1 files changed, 34 insertions, 0 deletions
diff --git a/src/liblzma/common/hardware_cputhreads.c b/src/liblzma/common/hardware_cputhreads.c
new file mode 100644
index 0000000..5d246d2
--- /dev/null
+++ b/src/liblzma/common/hardware_cputhreads.c
@@ -0,0 +1,34 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       hardware_cputhreads.c
+/// \brief      Get the number of CPU threads or cores
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "common.h"
+
+#include "tuklib_cpucores.h"
+
+
+#ifdef HAVE_SYMBOL_VERSIONS_LINUX
+// This is for compatibility with binaries linked against liblzma that
+// has been patched with xz-5.2.2-compat-libs.patch from RHEL/CentOS 7.
+LZMA_SYMVER_API("lzma_cputhreads@XZ_5.2.2",
+	uint32_t, lzma_cputhreads_522)(void) lzma_nothrow
+		__attribute__((__alias__("lzma_cputhreads_52")));
+
+LZMA_SYMVER_API("lzma_cputhreads@@XZ_5.2",
+	uint32_t, lzma_cputhreads_52)(void) lzma_nothrow;
+
+#define lzma_cputhreads lzma_cputhreads_52
+#endif
+extern LZMA_API(uint32_t)
+lzma_cputhreads(void)
+{
+	return tuklib_cpucores();
+}