compile failed (OrcRemoteTargetClient.h:722:26: error: could not convert)

[derofim]

Issue: OrcRemoteTargetClient.h:722:26: error: could not convert (see below)

Please update https://root.cern.ch/cling-build-instructions if need to switch branches.

Ubuntu 18.04 LTS 
gcc version 8.2.0 (Ubuntu 8.2.0-7ubuntu1)

Similar issue: #279

Possible patches:

• https://aur.archlinux.org/cgit/aur.git/tree/gcc-build-fix.patch?h=llvm50
• OrcRemoteTargetClient.h:696:26: error: could not convert EOSIO/eos#5136
• Failed to build with Fedora 28 GCC 8 wsmoses/Tapir-Meta#5

Build script:

#!/bin/bash

set +x
set -e

# see https://root.cern.ch/cling-build-instructions

# mkdir from some parent project dir!
mkdir -p ../cling-build
cd ../cling-build

git clone http://root.cern.ch/git/llvm.git src
cd src
git checkout cling-patches
cd tools
git clone http://root.cern.ch/git/cling.git
git clone http://root.cern.ch/git/clang.git
cd clang
git checkout cling-patches
cd ../../..

mkdir build
cd build

# add parallel build support
# https://stackoverflow.com/questions/601970/how-do-i-utilise-all-the-cores-for-nmake
set CL=/MP

cmake -DCMAKE_INSTALL_PREFIX=../release -DCMAKE_BUILD_TYPE=Release ../src
cmake --build . -- -j6

# no install
# cmake --build . --target install

# NOTE: if you get error
# /home/denis/workspace/cling-cmake/cling-build/src/include/llvm/ExecutionEngine/Orc/OrcRemoteTargetClient.h:722:26: error: could not convert ‘((llvm::orc::remote::OrcRemoteTargetClient<ChannelT>*)this)->callB<llvm::orc::remote::OrcRemoteTargetRPCAPI::ReadMem>(Src, Size)’ from ‘Expected<vector<unsigned char,allocator<unsigned char>>>’ to ‘Expected<vector<char,allocator<char>>>’
# return callB<ReadMem>(Src, Size);
# than apply patch (replace char with uint8_t) https://aur.archlinux.org/cgit/aur.git/tree/gcc-build-fix.patch?h=llvm50

[Axel-Naumann]

Could you do me a big favor and check whether http://root.cern.ch/gitweb?p=cling.git;a=commitdiff;h=2c92b57062e22c14c015c7bd3f9c7d9d3197defa fixes this?

[Axel-Naumann]

Confirmed fixed in #302 thus closing.