Add SHORT_DBG_HDRS macro template to configure

* configure.ac (SHORT_DBG_HDRS): New AH template.

diff --git a/configure.ac b/configure.ac
index e3590f312dce47d89ea55a68e99be3480b07217b..bda5f42849196692c161f6d63d2a9fd6e7a6ed82 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -667,6 +667,10 @@ AC_ARG_ENABLE(gc-debug,
     keep_back_ptrs=true
     AC_DEFINE([DBG_HDRS_ALL], 1,
               [Define to force debug headers on all objects.])
+    AH_TEMPLATE([SHORT_DBG_HDRS],
+                [Shorten the headers to minimize object size at the expense
+                 of checking for writes past the end (see doc/README.macros).])
+
     case $host in
       ia64-*-linux* )
         AC_DEFINE(MAKE_BACK_GRAPH)