Merge remote-tracking branch 'origin/1.6' into 1.7

src/module_header.h

@@ -42,6 +42,7 @@
 #include <string.h> /* strerror(3) */
 #include <stdint.h>
 #include <stdbool.h>
+#include <stdio.h> /* ssize_t for Apple */
 #include <sys/types.h> /* ssize_t */
 
 /** Extern modifier for all public functions */