# ------------------------------------------------------------------------------
AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([*** POSIX caps headers not found])])
+AC_CHECK_HEADERS([sys/mman.h], [], [])
AC_CHECK_HEADERS([linux/memfd.h], [], [])
AC_CHECK_HEADERS([linux/vm_sockets.h], [], [], [#include <sys/socket.h>])
#include <sched.h>
#include <string.h>
#include <linux/loop.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
]])
AC_CHECK_DECLS([getrandom],