diff --git a/src/os_amiga.h b/src/os_amiga.h
index 336cbdb..718241d 100644
--- a/src/os_amiga.h
+++ b/src/os_amiga.h
@@ -88,6 +88,10 @@
 #ifdef __GNUC__
 # include <sys/stat.h>
 # include <unistd.h>
+# include <limits.h>
+# include <errno.h>
+# include <time.h>
+# include <dirent.h>
 #endif
 
 #ifndef PROTO