- gl_CHECK_NEXT_HEADERS([stdlib.h])
- AC_CHECK_TYPES([struct random_data],
- [], [HAVE_STRUCT_RANDOM_DATA=0],
- [[#include <stdlib.h>]])
+ gl_NEXT_HEADERS([stdlib.h])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use, and which is not
+ dnl guaranteed by C89.
+ gl_WARN_ON_USE_PREPARE([[#include <stdlib.h>
+#if HAVE_SYS_LOADAVG_H
+# include <sys/loadavg.h>
+#endif
+#if HAVE_RANDOM_H
+# include <random.h>
+#endif
+ ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt
+ initstate initstate_r mkdtemp mkostemp mkostemps mkstemp mkstemps
+ posix_openpt ptsname ptsname_r random random_r realpath rpmatch
+ secure_getenv setenv setstate setstate_r srandom srandom_r
+ strtod strtoll strtoull unlockpt unsetenv])