X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/681cb9fb117ab20661273bf45bd5eaa75eddbf8a..9ce569e57e29769e7cc41dae870e78972b26c1a0:/lib/printf.h

diff --git a/lib/printf.h b/lib/printf.h
index 3b3b7c1..fd052b0 100644
--- a/lib/printf.h
+++ b/lib/printf.h
@@ -20,6 +20,8 @@
 #ifndef PRINTF_H
 #define PRINTF_H
 
+#include <stdarg.h>
+
 struct sink;
 
 int byte_vsinkprintf(struct sink *output,