diff -NrU5 xsp-2.2.orig/configure.in xsp-2.2/configure.in
--- xsp-2.2.orig/configure.in	2009-01-18 00:13:11.000000000 +0100
+++ xsp-2.2/configure.in	2009-01-18 00:14:53.000000000 +0100
@@ -15,24 +15,22 @@
 #
 # --enable-tracing
 #
 AC_MSG_CHECKING([if tracing is requested])
 AC_ARG_ENABLE([tracing],
- AC_HELP_STRING([--enable-tracing],[enable producing XSP tracing messages]),
- [enable_tracing=$withval],
- [enable_tracing=no])
+ [AC_HELP_STRING([--enable-tracing],[enable producing XSP tracing messages])] )
 
 if test "x$enable_tracing" != "xno" ; then
    	AC_MSG_RESULT([yes])
 	WEBTRACING="-define:WEBTRACE -define:TRACE"
 else
 	AC_MSG_RESULT([no])
 	WEBTRACING=""
 fi
 
 AC_ARG_WITH([runtime],
- AC_HELP_STRING([--with-runtime],[use the specified runtime when xsp is installed]),
+ [AC_HELP_STRING([--with-runtime],[use the specified runtime when xsp is installed])],
  [RUNTIME=$withval])
 
 AC_PATH_PROG(CSC, csc, no)
 AC_PATH_PROG(MCS, mcs, no)
 AC_PATH_PROG(GMCS, gmcs, no)