# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
-AC_INIT([lttng-ust],[2.4.0],[mathieu dot desnoyers at efficios dot com])
+AC_INIT([lttng-ust],[2.4.2],[mathieu dot desnoyers at efficios dot com])
# Following the numbering scheme proposed by libtool for the library version
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
+# Check if the compiler support weak symbols
+AX_SYS_WEAK_ALIAS
+
+if test "x${ax_cv_sys_weak_alias}" = "xno"; then
+ AC_MSG_ERROR([Your platform doesn't support weak symbols.])
+fi
+
## Checks for libraries.
AC_CHECK_LIB([dl], [dlopen],
[
AC_CHECK_LIB([pthread], [pthread_create])
+# Check for dlfcn.h
+AC_CHECK_HEADER([dlfcn.h])
+AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
+ [AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
+ [#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
+ #include <dlfcn.h>])
+ ],
+ [ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
+AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
+
# Checks for header files.
#AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
AC_CHECK_HEADERS([jni.h],[],[
AC_MSG_ERROR([missing jni.h
Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path.
-Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.])
+Use the --with-java-jdk=DIR option to point to your JDK directory, or disable the JNI interface.])
])
])
AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])