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LU-6215 llite: handle kernel symlink api changes in 4.2+
[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4
index 991c1e1..97f1a2d 100644 (file)
@@ -37,7 +37,7 @@ AC_SUBST(pkgexampledir)
 #
 AC_DEFUN([LC_TARGET_SUPPORTED], [
 case $target_os in
-       linux* | darwin*)
+       linux*)
 $1
                ;;
        *)
@@ -64,25 +64,6 @@ AC_DEFINE_UNQUOTED(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE,
 ]) # LC_CONFIG_OBD_BUFFER_SIZE
 
 #
-# LC_READLINK_SSIZE_T
-#
-AC_DEFUN([LC_READLINK_SSIZE_T], [
-AC_CACHE_CHECK([if readlink returns ssize_t],
-lb_cv_compile_readlink_ssize_t, [
-AC_TRY_COMPILE([
-       #include <unistd.h>
-], [
-       ssize_t readlink(const char *, char *, size_t);
-],
-       [lb_cv_compile_readlink_ssize_t="yes"],
-       [lb_cv_compile_readlink_ssize_t="no"])
-])
-AS_IF([test "x$lb_cv_compile_readlink_ssize_t" = xyes],
-       [AC_DEFINE(HAVE_POSIX_1003_READLINK, 1,
-               [readlink returns ssize_t])])
-]) # LC_READLINK_SSIZE_T
-
-#
 # LC_GLIBC_SUPPORT_FHANDLES
 #
 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
@@ -172,20 +153,6 @@ AS_IF([test "x$enable_checksum" != xno],
 ]) # LC_CONFIG_CHECKSUM
 
 #
-# LC_CONFIG_LIBLUSTRE_RECOVERY
-#
-AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY], [
-AC_MSG_CHECKING([whether to enable liblustre recovery support])
-AC_ARG_ENABLE([liblustre-recovery],
-       AC_HELP_STRING([--disable-liblustre-recovery],
-               [disable liblustre recovery support]),
-       [], [enable_liblustre_recovery="yes"])
-AC_MSG_RESULT([$enable_liblustre_recovery])
-AS_IF([test "x$enable_liblustre_recovery" != xno],
-       [AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, [Liblustre Can Recover])])
-]) # LC_CONFIG_LIBLUSTRE_RECOVERY
-
-#
 # LC_CONFIG_HEALTH_CHECK_WRITE
 #
 # Turn off the actual write to the disk
@@ -248,18 +215,6 @@ LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
 
 #
-# LC_CAPA_CRYPTO
-#
-AC_DEFUN([LC_CAPA_CRYPTO], [
-LB_CHECK_CONFIG_IM([CRYPTO], [],
-       [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])])
-LB_CHECK_CONFIG_IM([CRYPTO_HMAC], [],
-       [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])])
-LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
-       [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])])
-]) # LC_CAPA_CRYPTO
-
-#
 # LC_CONFIG_RMTCLIENT
 #
 dnl FIXME
@@ -322,6 +277,40 @@ Cannot enable gss keyring. See above for details.
 ]) # LC_CONFIG_GSS_KEYRING
 
 #
+# LC_HAVE_CRED_TGCRED
+#
+# rhel7 struct cred has no member tgcred
+#
+AC_DEFUN([LC_HAVE_CRED_TGCRED], [
+LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
+cred_tgcred, [
+       #include <linux/cred.h>
+],[
+       ((struct cred *)0)->tgcred = NULL;
+],[
+       AC_DEFINE(HAVE_CRED_TGCRED, 1,
+               [struct cred has member tgcred])
+])
+]) # LC_HAVE_CRED_TGCRED
+
+#
+# LC_KEY_TYPE_INSTANTIATE_2ARGS
+#
+# rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
+#
+AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
+LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
+key_type_instantiate_2args, [
+       #include <linux/key-type.h>
+],[
+       ((struct key_type *)0)->instantiate(0, NULL);
+],[
+       AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
+               [key_type->instantiate has two args])
+])
+]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
+
+#
 # LC_CONFIG_SUNRPC
 #
 AC_DEFUN([LC_CONFIG_SUNRPC], [
@@ -349,6 +338,8 @@ AC_MSG_RESULT([$enable_gss])
 
 AS_IF([test "x$enable_gss" != xno], [
        LC_CONFIG_GSS_KEYRING
+       LC_HAVE_CRED_TGCRED
+       LC_KEY_TYPE_INSTANTIATE_2ARGS
        sunrpc_required=$enable_gss
        LC_CONFIG_SUNRPC
        sunrpc_required="no"
@@ -367,33 +358,17 @@ AS_IF([test "x$enable_gss" != xno], [
        require_krb5="no"
 
        AS_IF([test -n "$KRBDIR"], [
-               AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context], [
-                       GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"
-                       gss_conf_test="success"
-               ], [
-                       AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context], [
-                               GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"
-                               gss_conf_test="success"
-                       ], [
-                               AS_IF([test "x$enable_gss" = xyes], [
-                                       AC_MSG_ERROR([
-
-libgssapi or libgssglue is not found, which is required by GSS.
-])
-                               ], [
-                                       AC_MSG_WARN([
-
-libgssapi or libgssglue is not found, which is required by GSS.
-])
-                               ])
-                       ])
-               ])
-               AC_SUBST(GSSAPI_LIBS)
+               gss_conf_test="success"
+       ], [
+               AC_MSG_WARN([not found!])
+               gss_conf_test="failure"
        ])
 
        AS_IF([test "x$gss_conf_test" = xsuccess], [
                AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
                enable_gss="yes"
+       ], [
+               enable_gss="no"
        ])
 ])
 ]) # LC_CONFIG_GSS
@@ -520,6 +495,25 @@ EXTRA_KCFLAGS=$tmp_flags
 ]) # LC_QUOTA64
 
 #
+# LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
+#
+# 2.6.34 adds __add_wait_queue_exclusive
+#
+AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
+LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
+__add_wait_queue_exclusive, [
+       #include <linux/wait.h>
+],[
+       wait_queue_head_t queue;
+       wait_queue_t      wait;
+       __add_wait_queue_exclusive(&queue, &wait);
+],[
+       AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
+                 [__add_wait_queue_exclusive exists])
+])
+]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
+
+#
 # LC_FS_STRUCT_RWLOCK
 #
 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
@@ -852,20 +846,19 @@ lock_manager_ops_lm_xxx, [
 #
 # LC_INODE_DIO_WAIT
 #
-# 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
-#     inode_dio_done instead.
+# 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
+#     instead.
 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
 #
 AC_DEFUN([LC_INODE_DIO_WAIT], [
-LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait/done],
+LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
 inode_dio_wait, [
        #include <linux/fs.h>
 ],[
        inode_dio_wait((struct inode *)0);
-       inode_dio_done((struct inode *)0);
 ],[
        AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
-               [inode->i_alloc_sem is killed and use inode_dio_wait/done])
+               [inode->i_alloc_sem is killed and use inode_dio_wait])
 ])
 ]) # LC_INODE_DIO_WAIT
 
@@ -900,6 +893,22 @@ LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
 ]) # LC_FILE_LLSEEK_SIZE
 
 #
+# LC_RADIX_EXCEPTION_ENTRY
+# 3.1 adds radix_tree_exception_entry.
+#
+AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
+LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
+radix_tree_exceptional_entry, [
+       #include <linux/radix-tree.h>
+],[
+       radix_tree_exceptional_entry(NULL);
+],[
+       AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
+               [radix_tree_exceptional_entry exist])
+])
+]) # LC_RADIX_EXCEPTION_ENTRY
+
+#
 # LC_HAVE_VOID_MAKE_REQUEST_FN
 #
 # 3.2 request_queue.make_request_fn defined as function returns with void
@@ -940,6 +949,33 @@ inode_i_nlink_protected, [
 ]) # LC_HAVE_PROTECT_I_NLINK
 
 #
+# 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
+#
+# 3.2 security_inode_init_security takes a callback to set xattrs
+#
+AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
+LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
+security_inode_init_security_callback, [
+       #include <linux/security.h>
+],[
+       security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
+],[
+       AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
+                 [security_inode_init_security takes a callback to set xattrs])
+],[
+       LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
+       security_inode_init_security_qstr, [
+               #include <linux/security.h>
+       ],[
+               security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
+       ],[
+               AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
+                         [security_inode_init_security takes a 'struct qstr' parameter])
+       ])
+])
+]) # LC_HAVE_SECURITY_IINITSEC
+
+#
 # LC_HAVE_MIGRATE_HEADER
 #
 # 3.3 introduces migrate_mode.h and migratepage has 4 args
@@ -1152,30 +1188,35 @@ generic_file_llseek_size_5args, [
 ]) # LC_FILE_LLSEEK_SIZE_5ARG
 
 #
-# LC_HAVE_DENTRY_D_ALIAS_HLIST
+# LC_LLITE_DATA_IS_LIST
 #
 # 3.6 switch i_dentry/d_alias from list to hlist
 #
-AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST], [
+# In the upstream kernels d_alias first changes
+# to a hlist and then in later version, 3.11, gets
+# moved to the union d_u. Due to some distros having
+# d_alias in the d_u union as a struct list, which
+# has never existed upstream stream, we can't test
+# if d_alias is a list or hlist directly. If ever
+# i_dentry and d_alias even up different combos then
+# the build will fail. In that case then we will need
+# to separate out the i_dentry and d_alias test below.
+#
+AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
 tmp_flags="$EXTRA_KCFLAGS"
 EXTRA_KCFLAGS="-Werror"
-LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'hlist'],
-i_dentry_d_alias_hlist, [
+LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
+i_dentry_d_alias_list, [
        #include <linux/fs.h>
-       #include <linux/list.h>
 ],[
        struct inode inode;
-       struct dentry dentry;
-       struct hlist_head head;
-       struct hlist_node node;
-       inode.i_dentry = head;
-       dentry.d_alias = node;
+       INIT_LIST_HEAD(&inode.i_dentry);
 ],[
-       AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
-               [have i_dentry/d_alias uses hlist])
+       AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
+               [both i_dentry/d_alias uses list])
 ])
 EXTRA_KCFLAGS="$tmp_flags"
-]) # LC_HAVE_DENTRY_D_ALIAS_HLIST
+]) # LC_DATA_FOR_LLITE_IS_LIST
 
 #
 # LC_DENTRY_OPEN_USE_PATH
@@ -1242,14 +1283,14 @@ posix_acl_to_xattr_user_namespace, [
 # 3.8 struct file has new member f_inode
 #
 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
-LB_CHECK_COMPILE([if 'struct file' has memeber 'f_inode'],
+LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
 file_f_inode, [
        #include <linux/fs.h>
 ],[
        ((struct file *)0)->f_inode = NULL;
 ],[
        AC_DEFINE(HAVE_FILE_F_INODE, 1,
-               [struct file has memeber f_inode])
+               [struct file has member f_inode])
 ])
 ]) # LC_HAVE_FILE_F_INODE
 
@@ -1280,9 +1321,10 @@ hlist_for_each_entry_3args, [
        #include <linux/list.h>
        #include <linux/fs.h>
 ],[
+       struct hlist_head *head = NULL;
        struct inode *inode;
-       struct dentry *dentry;
-       hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
+
+       hlist_for_each_entry(inode, head, i_hash) {
                continue;
        }
 ],[
@@ -1292,21 +1334,58 @@ hlist_for_each_entry_3args, [
 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
 
 #
-# LC_HAVE_ONLY_PROCFS_SEQ
+# LC_HAVE_BIO_END_SECTOR
+#
+# 3.9 introduces bio_end_sector macro
+# f73a1c7d117d07a96d89475066188a2b79e53c48
+#
+AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
+LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
+bio_end_sector, [
+       #include <linux/bio.h>
+],[
+       struct bio bio;
+
+       bio_end_sector(&bio);
+],[
+       AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
+                 [bio_end_sector is defined])
+])
+]) # LC_HAVE_BIO_END_SECTOR
+
+#
+# LC_HAVE_REMOVE_PROC_SUBTREE
 #
-# 3.10+ only supports procfs seq_files handling
+# 3.10 introduced remove_proc_subtree
 #
-AC_DEFUN([LC_HAVE_ONLY_PROCFS_SEQ], [
-LB_CHECK_COMPILE([if procfs only supports using 'seq_files'],
-only_procfs_seq_files, [
+AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
+LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
+remove_proc_subtree, [
        #include <linux/proc_fs.h>
 ],[
-       ((struct proc_dir_entry *)0)->write_proc(NULL, NULL, 0, NULL);
-], [], [
-       AC_DEFINE(HAVE_ONLY_PROCFS_SEQ, 1,
-               [only seq_files supported])
+       remove_proc_subtree(NULL, NULL);
+], [
+       AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
+                 [remove_proc_subtree is defined])
+])
+]) # LC_HAVE_REMOVE_PROC_SUBTREE
+
+#
+# LC_HAVE_PROC_REMOVE
+#
+# 3.10 introduced proc_remove
+#
+AC_DEFUN([LC_HAVE_PROC_REMOVE], [
+LB_CHECK_COMPILE([if 'proc_remove' is defined],
+proc_remove, [
+       #include <linux/proc_fs.h>
+],[
+       proc_remove(NULL);
+], [
+       AC_DEFINE(HAVE_PROC_REMOVE, 1,
+                 [proc_remove is defined])
 ])
-]) # LC_HAVE_ONLY_PROCFS_SEQ
+]) # LC_HAVE_PROC_REMOVE
 
 #
 # LC_BLKDEV_RELEASE_RETURN_INT
@@ -1417,6 +1496,61 @@ truncate_pagecache_old_size, [
 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
 
 #
+# LC_HAVE_DENTRY_D_U_D_ALIAS
+#
+# 3.11 kernel moved d_alias to the union d_u in struct dentry
+#
+# Some distros move d_alias to d_u but it is still a struct list
+#
+AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
+AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
+       LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
+       d_alias, [
+               #include <linux/list.h>
+               #include <linux/dcache.h>
+       ],[
+               struct dentry de;
+               INIT_LIST_HEAD(&de.d_u.d_alias);
+       ],[
+               AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
+                       [list dentry.d_u.d_alias exist])
+       ])
+],[
+       LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
+       d_alias, [
+               #include <linux/list.h>
+               #include <linux/dcache.h>
+       ],[
+               struct dentry de;
+               INIT_HLIST_NODE(&de.d_u.d_alias);
+       ],[
+               AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
+                       [hlist dentry.d_u.d_alias exist])
+       ])
+])
+]) # LC_HAVE_DENTRY_D_U_D_ALIAS
+
+#
+# LC_HAVE_DENTRY_D_CHILD
+#
+# 3.11 kernel d_child has been moved out of the union d_u
+# in struct dentry
+#
+AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
+LB_CHECK_COMPILE([if 'dentry.d_child' exist],
+d_child, [
+       #include <linux/list.h>
+       #include <linux/dcache.h>
+],[
+       struct dentry de;
+       INIT_LIST_HEAD(&de.d_child);
+],[
+       AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
+               [dentry.d_child exist])
+])
+]) # LC_HAVE_DENTRY_D_CHILD
+
+#
 # LC_KIOCB_KI_LEFT
 #
 # 3.12 ki_left removed from struct kiocb
@@ -1436,7 +1570,7 @@ kiocb_ki_left, [
 #
 # LC_VFS_RENAME_5ARGS
 #
-# 3.13 has vfs_renane with 5 args
+# 3.13 has vfs_rename with 5 args
 #
 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
@@ -1451,6 +1585,333 @@ vfs_rename_5args, [
 ]) # LC_VFS_RENAME_5ARGS
 
 #
+# LC_VFS_UNLINK_3ARGS
+#
+# 3.13 has vfs_unlink with 3 args
+#
+AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
+LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
+vfs_unlink_3args, [
+       #include <linux/fs.h>
+],[
+       vfs_unlink(NULL, NULL, NULL);
+], [
+       AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
+               [kernel has vfs_unlink with 3 args])
+])
+]) # LC_VFS_UNLINK_3ARGS
+
+#
+# LC_HAVE_BVEC_ITER
+#
+# 3.14 move some of its data in struct bio into the new
+# struct bvec_iter
+#
+AC_DEFUN([LC_HAVE_BVEC_ITER], [
+LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
+have_bvec_iter, [
+       #include <linux/bio.h>
+],[
+       struct bvec_iter iter;
+       iter.bi_bvec_done = 0;
+], [
+       AC_DEFINE(HAVE_BVEC_ITER, 1,
+               [kernel has struct bvec_iter])
+])
+]) # LC_HAVE_BVEC_ITER
+
+#
+# LC_HAVE_TRUNCATE_IPAGE_FINAL
+#
+# 3.14 bring truncate_inode_pages_final for evict_inode
+#
+AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
+LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
+truncate_ipages_final, [
+       #include <linux/mm.h>
+],[
+       truncate_inode_pages_final(NULL);
+], [
+       AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
+               [kernel has truncate_inode_pages_final])
+])
+]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
+
+#
+# LC_VFS_RENAME_6ARGS
+#
+# 3.15 has vfs_rename with 6 args
+#
+AC_DEFUN([LC_VFS_RENAME_6ARGS], [
+LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
+vfs_rename_6args, [
+       #include <linux/fs.h>
+],[
+       vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
+], [
+       AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
+               [kernel has vfs_rename with 6 args])
+])
+]) # LC_VFS_RENAME_6ARGS
+
+#
+# LC_DIRECTIO_USE_ITER
+#
+# 3.16 kernel changes direct IO to use iov_iter
+#
+AC_DEFUN([LC_DIRECTIO_USE_ITER], [
+LB_CHECK_COMPILE([if direct IO uses iov_iter],
+direct_io_iter, [
+       #include <linux/fs.h>
+],[
+       struct address_space_operations ops;
+       struct iov_iter *iter = NULL;
+       loff_t offset = 0;
+
+       ops.direct_IO(0, NULL, iter, offset);
+],[
+       AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
+               [direct IO uses iov_iter])
+])
+]) # LC_DIRECTIO_USE_ITER
+
+#
+# LC_HAVE_IOV_ITER_INIT_DIRECTION
+#
+#
+# 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
+#      changed iov_iter_init api to start accepting a tag
+#      that defines if its a read or write operation
+#
+AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
+iter_init, [
+       #include <linux/uio.h>
+       #include <linux/fs.h>
+],[
+       const struct iovec *iov = NULL;
+
+       iov_iter_init(NULL, READ, iov, 1, 0);
+],[
+       AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
+               [iov_iter_init handles directional tag])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
+
+#
+# LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
+#
+# 3.16 introduces [read|write]_iter to struct file_operations
+#
+AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
+LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
+file_function_iter, [
+       #include <linux/fs.h>
+],[
+       ((struct file_operations *)NULL)->read_iter(NULL, NULL);
+       ((struct file_operations *)NULL)->write_iter(NULL, NULL);
+],[
+       AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
+               [file_operations.[read|write]_iter functions exist])
+])
+]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
+
+#
+# LC_KEY_MATCH_DATA
+#
+# 3.17 replaces key_type::match with match_preparse
+#      and has new struct key_match_data
+#
+AC_DEFUN([LC_KEY_MATCH_DATA], [
+LB_CHECK_COMPILE([if struct key_match field exist],
+key_match, [
+       #include <linux/key-type.h>
+],[
+       struct key_match_data data;
+],[
+       AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
+               [struct key_match_data exist])
+])
+]) # LC_KEY_MATCH_DATA
+
+#
+# LC_NFS_FILLDIR_USE_CTX
+#
+# 3.18 kernel moved from void cookie to struct dir_context
+#
+AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
+filldir_ctx, [
+       #include <linux/fs.h>
+],[
+       int filldir(struct dir_context *ctx, const char* name,
+                   int i, loff_t off, u64 tmp, unsigned temp)
+       {
+               return 0;
+       }
+
+       struct dir_context ctx = {
+               .actor = filldir,
+       };
+
+       ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
+],[
+       AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
+               [filldir_t needs struct dir_context as argument])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LC_NFS_FILLDIR_USE_CTX
+
+#
+# LC_KIOCB_HAS_NBYTES
+#
+# 3.19 kernel removed ki_nbytes from struct kiocb
+#
+AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
+LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
+ki_nbytes, [
+       #include <linux/fs.h>
+],[
+       struct kiocb iocb;
+
+       iocb.ki_nbytes = 0;
+],[
+       AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
+])
+]) # LC_KIOCB_HAS_NBYTES
+
+#
+# LC_BACKING_DEV_INFO_REMOVAL
+#
+# 3.20 kernel removed backing_dev_info from address_space
+#
+AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
+LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
+backing_dev_info, [
+       #include <linux/fs.h>
+],[
+       struct address_space mapping;
+
+       mapping.backing_dev_info = NULL;
+],[
+       AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
+])
+]) # LC_BACKING_DEV_INFO_REMOVAL
+
+#
+# LC_HAVE_BDI_CAP_MAP_COPY
+#
+# 3.20  removed mmap handling for backing devices since
+#      it breaks on non-MMU systems. See kernel commit
+#      b4caecd48005fbed3949dde6c1cb233142fd69e9
+#
+AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
+LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
+bdi_cap_map_copy, [
+       #include <linux/backing-dev.h>
+],[
+       struct backing_dev_info info;
+
+       info.capabilities = BDI_CAP_MAP_COPY;
+],[
+       AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
+               [BDI_CAP_MAP_COPY exist])
+])
+]) # LC_HAVE_BDI_CAP_MAP_COPY
+
+#
+# LC_CANCEL_DIRTY_PAGE
+#
+# 4.0.0 kernel removed cancel_dirty_page
+#
+AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
+LB_CHECK_COMPILE([if cancel_dirty_page still exist],
+cancel_dirty_page, [
+       #include <linux/mm.h>
+],[
+       cancel_dirty_page(NULL, PAGE_SIZE);
+],[
+       AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
+               [cancel_dirty_page is still available])
+])
+]) # LC_CANCEL_DIRTY_PAGE
+
+#
+# LC_IOV_ITER_RW
+#
+# 4.1 kernel has iov_iter_rw
+#
+AC_DEFUN([LC_IOV_ITER_RW], [
+LB_CHECK_COMPILE([if iov_iter_rw exist],
+iov_iter_rw, [
+       #include <linux/fs.h>
+       #include <linux/uio.h>
+],[
+       struct iov_iter *iter = NULL;
+
+       iov_iter_rw(iter);
+],[
+       AC_DEFINE(HAVE_IOV_ITER_RW, 1,
+               [iov_iter_rw exist])
+])
+]) # LC_IOV_ITER_RW
+
+#
+# LC_HAVE_SYNC_READ_WRITE
+#
+# 4.1 new_sync_[read|write] no longer exported
+#
+AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
+LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
+       [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
+                       [new_sync_[read|write] is exported by the kernel])])
+]) # LC_HAVE_SYNC_READ_WRITE
+
+#
+# LC_NEW_CANCEL_DIRTY_PAGE
+#
+# 4.2 kernel has new cancel_dirty_page
+#
+AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
+LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
+new_cancel_dirty_page, [
+       #include <linux/mm.h>
+],[
+       cancel_dirty_page(NULL);
+],[
+       AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
+               [cancel_dirty_page with one arguement is available])
+])
+]) # LC_NEW_CANCEL_DIRTY_PAGE
+
+#
+# LC_SYMLINK_OPS_USE_NAMEIDATA
+#
+# For the 4.2+ kernels the file system internal symlink api no
+# longer uses struct nameidata as a argument
+#
+AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
+LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
+symlink_use_nameidata, [
+       #include <linux/namei.h>
+       #include <linux/fs.h>
+],[
+       struct nameidata *nd = NULL;
+
+       ((struct inode_operations *)0)->follow_link(NULL, nd);
+       ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
+],[
+       AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
+               [symlink inode operations need struct nameidata argument])
+])
+]) # LC_SYMLINK_OPS_USE_NAMEIDATA
+
+#
 # LC_PROG_LINUX
 #
 # Lustre linux kernel checks
@@ -1461,13 +1922,11 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        LC_CONFIG_PINGER
        LC_CONFIG_CHECKSUM
-       LC_CONFIG_LIBLUSTRE_RECOVERY
        LC_CONFIG_HEALTH_CHECK_WRITE
        LC_CONFIG_LRU_RESIZE
        LC_LLITE_LLOOP_MODULE
 
        LC_GLIBC_SUPPORT_FHANDLES
-       LC_CAPA_CRYPTO
        LC_CONFIG_RMTCLIENT
        LC_CONFIG_GSS
 
@@ -1477,6 +1936,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 2.6.34
        LC_HAVE_DQUOT_FS_DISK_QUOTA
        LC_HAVE_DQUOT_SUSPEND
+       LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
 
        # 2.6.35, 3.0.0
        LC_FILE_FSYNC
@@ -1504,6 +1964,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_HAVE_FSTYPE_MOUNT
        LC_IOP_TRUNCATE
        LC_HAVE_INODE_OWNER_OR_CAPABLE
+       LC_HAVE_SECURITY_IINITSEC
 
        # 3.0
        LC_DIRTY_INODE_WITH_FLAG
@@ -1514,6 +1975,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_IOP_GET_ACL
        LC_FILE_LLSEEK_SIZE
        LC_INODE_PERMISION_2ARGS
+       LC_RADIX_EXCEPTION_ENTRY
 
        # 3.2
        LC_HAVE_VOID_MAKE_REQUEST_FN
@@ -1536,7 +1998,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_FILE_LLSEEK_SIZE_5ARG
 
        # 3.6
-       LC_HAVE_DENTRY_D_ALIAS_HLIST
+       LC_DATA_FOR_LLITE_IS_LIST
        LC_DENTRY_OPEN_USE_PATH
        LC_HAVE_IOP_ATOMIC_OPEN
 
@@ -1549,16 +2011,20 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        # 3.9
        LC_HAVE_HLIST_FOR_EACH_3ARG
+       LC_HAVE_BIO_END_SECTOR
 
        # 3.10
-       LC_HAVE_ONLY_PROCFS_SEQ
        LC_BLKDEV_RELEASE_RETURN_INT
+       LC_HAVE_REMOVE_PROC_SUBTREE
+       LC_HAVE_PROC_REMOVE
 
        # 3.11
        LC_INVALIDATE_RANGE
        LC_HAVE_DIR_CONTEXT
        LC_D_COMPARE_5ARGS
        LC_HAVE_DCOUNT
+       LC_HAVE_DENTRY_D_U_D_ALIAS
+       LC_HAVE_DENTRY_D_CHILD
 
        # 3.12
        LC_OLDSIZE_TRUNCATE_PAGECACHE
@@ -1566,6 +2032,43 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        # 3.13
        LC_VFS_RENAME_5ARGS
+       LC_VFS_UNLINK_3ARGS
+
+       # 3.14
+       LC_HAVE_BVEC_ITER
+       LC_HAVE_TRUNCATE_IPAGES_FINAL
+
+       # 3.15
+       LC_VFS_RENAME_6ARGS
+
+       # 3.16
+       LC_DIRECTIO_USE_ITER
+       LC_HAVE_IOV_ITER_INIT_DIRECTION
+       LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
+
+       # 3.17
+       LC_KEY_MATCH_DATA
+
+       # 3.18
+       LC_NFS_FILLDIR_USE_CTX
+
+       # 3.19
+       LC_KIOCB_HAS_NBYTES
+
+       # 3.20
+       LC_BACKING_DEV_INFO_REMOVAL
+       LC_HAVE_BDI_CAP_MAP_COPY
+
+       # 4.0.0
+       LC_CANCEL_DIRTY_PAGE
+
+       # 4.1.0
+       LC_IOV_ITER_RW
+       LC_HAVE_SYNC_READ_WRITE
+
+       # 4.2
+       LC_NEW_CANCEL_DIRTY_PAGE
+       LC_SYMLINK_OPS_USE_NAMEIDATA
 
        #
        AS_IF([test "x$enable_server" != xno], [
@@ -1591,91 +2094,47 @@ AC_MSG_RESULT([$enable_client])
 ]) # LC_CONFIG_CLIENT
 
 #
-# LC_CONFIG_LIBLUSTRE
-#
-# whether to build liblustre
-#
-AC_DEFUN([LC_CONFIG_LIBLUSTRE], [
-AC_MSG_CHECKING([whether to build Lustre library])
-AC_ARG_ENABLE([liblustre],
-       AC_HELP_STRING([--enable-liblustre],
-               [enable building of Lustre library]),
-       [], [])
-AC_MSG_RESULT([$enable_liblustre])
-
-# only build sysio if liblustre is built
-with_sysio="$enable_liblustre"
-
-AC_MSG_CHECKING([whether to build liblustre tests])
-AC_ARG_ENABLE([liblustre-tests],
-       AC_HELP_STRING([--enable-liblustre-tests],
-               [enable liblustre tests, if --disable-tests is used]),
-       [], [enable_liblustre_tests=$enable_tests])
-AS_IF([test "x$enable_liblustre" != xyes], [enable_liblustre_tests="no"])
-AC_MSG_RESULT([$enable_liblustre_tests])
-
-AC_MSG_CHECKING([whether to enable liblustre acl])
-AC_ARG_ENABLE([liblustre-acl],
-       AC_HELP_STRING([--disable-liblustre-acl],
-               [disable ACL support for liblustre]),
-       [], [enable_liblustre_acl="yes"])
-AC_MSG_RESULT([$enable_liblustre_acl])
-
-AS_IF([test "x$enable_liblustre_acl" = xyes],
-       [AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1,
-               [Liblustre Support ACL-enabled MDS])])
-
-#
-# --enable-mpitest
-#
-AC_ARG_ENABLE(mpitests,
-       AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
-               [include mpi tests]),
-       [
-       enable_mpitests="yes"
-       case $enableval in
-       yes)
-               MPICC_WRAPPER=mpicc
-               ;;
-       no)
-               enable_mpitests=no
-               ;;
-       *)
-               MPICC_WRAPPER=$enableval
-               ;;
-       esac
+# --enable-mpitests
+#
+AC_DEFUN([LB_CONFIG_MPITESTS], [
+AC_ARG_ENABLE([mpitests],
+       AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
+                      [include mpi tests]), [
+               enable_mpitests="yes"
+               case $enableval in
+               yes)
+                       MPICC_WRAPPER="mpicc"
+                       ;;
+               no)
+                       enable_mpitests="no"
+                       ;;
+               *)
+                       MPICC_WRAPPER=$enableval
+                       ;;
+               esac
        ], [
-       MPICC_WRAPPER=mpicc
-       enable_mpitests=yes
+               enable_mpitests="yes"
+               MPICC_WRAPPER="mpicc"
        ])
 
-AS_IF([test "x$enable_mpitests" != xno], [
-       oldcc=$CC
-       CC=$MPICC_WRAPPER
-       AC_MSG_CHECKING([whether mpitests can be built])
-       AC_LINK_IFELSE([
-               AC_LANG_PROGRAM([[
+       if test "x$enable_mpitests" != "xno"; then
+               oldcc=$CC
+               CC=$MPICC_WRAPPER
+               AC_CACHE_CHECK([whether mpitests can be built],
+               lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
                        #include <mpi.h>
-               ]],[[
-                       int flag;
-                       MPI_Initialized(&flag);
-               ]])
-       ], [
-               AC_MSG_RESULT([yes])
-       ], [
-               AC_MSG_RESULT([no])
-               enable_mpitests=no
-       ])
-       CC=$oldcc
-])
-AC_SUBST(MPICC_WRAPPER)
-
-AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
-ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
-
-LC_CONFIG_PINGER
-LC_CONFIG_LIBLUSTRE_RECOVERY
-])
+                       int main(void) {
+                               int flag;
+                               MPI_Initialized(&flag);
+                               return 0;
+                       }
+               ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
+               ])
+               enable_mpitests=$lb_cv_mpi_tests
+               CC=$oldcc
+       fi
+       AC_SUBST(MPICC_WRAPPER)
+]) # LB_CONFIG_MPITESTS
 
 #
 # LC_CONFIG_QUOTA
@@ -1709,22 +2168,6 @@ AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
 ]) # LC_QUOTA
 
 #
-# LC_CONFIG_SPLIT
-#
-# whether to enable split support
-#
-AC_DEFUN([LC_CONFIG_SPLIT], [
-AC_MSG_CHECKING([whether to enable split support])
-AC_ARG_ENABLE([split],
-       AC_HELP_STRING([--enable-split],
-               [enable split support]),
-       [], [enable_split='no'])
-AC_MSG_RESULT([$enable_split])
-AS_IF([test "x$enable_split" != xno],
-    [AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])])
-]) # LC_CONFIG_SPLIT
-
-#
 # LC_CONFIG_NODEMAP_PROC_DEBUG
 #
 # enable nodemap proc file debugging
@@ -1814,66 +2257,35 @@ AC_MSG_NOTICE([Lustre core checks
 LC_CONFIG_OBD_BUFFER_SIZE
 
 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
-       [CFLAGS="$CFLAGS -Werror"])
+       [CFLAGS="$CFLAGS -Wall -Werror"])
 
 # maximum MDS thread count
 LC_MDS_MAX_THREADS
 
-# include/liblustre.h
-AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
-
-# liblustre/llite_lib.h
-AC_CHECK_HEADERS([xtio.h file.h])
-
-# liblustre/dir.c
-AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
-
-# liblustre/lutil.c
-AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
-AC_CHECK_FUNCS([inet_ntoa])
+# lustre/utils/gss/gss_util.c
+# lustre/utils/gss/gssd_proc.c
+# lustre/utils/gss/krb5_util.c
+# lustre/utils/llog_reader.c
+# lustre/utils/create_iam.c
+# lustre/utils/libiam.c
+AC_CHECK_HEADERS([netdb.h endian.h])
+AC_CHECK_FUNCS([gethostbyname])
 
-# libsysio/src/readlink.c
-LC_READLINK_SSIZE_T
+# lustre/utils/llverdev.c
+AC_CHECK_HEADERS([blkid/blkid.h])
 
-# libcfs prng.c - depends on linux/types.h from liblustre/dir.c
-AC_CHECK_HEADERS([linux/random.h], [], [],
-                [#ifdef HAVE_LINUX_TYPES_H
-                 #include <linux/types.h>
-                 #endif
-                ])
-
-# utils/llverfs.c
+# lustre/utils/llverfs.c
 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
 
-# check for -lz support
-ZLIB=""
-AC_CHECK_LIB([z], [adler32],
-       [AC_CHECK_HEADERS([zlib.h], [
-               ZLIB="-lz"
-               AC_DEFINE([HAVE_ADLER], 1,
-                       [support alder32 checksum type])
-       ], [
-               AC_MSG_WARN([
-
-No zlib-devel package found, unable to use adler32 checksum
-])
-])], [
-       AC_MSG_WARN([
-
-No zlib package found, unable to use adler32 checksum
-])
-])
-AC_SUBST(ZLIB)
-
 SELINUX=""
 AC_CHECK_LIB([selinux], [is_selinux_enabled],
-       [AC_CHECK_HEADERS([selinux.h],
+       [AC_CHECK_HEADERS([selinux/selinux.h],
                        [SELINUX="-lselinux"
                        AC_DEFINE([HAVE_SELINUX], 1,
                                [support for selinux ])],
                        [AC_MSG_WARN([
 
-No selinux-devel package found, unable to build selinux enabled tools
+No libselinux-devel package found, unable to build selinux enabled tools
 ])
 ])],
        [AC_MSG_WARN([
@@ -1940,8 +2352,6 @@ AS_IF([test "x$enable_pgstat_track" = xyes],
 # AM_CONDITIONALS for lustre
 #
 AC_DEFUN([LC_CONDITIONALS], [
-AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
-AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
@@ -1970,14 +2380,16 @@ lustre/contrib/Makefile
 lustre/doc/Makefile
 lustre/include/Makefile
 lustre/include/lustre_ver.h
-lustre/include/linux/Makefile
-lustre/include/darwin/Makefile
 lustre/include/lustre/Makefile
+lustre/kernel_patches/targets/3.10-rhel7.target
+lustre/kernel_patches/targets/2.6-rhel6.7.target
+lustre/kernel_patches/targets/2.6-rhel6.6.target
 lustre/kernel_patches/targets/2.6-rhel6.target
 lustre/kernel_patches/targets/2.6-rhel5.target
 lustre/kernel_patches/targets/2.6-sles11.target
 lustre/kernel_patches/targets/3.0-sles11.target
 lustre/kernel_patches/targets/3.0-sles11sp3.target
+lustre/kernel_patches/targets/3.12-sles12.target
 lustre/kernel_patches/targets/2.6-fc11.target
 lustre/kernel_patches/targets/2.6-fc12.target
 lustre/kernel_patches/targets/2.6-fc15.target
@@ -1985,12 +2397,8 @@ lustre/kernel_patches/targets/3.x-fc18.target
 lustre/ldlm/Makefile
 lustre/fid/Makefile
 lustre/fid/autoMakefile
-lustre/liblustre/Makefile
-lustre/liblustre/tests/Makefile
-lustre/liblustre/tests/mpi/Makefile
 lustre/llite/Makefile
 lustre/llite/autoMakefile
-lustre/lclient/Makefile
 lustre/lov/Makefile
 lustre/lov/autoMakefile
 lustre/mdc/Makefile
@@ -2001,8 +2409,6 @@ lustre/lfsck/Makefile
 lustre/lfsck/autoMakefile
 lustre/mdt/Makefile
 lustre/mdt/autoMakefile
-lustre/nodemap/Makefile
-lustre/nodemap/autoMakefile
 lustre/mdd/Makefile
 lustre/mdd/autoMakefile
 lustre/fld/Makefile
@@ -2042,6 +2448,5 @@ lustre/osp/Makefile
 lustre/osp/autoMakefile
 lustre/lod/Makefile
 lustre/lod/autoMakefile
-lustre/obdclass/darwin/Makefile
 ])
 ]) # LC_CONFIG_FILES