--- a/configure.ac Thu Jun 19 10:18:18 2008 +0000
+++ b/configure.ac Thu Jun 19 10:18:58 2008 +0000
@@ -490,6 +490,30 @@
AC_SUBST(ENABLE_EOE,[$eoe])
#------------------------------------------------------------------------------
+# CPU timestamp counter support
+#------------------------------------------------------------------------------
+
+AC_ARG_ENABLE([cycles],
+ AS_HELP_STRING([--enable-cycles],
+ [Use CPU timestamp counter (default: no)]),
+ [
+ case "${enableval}" in
+ yes) cycles=1
+ ;;
+ no) cycles=0
+ ;;
+ *) AC_MSG_ERROR([Invalid value for --enable-cycles])
+ ;;
+ esac
+ ],
+ [cycles=0]
+)
+
+if test "x${cycles}" = "x1"; then
+ AC_DEFINE([EC_HAVE_CYCLES], [1], [Use CPU timestamp counter])
+fi
+
+#------------------------------------------------------------------------------
AC_CONFIG_FILES([
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