Bug 608423 - configure shouldn't assume GNU sed when checking yasm version. r,a2.0=ted

configure.in

@@ -4726,10 +4726,10 @@ AC_CHECK_PROGS(YASM, yasm, "")
 if test -n "$YASM"; then
   dnl Pull out yasm's version string
   changequote(,)
-  _YASM_VER_FILTER='s|.* ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+).*|\1|p'
+  _YASM_VER_FILTER='s|.* \([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\).*|\1|p'
   changequote([,])
 
-  YASM_VERSION=`yasm --version | sed -nre "$_YASM_VER_FILTER"`
+  YASM_VERSION=`yasm --version | sed -ne "$_YASM_VER_FILTER"`
   _YASM_MAJOR_VERSION=`echo ${YASM_VERSION} | $AWK -F\. '{ print $1 }'`
   _YASM_MINOR_VERSION=`echo ${YASM_VERSION} | $AWK -F\. '{ print $2 }'`
   _YASM_RELEASE=`      echo ${YASM_VERSION} | $AWK -F\. '{ print $3 }'`