updated for version 7.1-104
diff --git a/src/proto/getchar.pro b/src/proto/getchar.pro
index cc033a3..06081c3 100644
--- a/src/proto/getchar.pro
+++ b/src/proto/getchar.pro
@@ -38,6 +38,7 @@
 void updatescript __ARGS((int c));
 int vgetc __ARGS((void));
 int safe_vgetc __ARGS((void));
+int plain_vgetc __ARGS((void));
 int vpeekc __ARGS((void));
 int vpeekc_nomap __ARGS((void));
 int vpeekc_any __ARGS((void));