code review 5490053: runtime: make more build-friendly

src/pkg/runtime/thread_netbsd.c

 // Use of this source file is governed by a BSD-style
 // license that can be found in the LICENSE file.`
 
 #include "runtime.h"
-#include "defs.h"
-#include "os.h"
+#include "defs_GOOS_GOARCH.h"
+#include "os_GOOS.h"
 #include "stack.h"
 
 enum
 {
         ESRCH = 3,
         ENOTSUP = 91,
 
         // From NetBSD's sys/time.h
         CLOCK_REALTIME = 0,
         CLOCK_VIRTUAL = 1,
@@ skipping 171 matching lines @@
                 switch(g->sigcode0) {
                 case FPE_INTDIV:
                         runtime·panicstring("integer divide by zero");
                 case FPE_INTOVF:
                         runtime·panicstring("integer overflow");
                 }
                 runtime·panicstring("floating point error");
         }
         runtime·panicstring(runtime·sigtab[g->sig].name);
 }