Index: src/md.h
--- src/md.h.orig
+++ src/md.h
@@ -32,6 +32,8 @@
 /*--------------------------------------------------------------------------*/
 /* std collection of includes */
 // system
+#include <sys/param.h>
+#undef ctob
 #include <new>
 #include <cstdarg>
 #include <cassert>
@@ -43,6 +45,7 @@
 #include <cerrno>
 #include <csetjmp>
 #include <csignal>
+#include <cstring>
 #include <iostream>
 // types
 #include <complex>