Hello iant@golang.org (cc: gofrontend-dev@googlegroups.com), I'd like you to review this change to https://gofrontend.googlecode.com/hg/
*** Submitted as http://code.google.com/p/gofrontend/source/detail?r=351201702211 *** syscall: Don't use PtraceRegs if it is not defined. R=iant CC=gofrontend-dev http://codereview.appspot.com/5598057