Improvements in vertical skyline approximations (issue 2148).

[lilypond.git] / flower / include / yaffut.hh

diff --git a/flower/include/yaffut.hh b/flower/include/yaffut.hh
index 8b10d23aa5a8dcde1fc5153d0787f7975a186946..148d1a88015709ada81ae69babb4affc223e760c 100644 (file)
--- a/flower/include/yaffut.hh
+++ b/flower/include/yaffut.hh
@@ -21,6 +21,7 @@
 #include <memory>
 #include <sstream>
 #include <stdexcept>
+#include <unistd.h>
 
 #define YAFFUT_STRINGIZE(x) YAFFUT_STRINGIZE_(x)
 #define YAFFUT_STRINGIZE_(x) #x