Branch HEAD

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 1fd2674..7a628c0 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -598,6 +598,21 @@ AC_DEFUN([LC_EXPORT___IGET],
 ])
 ])
 
+#
+# LC_EXPORT_NR_FREE_BUFFER_PAGES
+# starting from 2.6.23 linux kernel exports nr_free_buffer_pages()
+#
+AC_DEFUN([LC_EXPORT_NR_FREE_BUFFER_PAGES],
+[LB_CHECK_SYMBOL_EXPORT([nr_free_buffer_pages],
+[mm/page_alloc.c],[
+        AC_DEFINE(HAVE_EXPORT_NR_FREE_BUFFER_PAGES, 1, [kernel exports nr_free_buffer_pages])
+],[
+       if test x$enable_server = xyes ; then
+               AC_MSG_ERROR([lustre server needs this symbol to be exported.])
+       fi
+])
+])
+
 
 AC_DEFUN([LC_LUSTRE_VERSION_H],
 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
@@ -725,7 +740,9 @@ AC_DEFUN([LC_CONFIG_GSS],
 
        AC_CHECK_LIB([gssapi], [gss_init_sec_context],
                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
-                     [AC_MSG_ERROR([libgssapi is not found, which is required by GSS.])],)
+                     [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
+                                   [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
+                                   [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 
        AC_SUBST(GSSAPI_LIBS)
 
@@ -1412,6 +1429,23 @@ int main(void)
 CFLAGS="$tmp_flags"
 ])
 
+#
+# check for crypto API 
+#
+AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
+[AC_MSG_CHECKING([if kernel has block cipher support])
+LB_LINUX_TRY_COMPILE([
+        #include <linux/crypto.h>
+],[
+        int v = CRYPTO_ALG_TYPE_BLKCIPHER;
+],[
+        AC_MSG_RESULT([yes])
+        AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
+],[
+        AC_MSG_RESULT([no])
+])
+])
+
 
 #
 # LC_PROG_LINUX
@@ -1518,10 +1552,12 @@ AC_DEFUN([LC_PROG_LINUX],
                  
         # 2.6.22
          LC_INVALIDATE_BDEV_2ARG
+         LC_ASYNC_BLOCK_CIPHER
          # 2.6.23
          LC_UNREGISTER_BLKDEV_RETURN_INT
          LC_KERNEL_SPLICE_READ
          LC_HAVE_EXPORTFS_H
+         LC_EXPORT_NR_FREE_BUFFER_PAGES
 ])
 
 #