Fix: race between statedump and library destructor

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 68f41315c9bee4ed00aa60c4f37a89a73f9c0779..1c89512c626cbc8b01df1daf18c498ce1c34d386 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,10 +1,10 @@
 dnl Version infos
 m4_define([V_MAJOR], [2])
-m4_define([V_MINOR], [10])
+m4_define([V_MINOR], [11])
 m4_define([V_PATCH], [0])
 m4_define([V_EXTRA], [rc1])
-m4_define([V_NAME], [[KeKriek]])
-m4_define([V_DESC], [[From Brasserie Dunham, a sour mashed golden wheat ale fermented with local sour cherries from Tougas orchards. Fresh sweet cherry notes with some tartness, lively carbonation with a dry finish.]])
+m4_define([V_NAME], [[Lafontaine]])
+m4_define([V_DESC], [[A modern Saison beer from Montréal's Oshlag microbrewery, Lafontaine is a refreshing, zesty, rice beer with hints of fruit and spices.]])
 
 m4_define([V_STRING], [V_MAJOR.V_MINOR.V_PATCH])
 m4_ifdef([V_EXTRA], [m4_append([V_STRING], [-V_EXTRA])])
@@ -20,7 +20,12 @@ AC_SUBST([PATCHLEVEL_VERSION], [V_PATCH])
 # Following the numbering scheme proposed by libtool for the library version
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
 # This is the library version of liblttng-ust.
-AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0])
+m4_define([UST_LIB_V_MAJOR], [0])
+m4_define([UST_LIB_V_MINOR], [0])
+m4_define([UST_LIB_V_PATCH], [0])
+
+AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [UST_LIB_V_MAJOR:UST_LIB_V_MINOR:UST_LIB_V_PATCH])
+AC_SUBST([LTTNG_UST_LIBRARY_VERSION_MAJOR], [UST_LIB_V_MAJOR])
 # note: remember to update tracepoint.h dlopen() to match this version
 # number. TODO: eventually automate by exporting the major number.
 
@@ -249,22 +254,26 @@ AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xye
 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
 This error can also occur when the liburcu package's configure script has not been run.])])
 
-# URCU library version needed or newer
-m4_define([WRONG_LIBURCU_MSG], [Userspace RCU (liburcu) >= 0.11.0 is needed])
-
-#Macro added in urcu 0.6.6
-AC_CHECK_DECL([caa_likely], [],
-       [AC_MSG_ERROR([WRONG_LIBURCU_MSG])], [[#include <urcu.h>]])
-#Macro added in urcu 0.11.0
-AC_CHECK_DECL([DEFINE_URCU_TLS_IE], [],
-       [AC_MSG_ERROR([WRONG_LIBURCU_MSG])], [[#include <urcu/tls-compat.h>]]
-)
-
 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
 # Part of Userspace RCU library 0.7.2 or better.
 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
 
+AC_MSG_CHECKING([caa_likely()])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+       #include <urcu/compiler.h>
+       void fct(void)
+       {
+               if (caa_likely(1)) {
+               }
+       }
+]])], [
+       AC_MSG_RESULT([yes])
+], [
+       AC_MSG_RESULT([no])
+       AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
+])
+
 # urcu - check that URCU lib is available to compilation
 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
 
@@ -364,6 +373,8 @@ AS_IF([test "x$jni_interface" = "xyes" || test "x$java_agent_jul" = "xyes" || te
        CPPFLAGS="$saved_CPPFLAGS"
 ])
 
+AM_CONDITIONAL([HAVE_JAVAH], [test "x$JAVAH" != "x"])
+
 AS_IF([test "x$java_agent_log4j" = "xyes"], [
        AX_CHECK_CLASSPATH
        AX_CHECK_CLASS([org.apache.log4j.Logger])