X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fbook.cc;h=c7f5dd02378372ba377320d9c1a94dec2899d17b;hb=97a0169312a260933246ab224e4f8b0969871dd5;hp=b59164155415562d6c3c1b6b530fd4084ababd38;hpb=59a6d1a06432fc0ca88c3023c646182f389ec1b5;p=lilypond.git

diff --git a/lily/book.cc b/lily/book.cc
index b591641554..c7f5dd0237 100644
--- a/lily/book.cc
+++ b/lily/book.cc
@@ -20,6 +20,7 @@
 #include "book.hh"
 
 #include <cstdio>
+using namespace std;
 
 #include "main.hh"
 #include "music.hh"