diff --git a/package/grpc/0001-CMakeLists.txt-fix-cross-compilation-with-gRPC_BUILD.patch b/package/grpc/0001-CMakeLists.txt-fix-cross-compilation-with-gRPC_BUILD.patch new file mode 100644 index 0000000000..553be8cb99 --- /dev/null +++ b/package/grpc/0001-CMakeLists.txt-fix-cross-compilation-with-gRPC_BUILD.patch @@ -0,0 +1,43 @@ +From 268815d74ea34856c686dce9e9c23106b51f2782 Mon Sep 17 00:00:00 2001 +From: Thomas De Schampheleire +Date: Tue, 2 Feb 2021 21:46:29 +0100 +Subject: [PATCH] CMakeLists.txt: fix cross-compilation with + gRPC_BUILD_GRPC_CPP_PLUGIN=OFF + +When cross-compiling gRPC, a native version of 'grpc_cpp_plugin' is searched +in the environment. For most use cases, a cross version of this file is not +needed. + +However, when cross-building with -DgRPC_BUILD_GRPC_CPP_PLUGIN=OFF, there +are some build errors, for example: + +make[3]: *** No rule to make target 'grpc_cpp_plugin', needed by 'gens/src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.cc'. Stop. + +This is because there is still a hard dependency on 'grpc_cpp_plugin' for +these targets, not taking into account the cross-compilation case. + +Fix by depending on the variable gRPC_CPP_PLUGIN, which is set correctly for +either cross or native case. + +Signed-off-by: Thomas De Schampheleire + +--- + CMakeLists.txt | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 6bdae22083..08aea609f7 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -317,7 +317,7 @@ function(protobuf_generate_grpc_cpp) + --plugin=protoc-gen-grpc=${_gRPC_CPP_PLUGIN} + ${_protobuf_include_path} + ${REL_FIL} +- DEPENDS ${ABS_FIL} ${_gRPC_PROTOBUF_PROTOC} grpc_cpp_plugin ++ DEPENDS ${ABS_FIL} ${_gRPC_PROTOBUF_PROTOC} ${_gRPC_CPP_PLUGIN} + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} + COMMENT "Running gRPC C++ protocol buffer compiler on ${FIL}" + VERBATIM) +-- +2.26.2 +