server: Fix context_powerpc.c compilation.

server/context_powerpc.c

diff --git a/server/context_powerpc.c b/server/context_powerpc.c
index e7c4455..5ce6364 100644
--- a/server/context_powerpc.c
+++ b/server/context_powerpc.c
@@ -34,6 +34,8 @@
 # include <sys/ptrace.h>
 #endif
 
+#include "windef.h"
+
 #if 0  /* no longer used */
 
 #ifndef PTRACE_PEEKUSER
@@ -48,8 +50,6 @@
 # endif
 #endif /* PTRACE_POKEUSER */
 
-#include "windef.h"
-
 #include "file.h"
 #include "thread.h"
 #include "request.h"