perf tools: Convert to NEWT_SUPPORT
For building perf without libnewt, we can set NO_NEWT=1 as a argument of
make. It then defines NO_NEWT_SUPPORT macro for C code to do the proper
handling. However it usually used in a negative semantics - e.g. #ifndef -
so we saw double negations which can be misleading. Convert it to a
positive form to make it more readable.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1348824728-14025-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/helpline.h b/tools/perf/ui/helpline.h
index 2b667ee..e1f126b 100644
--- a/tools/perf/ui/helpline.h
+++ b/tools/perf/ui/helpline.h
@@ -23,16 +23,16 @@
extern char ui_helpline__current[512];
-#ifdef NO_NEWT_SUPPORT
+#ifdef NEWT_SUPPORT
+extern char ui_helpline__last_msg[];
+int ui_helpline__show_help(const char *format, va_list ap);
+#else
static inline int ui_helpline__show_help(const char *format __maybe_unused,
va_list ap __maybe_unused)
{
return 0;
}
-#else
-extern char ui_helpline__last_msg[];
-int ui_helpline__show_help(const char *format, va_list ap);
-#endif /* NO_NEWT_SUPPORT */
+#endif /* NEWT_SUPPORT */
#ifdef NO_GTK2_SUPPORT
static inline int perf_gtk__show_helpline(const char *format __maybe_unused,