LIBS="$save_LIBS"
AC_SUBST(CAP_LIBS)
+AC_CHECK_FUNCS([fanotify_init fanotify_mark name_to_handle_at])
+AC_CHECK_DECLS([gettid, pivot_root], [], [], [[#include <sys/types.h>
+#include <unistd.h>
+#include <sys/mount.h>]])
+
# This makes sure pkg.m4 is available.
m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])