+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[
+ /* Minix 3.1.8 has a bug: <stddef.h> must be included before
+ <sys/utsname.h>. */
+ #include <stddef.h>
+ #include <sys/utsname.h>
+ ]], [uname])