+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_addopen
+# define posix_spawn_file_actions_addopen(a, b, c, d, e) \
+ (GL_LINK_WARNING ("posix_spawn_file_actions_addopen is unportable - " \
+ "use gnulib module posix_spawn_file_actions_addopen for portability"), \
+ posix_spawn_file_actions_addopen (a, b, c, d, e))