Issue 4550 (1/2) Avoid "using namespace std;" in included files

[lilypond.git] / lily / system.cc

diff --git a/lily/system.cc b/lily/system.cc
index 0551b85cbccda5286e770fdc238722edda48aec7..79c7891bce868fba93a70ef1b68fa6f79174834c 100644 (file)
--- a/lily/system.cc
+++ b/lily/system.cc
@@ -42,6 +42,8 @@
 #include "unpure-pure-container.hh"
 #include "lily-imports.hh"
 
+using std::vector;
+
 System::System (System const &src)
   : Spanner (src)
 {