--- grhino-0.16.0/book.cc.gcc43	2006-11-25 12:07:41.000000000 -0500
+++ grhino-0.16.0/book.cc	2008-02-22 14:31:08.000000000 -0500
@@ -28,6 +28,7 @@
 #include <vector>
 #include <iostream>
 #include <stdexcept>
+#include <cstdlib> // for abort
 
 #ifdef _
 #undef _
--- grhino-0.16.0/game.cc.gcc43	2006-11-25 12:07:42.000000000 -0500
+++ grhino-0.16.0/game.cc	2008-02-22 14:30:22.000000000 -0500
@@ -37,6 +37,7 @@
 #include <sys/stat.h> 
 #include <unistd.h>
 #include <fcntl.h>
+#include <cstdlib> // for getenv
 
 #ifdef _
 #  undef _
--- grhino-0.16.0/log_proc.h.gcc43	2006-11-25 12:07:42.000000000 -0500
+++ grhino-0.16.0/log_proc.h	2008-02-22 14:33:58.000000000 -0500
@@ -22,6 +22,7 @@
 
 #include <exception>
 #include <stdexcept>
+#include <cstdlib> // for abort
 #include <string>
 #include <fstream>
 #include <iomanip>