# define CURL_SUFFIX_CURL_OFF_TU ULL
# define CURL_TYPEOF_CURL_SOCKLEN_T int
+#elif defined(__TANDEM)
+# if ! defined(__LP64)
+ /* Required for 32-bit NonStop builds only. */
+# define CURL_TYPEOF_CURL_OFF_T long long
+# define CURL_FORMAT_CURL_OFF_T "lld"
+# define CURL_FORMAT_CURL_OFF_TU "llu"
+# define CURL_SUFFIX_CURL_OFF_T LL
+# define CURL_SUFFIX_CURL_OFF_TU ULL
+# define CURL_TYPEOF_CURL_SOCKLEN_T int
+# endif
+
#elif defined(_WIN32_WCE)
# define CURL_TYPEOF_CURL_OFF_T __int64
# define CURL_FORMAT_CURL_OFF_T "I64d"