fetch cxxopts workaround

1 year ago · 622763209d
parent 19b58bc043
commit 622763209d
1 changed files with 4 additions and 0 deletions
--- a/extern/CMakeLists.txt
+++ b/extern/CMakeLists.txt
@ -198,6 +198,10 @@ if(NOT OPENMW_USE_SYSTEM_CXXOPTS)
            SOURCE_DIR fetched/cxxopts
            )
    FetchContent_MakeAvailableExcludeFromAll(cxxopts)
+
+    ### here is what makes all include directories -isystem
+    get_target_property(CXXOPTS_IID cxxopts INTERFACE_INCLUDE_DIRECTORIES)
+    set_target_properties(cxxopts PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${CXXOPTS_IID}")
 endif()

 if (NOT OPENMW_USE_SYSTEM_SQLITE3)