include stddef.h for size_t

diff --git a/iolayert.h b/iolayert.h
index 73616c1c7caacdb12138eff61c6d7f50e6e87b48..9857d67b0ebb02475ca69c309653261b706ca386 100644 (file)
--- a/iolayert.h
+++ b/iolayert.h
@@ -5,6 +5,7 @@
 #include <unistd.h>
 #endif
 #include <sys/types.h>
+#include <stddef.h>
 
 typedef enum { FDSEEK, FDNOSEEK, BUFFER, CBSEEK, CBNOSEEK, BUFCHAIN } io_type;