diff --git a/FindMPFRCppThirdparty.cmake b/FindMPFRCppThirdparty.cmake
new file mode 100644
index 0000000..0b14e38
--- /dev/null
+++ b/FindMPFRCppThirdparty.cmake
@@ -0,0 +1,16 @@
+# Подключение внешних проектов
+include(ExternalProject)
+
+if(MPFR_FOUND)
+  ExternalProject_Add(
+    mpfrcpp
+    SOURCE_DIR ${CMAKE_SOURCE_DIR}/thirdparty/mpreal
+    INSTALL_DIR ${CMAKE_BINARY_DIR}/include
+    DOWNLOAD_COMMAND ""
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND true
+    INSTALL_COMMAND ${CMAKE_COMMAND} -E copy <SOURCE_DIR>/mpreal.h <INSTALL_DIR>)
+endif()
+
+set(MPFRCPP_PREFIX  ${CMAKE_BINARY_DIR} CACHE FILEPATH "" FORCE)
+set(MPFRCPP_INCLUDE_DIRS ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR} CACHE PATH "" FORCE)