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From 7c3148ec0a2fed4834c6f9869ff7d2da77ba804c Mon Sep 17 00:00:00 2001
From: Joerg Sonnenberger <joerg@bec.de>
Date: Wed, 22 Jun 2016 23:03:43 +0200
Subject: [PATCH] Ignore the MT encoder in XZ 5.2 prerelease versions.
---
configure.ac | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 64775fa..4f7f432 100644
--- a/configure.ac
+++ b/configure.ac
@@ -374,8 +374,11 @@ if test "x$with_lzma" != "xno"; then
AC_CACHE_CHECK(
[whether we have multithread support in lzma],
ac_cv_lzma_has_mt,
- [AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([[#include <lzma.h>]],
+ [AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <lzma.h>]
+ [#if LZMA_VERSION < 50020000]
+ [#error unsupported]
+ [#endif]],
[[lzma_stream_encoder_mt(0, 0);]])],
[ac_cv_lzma_has_mt=yes], [ac_cv_lzma_has_mt=no])])
if test "x$ac_cv_lzma_has_mt" != xno; then
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