diff --git a/3rdparty/CMakeLists.txt b/3rdparty/CMakeLists.txt
new file mode 100644
index 0000000..2fc97c9
--- /dev/null
+++ b/3rdparty/CMakeLists.txt
@@ -0,0 +1,6 @@
+include_directories("${PROJECT_SOURCE_DIR}/3rdparty ${PROJECT_SOURCE_DIR}")
+set(lib3rdparty_SRCS zmalloc.c)
+add_library(3rdparty STATIC ${lib3rdparty_SRCS})
+# add_library(r3 SHARED ${libr3_SRCS})
+# target_link_libraries(r3 cblas)
+# install(FILES ${libswiftnav_HEADERS} DESTINATION include/libswiftnav)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0960676..cd353f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,7 @@ set(LIBS ${LIBS} ${PCRE_LIBRARIES} ${Judy_LIBRARIES} r3)
 # set (CMAKE_CXX_FLAGS "-std=c++0x -arch x86_64 -stdlib=libc++ -g3 -Wall -O0")
 enable_testing()
 
+add_subdirectory(3rdparty)
 add_subdirectory(src)
 add_subdirectory(tests)
 # add_test(test_tree ${CMAKE_CURRENT_BINARY_DIR}/check_tree)