diff --git a/lib/leap-seconds.def b/lib/leap-seconds.def
new file mode 100644
index 00000000..c64399ad
--- /dev/null
+++ b/lib/leap-seconds.def
@@ -0,0 +1,222 @@
+/*** autogenerated by: ltrcc ../../lib/leap-seconds.list */
+
+#include <stdint.h>
+#include <limits.h>
+#include "leaps.h"
+#include "leap-seconds.h"
+
+#if !defined INCLUDED_ltrcc_generated_def_
+#define INCLUDED_ltrcc_generated_def_
+
+#if !defined countof
+# define countof(x)	(sizeof(x) / sizeof(*x))
+#endif	/* !countof */
+
+const int32_t leaps_corr[] = {
+	10,
+	10,
+	11,
+	12,
+	13,
+	14,
+	15,
+	16,
+	17,
+	18,
+	19,
+	20,
+	21,
+	22,
+	23,
+	24,
+	25,
+	26,
+	27,
+	28,
+	29,
+	30,
+	31,
+	32,
+	33,
+	34,
+	35,
+	36,
+	37,
+	37
+};
+const size_t nleaps_corr = countof(leaps_corr);
+
+const uint32_t leaps_ymd[] = {
+	0x00U/* 0 */,
+	0x1ecf1fU/* 2019103 */,
+	0x1ed19eU/* 2019742 */,
+	0x1ed31fU/* 2020127 */,
+	0x1ed71fU/* 2021151 */,
+	0x1edb1fU/* 2022175 */,
+	0x1edf1fU/* 2023199 */,
+	0x1ee31fU/* 2024223 */,
+	0x1ee71fU/* 2025247 */,
+	0x1eeb1fU/* 2026271 */,
+	0x1eef1fU/* 2027295 */,
+	0x1ef59eU/* 2028958 */,
+	0x1ef99eU/* 2029982 */,
+	0x1efd9eU/* 2031006 */,
+	0x1f059eU/* 2033054 */,
+	0x1f0f1fU/* 2035487 */,
+	0x1f171fU/* 2037535 */,
+	0x1f1b1fU/* 2038559 */,
+	0x1f219eU/* 2040222 */,
+	0x1f259eU/* 2041246 */,
+	0x1f299eU/* 2042270 */,
+	0x1f2f1fU/* 2043679 */,
+	0x1f359eU/* 2045342 */,
+	0x1f3b1fU/* 2046751 */,
+	0x1f571fU/* 2053919 */,
+	0x1f631fU/* 2056991 */,
+	0x1f719eU/* 2060702 */,
+	0x1f7d9eU/* 2063774 */,
+	0x1f831fU/* 2065183 */,
+	UINT32_MAX
+};
+const size_t nleaps_ymd = countof(leaps_ymd);
+
+const uint32_t leaps_ymcw[] = {
+	0x00U/* 0 */,
+	0x191ecf2dU/* 421449517 */,
+	0x191ed1adU/* 421450157 */,
+	0x191ed32fU/* 421450543 */,
+	0x191ed729U/* 421451561 */,
+	0x191edb2aU/* 421452586 */,
+	0x191edf2bU/* 421453611 */,
+	0x191ee32dU/* 421454637 */,
+	0x191ee72eU/* 421455662 */,
+	0x191eeb2fU/* 421456687 */,
+	0x191eef29U/* 421457705 */,
+	0x191ef5aaU/* 421459370 */,
+	0x191ef9abU/* 421460395 */,
+	0x191efdacU/* 421461420 */,
+	0x191f05afU/* 421463471 */,
+	0x191f0f2cU/* 421465900 */,
+	0x191f172fU/* 421467951 */,
+	0x191f1b29U/* 421468969 */,
+	0x191f21aaU/* 421470634 */,
+	0x191f25abU/* 421471659 */,
+	0x191f29acU/* 421472684 */,
+	0x191f2f2fU/* 421474095 */,
+	0x191f35a9U/* 421475753 */,
+	0x191f3b2cU/* 421477164 */,
+	0x191f572eU/* 421484334 */,
+	0x191f632bU/* 421487403 */,
+	0x191f71aeU/* 421491118 */,
+	0x191f7daaU/* 421494186 */,
+	0x191f832eU/* 421495598 */,
+	UINT32_MAX
+};
+const size_t nleaps_ymcw = countof(leaps_ymcw);
+
+const uint32_t leaps_d[] = {
+	0x00U/* 0 */,
+	0x21150U/* 135504 */,
+	0x21206U/* 135686 */,
+	0x212beU/* 135870 */,
+	0x2142bU/* 136235 */,
+	0x21598U/* 136600 */,
+	0x21705U/* 136965 */,
+	0x21873U/* 137331 */,
+	0x219e0U/* 137696 */,
+	0x21b4dU/* 138061 */,
+	0x21cbaU/* 138426 */,
+	0x21eddU/* 138973 */,
+	0x2204aU/* 139338 */,
+	0x221b7U/* 139703 */,
+	0x22492U/* 140434 */,
+	0x22824U/* 141348 */,
+	0x22affU/* 142079 */,
+	0x22c6cU/* 142444 */,
+	0x22e8fU/* 142991 */,
+	0x22ffcU/* 143356 */,
+	0x23169U/* 143721 */,
+	0x2338eU/* 144270 */,
+	0x235b1U/* 144817 */,
+	0x237d6U/* 145366 */,
+	0x241d3U/* 147923 */,
+	0x2461bU/* 149019 */,
+	0x24b18U/* 150296 */,
+	0x24f5fU/* 151391 */,
+	0x25185U/* 151941 */,
+	UINT32_MAX
+};
+const size_t nleaps_d = countof(leaps_d);
+
+const int32_t leaps_s[] = {
+	INT32_MIN,
+	0x3c266ffU/* 63071999 */,
+	0x4b257ffU/* 78796799 */,
+	0x5a4ebffU/* 94694399 */,
+	0x7861f7fU/* 126230399 */,
+	0x96752ffU/* 157766399 */,
+	0xb48867fU/* 189302399 */,
+	0xd2b0b7fU/* 220924799 */,
+	0xf0c3effU/* 252460799 */,
+	0x10ed727fU/* 283996799 */,
+	0x12cea5ffU/* 315532799 */,
+	0x159fca7fU/* 362793599 */,
+	0x1780fdffU/* 394329599 */,
+	0x1962317fU/* 425865599 */,
+	0x1d25e9ffU/* 489023999 */,
+	0x21dae4ffU/* 567993599 */,
+	0x259e9d7fU/* 631151999 */,
+	0x277fd0ffU/* 662687999 */,
+	0x2a50f57fU/* 709948799 */,
+	0x2c3228ffU/* 741484799 */,
+	0x2e135c7fU/* 773020799 */,
+	0x30e723ffU/* 820454399 */,
+	0x33b8487fU/* 867715199 */,
+	0x368c0fffU/* 915148799 */,
+	0x43b71b7fU/* 1136073599 */,
+	0x495c077fU/* 1230767999 */,
+	0x4fef92ffU/* 1341100799 */,
+	0x55932d7fU/* 1435708799 */,
+	0x5868467fU/* 1483228799 */,
+	INT32_MAX
+};
+const size_t nleaps_s = countof(leaps_s);
+
+const uint32_t leaps_hms[] = {
+	UINT32_MAX,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	0x173b3cU/* 1522492 */,
+	UINT32_MAX
+};
+const size_t nleaps_hms = countof(leaps_hms);
+
+/* exported number of leap transitions */
+const size_t nleaps = countof(leaps_corr);
+
+#endif  /* INCLUDED_ltrcc_generated_def_ */