Select legacy level for cmake

diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index 93a167cafb6a1c376bf402195dbc845945ccf649..fdf7c8637ea215e2739ed237b41a9a0e3014de2a 100644 (file)
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -86,7 +86,8 @@ option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" OFF)
 
 if (ZSTD_LEGACY_SUPPORT)
     message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
-    add_definitions(-DZSTD_LEGACY_SUPPORT=5)
+    set(ZSTD_LEGACY_LEVEL 5 CACHE STRING "")
+    add_definitions(-DZSTD_LEGACY_SUPPORT=${ZSTD_LEGACY_LEVEL})
 else ()
     message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
     add_definitions(-DZSTD_LEGACY_SUPPORT=0)