This seems a very straightforward problem: you're specifying -stdlib=libc++ at compilation time, using clang, but you're not overriding the linker nor its options. Moreover, you're using HOST_* variables, which are normally used for cross-compilation. I doubt this is what you want given the context you're saying.
Here's what you should be doing: export CXX=clang++ export CXXFLAGS=-stdlib=libc++ export LDXX="clang++ -stdlib=libc++" # yep, I just realized that's a bug we have here to not properly support LDXXFLAGS, so you're going to have to use that ugly form instead. Also, if you really want the pure C part to be compiled using clang, you'd need to add export CC=clang but that's got quite nothing to do with using libc++, so it's not a good reason to try and hurt yourself there. On Mon, Jul 10, 2017 at 11:09 AM, <[email protected]> wrote: > > Hi, > > I'm trying to build gRPC v1.4.1 as following. I have all the required > third party libraries built (with Clang and libc++) and installed (besides > boringssl which is cloned inside third_party and built recursively). > > I'm running make as following: > > make HOST_CC=clang HOST_CXX="clang++ -stdlib=libc++ -std=c++11" CC=clang > CXX="clang++ -stdlib=libc++ -std=c++11" > > and I get an error during linkage of the protoc gRPC plugin: > > [HOSTLD] Linking /grpc-1.4.1/bins/opt/grpc_cpp_plugin > > /usr/bin/ld: /grpc-1.4.1/objs/opt/src/compiler/cpp_plugin.o: undefined > reference to symbol '_ZNSt3__18ios_base4initEPv' > > //usr/lib/x86_64-linux-gnu/libc++.so.1: error adding symbols: DSO missing > from command line > > collect2: error: ld returned 1 exit status > > make: *** [/grpc-1.4.1/bins/opt/grpc_cpp_plugin] Error 1 > > My constraint is that I really need to build with libc++. The whole thing > does work if I build with libstdc++ (given protobuf is built with libstdc++ > as well). > > I really need your help here, thank you! > > Alex > > -- > You received this message because you are subscribed to the Google Groups " > grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/grpc-io. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/grpc-io/d37d91eb-d75e-4d4b-b6b3-b55424705e30%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/d37d91eb-d75e-4d4b-b6b3-b55424705e30%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CAEvr0PE%2BSk5j%3DVkPqeSOHhxbS-v6O1fh61YgZjG_wSCksGRh-w%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
