# 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], [0.3.1], [mathieu dot desnoyers at polymtl dot ca])
AC_CONFIG_AUX_DIR([config])
AC_CANONICAL_TARGET
AC_CANONICAL_HOST
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.])
+AH_TEMPLATE([CONFIG_URCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks
+cmpxchg instruction.])
# Checks for programs.
AC_PROG_CC
AC_CHECK_FUNCS([bzero gettimeofday munmap strtoul])
# Find arch type
-case $target_cpu in
+case $host_cpu in
i386) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i486) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i586) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
- i686) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
+ i486) ARCHTYPE="x86";;
+ i586) ARCHTYPE="x86";;
+ i686) ARCHTYPE="x86";;
x86_64) ARCHTYPE="x86";;
powerpc) ARCHTYPE="ppc" ;;
ppc64) ARCHTYPE="ppc" ;;
ppc) ARCHTYPE="ppc" ;;
s390) ARCHTYPE="s390" ;;
s390x) ARCHTYPE="s390" ;;
+ sparc64) ARCHTYPE="sparc64" ;;
*) ARCHTYPE="unknown";;
esac
AC_SUBST(SUBARCHTYPE)
[
-#if test "x$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$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586"; then
#For now, using lock; addl compatibility mode even for i686, because the
#Pentium III is seen as a i686, but lacks mfence instruction.
#Only using fence for x86_64.
-if test "x$ARCHTYPE" = "xx86" -a "x$target_cpu" != "xi386" -a "x$target_cpu" != "xi486" -a "x$target_cpu" != "xi586" -a "x$target_cpu" != "xi686"; then
+if test "x$ARCHTYPE" = "xx86" -a "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586" -a "x$host_cpu" != "xi686"; then
]
AC_DEFINE([CONFIG_URCU_HAVE_FENCE], [1])
[
AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = xx86compat ])
+[
+if test "x$SUBARCHTYPE" = xx86compat; then
+]
+ AC_DEFINE([CONFIG_URCU_COMPAT_ARCH], [1])
+[
+fi
+]
+
AC_ARG_ENABLE([smp-support], [ --disable-smp-support Disable SMP support. Warning: only use this
on uniprocessor systems. [[default=enabled]]], [def_smp_support=$enableval], [def_smp_support="yes"])