--- a./src/codec_fluidsynth.cpp	2015-07-01 17:11:14.791796473 -0700
+++ b./src/codec_fluidsynth.cpp	2015-07-01 17:11:00.846827600 -0700
@@ -30,6 +30,8 @@
 #ifdef _WIN32
 #include <io.h>
+#else
+#include <unistd.h>
 #endif
 
 #include <istream>