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openmpi/ompi/mca/btl/sm/configure.m4
Ralph Castain 40a2bfa238 WARNING: Work on the temp branch being merged here encountered problems with bugs in subversion. Considerable effort has gone into validating the branch. However, not all conditions can be checked, so users are cautioned that it may be advisable to not update from the trunk for a few days to allow MTT to identify platform-specific issues.
This merges the branch containing the revamped build system based around converting autogen from a bash script to a Perl program. Jeff has provided emails explaining the features contained in the change.

Please note that configure requirements on components HAVE CHANGED. For example. a configure.params file is no longer required in each component directory. See Jeff's emails for an explanation.

This commit was SVN r23764.
2010-09-17 23:04:06 +00:00

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# -*- shell-script -*-
#
# Copyright (c) 2009 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2009-2010 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])])
$3])
OMPI_VAR_SCOPE_POP
])dnl
# MCA_btl_sm_CONFIG([action-if-can-compile],
# [action-if-cant-compile])
# ------------------------------------------------
AC_DEFUN([MCA_ompi_btl_sm_CONFIG],[
AC_CONFIG_FILES([ompi/mca/btl/sm/Makefile])
OMPI_VAR_SCOPE_PUSH([btl_sm_knem_happy])
OMPI_CHECK_KNEM([btl_sm],
[btl_sm_knem_happy=1],
[btl_sm_knem_happy=0])
AC_DEFINE_UNQUOTED([OMPI_BTL_SM_HAVE_KNEM],
[$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