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-rw-r--r--Build/source/m4/kpse-lib-version.m425
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diff --git a/Build/source/m4/kpse-lib-version.m4 b/Build/source/m4/kpse-lib-version.m4
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+# Private macros for the TeX Live (TL) tree.
+# Copyright (C) 2011 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holder
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# KPSE_LIB_VERSION(NAME)
+# ----------------------
+# Split NAME_version into NAME_major, NAME_minor, and NAME_micro
+# (ignoring lowercase letters forming an optional suffix).
+AC_DEFUN([KPSE_LIB_VERSION],
+[m4_bpatsubst($1_version, [^\([0-9]+\).\([0-9]+\).\([0-9]+\)[a-z]*$],
+ [m4_define([$1_major], [\1])m4_define([$1_minor], [\2])m4_define([$1_micro], [\3])])[]dnl
+]) # KPSE_LIB_VERSION
+
+# KPSE_LT_VERSION(NAME)
+# ---------------------
+# Split NAME_version as above and define _LT_VERSINFO.
+AC_DEFUN([KPSE_LT_VERSION],
+[KPSE_LIB_VERSION([$1])
+AC_SUBST(AS_TR_CPP($1)[_LT_VERSINFO],
+ [m4_eval($1_major+$1_minor):$1_micro:$1_minor])[]dnl
+]) # KPSE_LT_VERSION
+