diff --git a/contrib/db/libmdbx/CMakeLists.txt b/contrib/db/libmdbx/CMakeLists.txt
new file mode 100644
index 00000000..b44b8002
--- /dev/null
+++ b/contrib/db/libmdbx/CMakeLists.txt
@@ -0,0 +1,20 @@
+
+set (mdbx_sources src/mdbx.c src/osal.c)
+
+include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
+
+if(NOT MSVC)
+  # set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-field-initializers -Wno-missing-braces -Wno-aggregate-return")
+endif()
+
+if(FREEBSD)
+  # add_definitions(-DMDB_DSYNC=O_SYNC)
+endif()
+
+add_library(mdbx  ${mdbx_sources})
+
+target_link_libraries(mdbx PRIVATE ${CMAKE_THREAD_LIBS_INIT})
+
+if(WIN32)
+  target_link_libraries(mdbx ntdll)
+endif()