os x changes

src/libmach/OpenBSD.c

@@ -0,0 +1 @@
+#include "nosys.c"

src/libmach/elfcorelinux386.c

@@ -4,6 +4,9 @@
 #include "elf.h"
 #include "ureg386.h"
 
+#undef errno
+#define errno	uregerrno
+
 typedef struct Lreg Lreg;
 typedef struct Status Status;
 typedef struct Psinfo Psinfo;

src/libmach/machpower.c

@@ -570,7 +570,7 @@ sub(Opcode *o, Instr *i)
 		bprint(i, "\tR%d,$%d,R%d", i->ra, i->simm, i->rd);
 }
 
-#define div qdiv
+#define div power_div
 
 static void
 div(Opcode *o, Instr *i)