kou commented on code in PR #13346: URL: https://github.com/apache/arrow/pull/13346#discussion_r892961162
########## cpp/cmake_modules/ThirdpartyToolchain.cmake: ########## @@ -3657,8 +3657,22 @@ macro(build_grpc) # Yuck, see https://stackoverflow.com/a/45433229/776560 string(REPLACE ";" "|" GRPC_PREFIX_PATH_ALT_SEP "${GRPC_CMAKE_PREFIX}") + if(NOT MSVC) + # Negate warnings that gRPC cannot build under + # See https://github.com/grpc/grpc/issues/29417 + set(GRPC_C_FLAGS + "${EP_C_FLAGS} -Wno-attributes -Wno-format-security -Wno-unknown-warning-option") + set(GRPC_CXX_FLAGS + "${EP_CXX_FLAGS} -Wno-attributes -Wno-format-security -Wno-unknown-warning-option" + ) + endif() Review Comment: We need to initialize `GRPC_C*_FLAGS` for MSVC. e.g.: ```cmake set(GRPC_C_FLAGS "${EP_C_FLAGS}") set(GRPC_CXX_FLAGS "${EP_CXX_FLAGS}") if(NOT MSVC) set(GRPC_C_FLAGS "${GRPC_C_FLAGS} ...") set(GRPC_CXX_FLAGS "${GRPC_CXX_FLAGS} ...") endif() ``` Or ```cmake set(GRPC_CMAKE_ARGS ...) if(NOT MSVC) set(GRPC_C_FLAGS "${EP_C_FLAGS} ...") set(GRPC_CXX_FLAGS "${EP_CXX_FLAGS} ...") list(APPEND GRPC_CMAKE_ARGS "-DCMAKE_C_FLAGS=${GRPC_C_FLAGS}" ...) endif() ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
