AC_CHECK_FUNCS([fanotify_init fanotify_mark])
AC_CHECK_FUNCS([__secure_getenv secure_getenv])
-AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at], [], [], [[#include <sys/types.h>
+AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns], [], [], [[#include <sys/types.h>
#include <unistd.h>
#include <sys/mount.h>
-#include <fcntl.h>]])
+#include <fcntl.h>
+#include <sched.h>]])
# This makes sure pkg.m4 is available.
m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
+#include <errno.h>
#include <linux/oom.h>
#include <linux/input.h>
#include <linux/if_link.h>
#endif
#endif
+
+#ifndef __NR_setns
+# if defined(__x86_64__)
+# define __NR_setns 308
+# elif defined(__i386__)
+# define __NR_setns 346
+# else
+# error "__NR_setns is not defined"
+# endif
+#endif
+
+#if !HAVE_DECL_SETNS
+static inline int setns(int fd, int nstype) {
+ return syscall(__NR_setns, fd, nstype);
+}
+#endif