# can't operate securely; I would rather refuse to be built.
AC_CHECK_FUNC(openat,
[],
- AC_MSG_ERROR(missing required openat function))
+ AC_MSG_ERROR(missing required openat function))
+AC_CHECK_DECLS([O_DIRECTORY],
+ [],
+ [AC_MSG_ERROR(missing required O_DIRECTORY flag in fcntl.h)],
+ [[#include <fcntl.h>]])
AC_CHECK_DECLS([O_NOFOLLOW],
[],
- [AC_MSG_ERROR(missing required O_NOFOLLOW flag in fcntl.h)],
- [[#include <fcntl.h>]])
+ [AC_MSG_ERROR(missing required O_NOFOLLOW flag in fcntl.h)],
+ [[#include <fcntl.h>]])
+AC_CHECK_DECLS([O_PATH],
+ [],
+ [AC_MSG_ERROR(missing required O_PATH flag in fcntl.h)],
+ [[#define _GNU_SOURCE
+ #include <fcntl.h>]])
LT_INIT
AC_OUTPUT