Revert "Fix: bump minimal urcu dependency to 0.11"

[deliverable/lttng-tools.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 38356da9304de0d392cc4e92976de7454d9e52dd..531b6c0ac563ecdaa15871272630dc79c492c4d5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -485,7 +485,7 @@ PKG_CHECK_MODULES([libxml2], [libxml-2.0 >= 2.7.6])
 AC_CHECK_FUNC([clock_gettime], [AC_DEFINE_UNQUOTED([LTTNG_HAVE_CLOCK_GETTIME], 1, [Has clock_gettime() support.])])
 
 # URCU library version needed or newer
-m4_define([WRONG_LIBURCU_MSG], [Userspace RCU (liburcu) >= 0.11.0 is needed])
+m4_define([WRONG_LIBURCU_MSG], [Userspace RCU (liburcu) >= 0.9.0 is needed])
 
 # Check liburcu needed function calls
 AC_CHECK_DECL([cds_list_add], [],
@@ -510,9 +510,9 @@ AC_CHECK_DECL([cmm_smp_mb__before_uatomic_or], [],
         [AC_MSG_ERROR([WRONG_LIBURCU_MSG])], [[#include <urcu.h>]]
 )
 
-#Function added in urcu 0.11.0
-AC_CHECK_DECL([urcu_memb_barrier], [],
-        [AC_MSG_ERROR([WRONG_LIBURCU_MSG])], [[#include <urcu/urcu-memb.h>]]
+#Function added in urcu 0.9.0
+AC_CHECK_DECL([urcu_ref_get_unless_zero], [],
+        [AC_MSG_ERROR([WRONG_LIBURCU_MSG])], [[#include <urcu/ref.h>]]
 )
 
 # Check for libkmod, it will be auto-neabled if found but won't fail if it's not,