Index: /trunk/src/VBox/Frontends/VBoxHeadless/VBoxHeadless.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VBoxHeadless/VBoxHeadless.cpp	(revision 59409)
+++ /trunk/src/VBox/Frontends/VBoxHeadless/VBoxHeadless.cpp	(revision 59410)
@@ -50,4 +50,5 @@
 
 #ifdef RT_OS_DARWIN
+# include <iprt/asm.h>
 # include <dlfcn.h>
 # include <sys/mman.h>