https://bugs.gentoo.org/580372

include sys/sysmacros.h for major/minor prototypes

--- a/photosyst.c
+++ b/photosyst.c
@@ -164,6 +164,7 @@
 #include <signal.h>
 #include <string.h>
 #include <dirent.h>
+#include <sys/sysmacros.h>
 
 #include <sys/socket.h>
 #include <netinet/in.h>