improve checks for exported symbols. This allow run check without sources, but with

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

diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 94d7475..4e88907 100644 (file)
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -1031,35 +1031,22 @@ LB_LINUX_TRY_COMPILE([
 # we export show_task(), but not all kernels have it (yet)
 #
 AC_DEFUN([LN_FUNC_SHOW_TASK],
-[AC_MSG_CHECKING([if kernel exports show_task])
-have_show_task=0
-for file in ksyms sched ; do
-       if grep -q "EXPORT_SYMBOL(show_task)" \
-                "$LINUX/kernel/$file.c" 2>/dev/null ; then
-               have_show_task=1
-               break
-       fi
-done
-if test x$have_show_task = x1 ; then
-       AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
-       AC_MSG_RESULT([yes])
-else
-       AC_MSG_RESULT([no])
-fi
+[LB_CHECK_SYMBOL_EXPORT([show_task],
+[kernel/ksyms.c kernel/sched.c],[
+AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
+],[
+])
 ])
 
 # LN_TASKLIST_LOCK
 # 2.6.18 remove tasklist_lock export
 AC_DEFUN([LN_TASKLIST_LOCK],
-[AC_MSG_CHECKING([kernel export tasklist_lock])
-        if grep -q "EXPORT_SYMBOL(tasklist_lock)" \
-                 "$LINUX/kernel/fork.c" 2>/dev/null ; then
-                AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
-                          [tasklist_lock exported])
-                AC_MSG_RESULT([yes])
-        else
-                AC_MSG_RESULT([no])
-        fi
+[LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
+[kernel/fork.c],[
+AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
+         [tasklist_lock exported])
+],[
+])
 ])
 
 # 2.6.19 API changes