Keep the kernel header scrubber's data structures in sync.
If you rewrite the tokens of a #if you need to rewrite the expression to match
because either might be used later. This was showing up as SIGRTMAX being
rewritten in a #define but not in the #ifndef that guarded it, for which case
I've added a unit test.
Change-Id: I6929675461a1afe272edd667594529fd84a3dc4d
diff --git a/libc/kernel/uapi/asm-generic/signal.h b/libc/kernel/uapi/asm-generic/signal.h
index a16622a..e103240 100644
--- a/libc/kernel/uapi/asm-generic/signal.h
+++ b/libc/kernel/uapi/asm-generic/signal.h
@@ -67,7 +67,7 @@
#define SIGUNUSED 31
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define __SIGRTMIN 32
-#ifndef SIGRTMAX
+#ifndef __SIGRTMAX
#define __SIGRTMAX _KERNEL__NSIG
#endif
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */