+## ----------------------------------- ##
+## Check if --with-dmalloc was given. ##
+## ----------------------------------- ##
+
+# serial 1
+
+AC_DEFUN([DN_WITH_DMALLOC],
+[AC_MSG_CHECKING([if malloc debugging is wanted])
+AC_ARG_WITH(dmalloc,
+[ --with-dmalloc use dmalloc ( http://www.dmalloc.com )],
+[if test "$withval" = yes; then
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(WITH_DMALLOC,1,
+ [Define if using the dmalloc debugging malloc package])
+ AC_CHECK_HEADERS(dmalloc.h)
+ AC_CHECK_LIB(dmallocthcxx, dmalloc_malloc,,AC_MSG_ERROR([Threaded C++ dmalloc library not found]))
+else
+ AC_MSG_RESULT(no)
+fi], [AC_MSG_RESULT(no)])
+])