[CMake] Do not explicit set CPM_SOURCE_CACHE

5 months ago · 9ea321e29a
1 changed files with 3 additions and 1 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -132,7 +132,9 @@ if (CXX_CLANG_CL)
    endif()
 endif()

-set(CPM_SOURCE_CACHE ${CMAKE_SOURCE_DIR}/.cache/cpm)
+if(NOT DEFINED CPM_SOURCE_CACHE)
+    set(CPM_SOURCE_CACHE "${CMAKE_SOURCE_DIR}/.cache/cpm")
+endif()

 include(DownloadExternals)
 include(CMakeDependentOption)