1 #ifndef _STDIO_EXT_H 2 3 # include <stdio-common/stdio_ext.h> 4 5 extern int __fsetlocking_internal (FILE *__fp, int __type) attribute_hidden; 6 7 #ifndef NOT_IN_libc 8 # define __fsetlocking(fp, type) INTUSE(__fsetlocking) (fp, type) 9 #endif 10 11 #endif 12