Check that liblzma has lzma_cputhreads(), to fix Mac build failure. F…

…ixes #102. (#103) * Check that liblzma has lzma_threads when building * Fix has_lzma_cputhreads.cpp location
boostorg · Nov 19, 2019 · 601244b · 601244b
1 parent 64abdfc
commit 601244b
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diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
@@ -79,9 +79,15 @@ else
 if $(NO_COMPRESSION) != 1 && $(NO_LZMA) != 1
 {
     using lzma ;
+
+    exe has_lzma_cputhreads : ../build/has_lzma_cputhreads.cpp /lzma//lzma ;
+    explicit has_lzma_cputhreads ;
+
     lzma-requirements =
         [ ac.check-library /lzma//lzma : <library>/lzma//lzma
-          <source>lzma.cpp ] ;
+          <source>lzma.cpp ]
+        [ check-target-builds has_lzma_cputhreads
+            : : <define>BOOST_IOSTREAMS_LZMA_NO_MULTITHREADED=1 ] ;
 }
 else
 {

diff --git a/build/has_lzma_cputhreads.cpp b/build/has_lzma_cputhreads.cpp
@@ -0,0 +1,10 @@
+// Copyright 2019 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <lzma.h>
+
+int main()
+{
+    return lzma_cputhreads();
+}