perf ui: Reimplement the popup windows using libslang
Just another step in stopping the use of libnewt in perf.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vtxnmz1t1807ykprapnk9njl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index 510adac..9c59b95 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -29,5 +29,6 @@
void ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
void ui__warning_paranoid(void);
+void ui__error(const char *format, ...) __attribute__((format(printf, 1, 2)));
#endif /* __PERF_DEBUG_H */