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-rw-r--r--Build/source/utils/xindy/m4/tl_msg_error.m423
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diff --git a/Build/source/utils/xindy/m4/tl_msg_error.m4 b/Build/source/utils/xindy/m4/tl_msg_error.m4
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+# Public macros for the TeX Live (TL) subdirectory utils/xindy/.
+# Copyright (C) 2009 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holders
+# give unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 0
+
+# TL_MSG_ERROR(ERROR, [EXIT-STATUS = 1])
+# --------------------------------------
+# Same as AC_MSG_ERROR(ERROR, EXIT-STATUS), except when configuring with
+# --disable-build (in the TL tree when building xindy has been disabled).
+#
+# The new (2009) TL build system requires all directories to be configured
+# for the benefit of 'dist*' Make targets. When building xindy has been
+# disabled, configuring must not fail because, e.g., clisp is missing.
+AC_DEFUN([TL_MSG_ERROR],
+[AS_IF([test "x$enable_build" = xno],
+ [AC_MSG_WARN([building xindy has been disabled and would fail because
+$1])],
+ [AC_MSG_ERROR($@)])
+]) # TL_MSG_ERROR