+#
+# LB_PATH_LDISKFS
+#
+# Handle internal/external ldiskfs
+#
+AC_DEFUN([LB_PATH_LDISKFS],
+[AC_ARG_WITH([ldiskfs],
+ AC_HELP_STRING([--with-ldiskfs=path],
+ [set path to ldiskfs source (default is included ldiskfs)]),
+ [],[
+ if test x$linux25$enable_server = xyesyes ; then
+ with_ldiskfs=yes
+ else
+ with_ldiskfs=no
+ fi
+ ])
+AC_MSG_CHECKING([location of ldiskfs])
+case x$with_ldiskfs in
+ xyes)
+ AC_MSG_RESULT([internal])
+ LB_CHECK_FILE([$srcdir/ldiskfs/lustre-ldiskfs.spec.in],[],[
+ AC_MSG_ERROR([A complete internal ldiskfs was not found.])
+ ])
+ LDISKFS_SUBDIR="ldiskfs"
+ LDISKFS_DIR="$PWD/ldiskfs"
+ ;;
+ xno)
+ AC_MSG_RESULT([disabled])
+ ;;
+ *)
+ AC_MSG_RESULT([$with_ldiskfs])
+ LB_CHECK_FILE([$with_ldiskfs/ldiskfs/linux/ldiskfs_fs.h],[],[
+ AC_MSG_ERROR([A complete (built) external ldiskfs was not found.])
+ ])
+ LDISKFS_DIR=$with_ldiskfs
+ ;;
+esac
+AC_SUBST(LDISKFS_DIR)
+AC_SUBST(LDISKFS_SUBDIR)
+AM_CONDITIONAL(LDISKFS_ENABLED, test x$with_ldiskfs != xno)
+
+# We have to configure even if we don't build here for make dist to work
+AC_CONFIG_SUBDIRS(ldiskfs)
+])
+
+# Define no libcfs by default.
+AC_DEFUN([LB_LIBCFS_DIR],
+[
+case x$libcfs_is_module in
+ xyes)
+ LIBCFS_INCLUDE_DIR="libcfs/include"
+ LIBCFS_SUBDIR="libcfs"
+ ;;
+ x*)
+ LIBCFS_INCLUDE_DIR="lnet/include"
+ LIBCFS_SUBDIR=""
+ ;;
+esac
+AC_SUBST(LIBCFS_SUBDIR)
+AC_SUBST(LIBCFS_INCLUDE_DIR)
+])
+
+#
+# LB_DEFINE_LDISKFS_OPTIONS
+#
+# Enable config options related to ldiskfs. These are used both by ldiskfs
+# and lvfs (which includes ldiskfs headers.)
+#
+AC_DEFUN([LB_DEFINE_LDISKFS_OPTIONS],
+[
+ AC_DEFINE(CONFIG_LDISKFS_FS_MODULE, 1, [build ldiskfs as a module])
+ AC_DEFINE(CONFIG_LDISKFS_FS_XATTR, 1, [enable extended attributes for ldiskfs])
+ AC_DEFINE(CONFIG_LDISKFS_FS_POSIX_ACL, 1, [enable posix acls for ldiskfs])
+ AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [enable fs security for ldiskfs])
+])
+
+#
+# LB_CONFIG_CRAY_XT3
+#
+# Enable Cray XT3 features
+#
+AC_DEFUN([LB_CONFIG_CRAY_XT3],
+[AC_MSG_CHECKING([whether to build Cray XT3 features])
+AC_ARG_ENABLE([cray_xt3],
+ AC_HELP_STRING([--enable-cray-xt3],
+ [enable building of Cray XT3 features]),
+ [enable_cray_xt3='yes'],[enable_cray_xt3='no'])
+AC_MSG_RESULT([$enable_cray_xt3])
+if test x$enable_cray_xt3 != xno; then
+ AC_DEFINE(CRAY_XT3, 1, Enable Cray XT3 Features)