Compiling Chaiscript with i686-w64-mingw32-g++ fails - c++

Question

I am trying to compile a simple chaiscript example for windows from Linux using the i686-w64-mingw32-g++ compiler. I have already gotten it to work with g++, but when compiling my app using the command
i686-w64-mingw32-g++ ./main.cpp -pthread -L/lib/x86_64-linux-gnu/libdl.a -std=c++17
And here are the contents of main.cpp
#include "chaiscript/chaiscript.hpp"
#include "chaiscript/chaiscript_stdlib.hpp"
int main()
{
chaiscript::ChaiScript chai;
chai.eval(R"(puts("Hello"))");
}
This is the error it gives me
How do I fix this error so I can compile my code?
Edit:
I was able to get farther along by using x86_64-w64-mingw32-g++ instead of i686-w64-mingw32-g++, but now I am getting this error:
/usr/bin/x86_64-w64-mingw32-as: /tmp/ccE1ZcKe.o: too many sections (73147)
/tmp/ccwlaMBb.s: Assembler messages:
/tmp/ccwlaMBb.s: Fatal error: can't write 41 bytes to section .text of /tmp/ccE1ZcKe.o: 'file too big'
/usr/bin/x86_64-w64-mingw32-as: /tmp/ccE1ZcKe.o: too many sections (73147)
/tmp/ccwlaMBb.s: Fatal error: can't close /tmp/ccE1ZcKe.o: file too big

Answer 1

Here is the solution using cmake:
First make a toolchain file:
# the name of the target operating system
set(CMAKE_SYSTEM_NAME Windows)
# which compilers to use
set(CMAKE_C_COMPILER x86_64-w64-mingw32-g++)
set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
# adjust the default behavior of the find commands:
# search headers and libraries in the target environment
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
# search programs in the host environment
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
The next step is to make the actual CMakeLists.txt:
# set minimum cmake version
cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
# project name and language
project(HelloWorld LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
include(GNUInstallDirs)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
# define executable and its source file
add_executable(HelloWorld main.cpp)
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
add_definitions(-O3)
SET(CMAKE_CXX_FLAGS "-pthread -Wa,-mbig-obj -static -std=c++17")
target_link_libraries(HelloWorld PUBLIC "-L/lib/x86_64-linux-gnu/libdl.a")
endif()
after, run the following commands to build:
mkdir build
cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE=../toolchainfile.cmake
cmake --build .
And you should now have a working exe file for chaiscript

Answer 2

Looks like you need #include <mutex> first. Perhaps you will need others, too.