--- gcc-3.4.6/libiberty/pex-unix.c	2003-01-24 21:02:11.000000000 +0100
+++ libiberty/pex-unix.c	2013-05-19 20:23:32.000000000 +0200
@@ -44,6 +44,10 @@
 #define waitpid(pid, status, flags) wait(status)
 #endif
 
+#ifdef __amigaos__
+#define fork() vfork()
+#endif
+
 extern int execv ();
 extern int execvp ();