Поиск библиотек для расчётов с высокой точностью

MyxCMake/find/FindMPFRCppThirdparty.cmake

@@ -1,7 +1,7 @@
 # Подключение внешних проектов
 include(ExternalProject)
 
-if(MPFR_FOUND)
+if(MPFR_FOUND AND IS_DIRECTORY ${CMAKE_SOURCE_DIR}/thirdparty/mpreal)
   ExternalProject_Add(
     mpfrcpp
     SOURCE_DIR ${CMAKE_SOURCE_DIR}/thirdparty/mpreal
@@ -9,7 +9,8 @@ if(MPFR_FOUND)
     CONFIGURE_COMMAND true
     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)
+endif()
+

MyxCMake/functions/MyxCMakeHighPrecisionMath.cmake

@@ -1,3 +1,4 @@
+function myx_cmake_enable_high_precision_math()
   find_package(Quadmath)
   if(QUADMATH_FOUND)
     add_definitions(-DHAVE_QUADMATH=1)
@@ -9,3 +10,4 @@ else()
       message(FATAL_ERROR "Nor Quadmath, nor MPFR found.")
     endif()
   endif()
+endfunction()