try to fix MMSVC R error

microsoft · Sep 19, 2023 · d114549 · d114549
1 parent 0df0d7c
commit d114549
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -378,6 +378,13 @@ if(MSVC)
         CMAKE_CXX_FLAGS_RELWITHDEBINFO
     )
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /MP")
+    if(__BUILD_FOR_R)
+        # MSVC does not like this commit:
+        # https://github.com/wch/r-source/commit/fb52ac1a610571fcb8ac92d886b9fefcffaa7d48
+        # 
+        # and raises "error C3646: 'private_data_c': unknown override specifier"
+        add_definitions(-DR_LEGACY_RCOMPLEX)
+    endif()
     if(USE_DEBUG)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Od")
     else()