# Process this file with autoconf to produce a configure script.
-AC_INIT([userspace-rcu], [0.2.3-alpha], [mathieu dot desnoyers at polymtl dot ca])
+AC_INIT([userspace-rcu], [0.2.3], [mathieu dot desnoyers at polymtl dot ca])
AC_CONFIG_AUX_DIR([config])
AC_CANONICAL_TARGET
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
AC_CONFIG_SRCDIR([urcu.h])
+AM_PROG_MKDIR_P
+AC_CONFIG_HEADERS([config.h urcu/config.h])
+
+# Keep at the end to do not pollute installed header.
AH_TEMPLATE([CONFIG_URCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
AH_TEMPLATE([CONFIG_URCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.])
AH_TEMPLATE([CONFIG_URCU_HAVE_FUTEX], [Defined when on a system with futex support.])
-AC_CONFIG_HEADERS([urcu/config.h])
# Checks for programs.
AC_PROG_CC
AC_SUBST(SUBARCHTYPE)
[
-if test "x$ARCHTYPE" = "xx86" -a "x$target_cpu" != "xi386" -a "x$target_cpu" != "xi486" -a "x$target_cpu" != "xi586"; then
+#if test "x$ARCHTYPE" = "xx86" -a "x$target_cpu" != "xi386" -a "x$target_cpu" != "xi486" -a "x$target_cpu" != "xi586"; then
+#For now, using lock; addl compatibility mode even for i686, because the
+#Pentium III is seen as a i686, but lacks mfence instruction.
+#Only using fence for x86_64.
+if test "x$ARCHTYPE" = "xx86" -a "x$target_cpu" != "xi386" -a "x$target_cpu" != "xi486" -a "x$target_cpu" != "xi586" -a "x$target_cpu" != "xi686"; then
]
AC_DEFINE([CONFIG_URCU_HAVE_FENCE], [1])
[