File lz-export.diff of Package lz4

[    9s] bench.o: In function `BMK_benchMem':
[    9s] /home/abuild/rpmbuild/BUILD/lz4-1.8.0/programs/bench.c:221: undefined reference to `LZ4_XXH64'

---
 lib/xxhash.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: lz4-1.8.0/lib/xxhash.h
===================================================================
--- lz4-1.8.0.orig/lib/xxhash.h
+++ lz4-1.8.0/lib/xxhash.h
@@ -105,7 +105,7 @@ typedef enum { XXH_OK=0, XXH_ERROR } XXH
 #    define XXH_PUBLIC_API static   /* this version may generate warnings for unused static functions; disable the relevant warning */
 #  endif
 #else
-#  define XXH_PUBLIC_API   /* do nothing */
+#  define XXH_PUBLIC_API __attribute__((visibility("default")))  /* do nothing */
 #endif /* XXH_PRIVATE_API */
 
 /*!XXH_NAMESPACE, aka Namespace Emulation :