHECK_KNEM([btl_sm],
-        [btl_sm_knem_happy=1],
-        [btl_sm_knem_happy=0])
-
-    AC_DEFINE_UNQUOTED([OMPI_BTL_SM_HAVE_KNEM],
-        [$btl_sm_knem_happy],
-        [If knem support can be enabled])
-    [$1]
-    # substitute in the things needed to build KNEM
-    AC_SUBST([btl_sm_CPPFLAGS])
-    OMPI_VAR_SCOPE_POP
-])dnl
-