better output using AS_HELP_STRING macro

diff --git a/configure.in b/configure.in
index 5354fb5..18ff000 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -12,7 +12,8 @@ AC_PROG_CXX
 AM_PROG_LIBTOOL
 
 
-AC_ARG_WITH(optimize,[  --with-optimize      compile with optimizing],
+AC_ARG_WITH(optimize,
+AS_HELP_STRING([--with-optimize],[compile with optimizing]),
 [
     AC_MSG_CHECKING(for optimizing)
     if test "$withval" != "no"; then