Embedding Julia in C++ on CentOS 7

Dockerfile

FROM centos:7

RUN yum install -y gcc gcc-c++ make

RUN curl -sL "https://julialang-s3.julialang.org/bin/linux/x64/1.5/julia-1.5.3-linux-x86_64.tar.gz" | tar xzf - -C /usr/local --strip-components=1

COPY embed_example.cpp Makefile /root/

WORKDIR "/root"

embed_example.cpp

#include <julia.h>
#include <string>

int main(int argc, char *argv[])
{
    std::string teststr = "abc";
    /* required: setup the Julia context */
    jl_init();
    jl_value_t* ans = jl_eval_string("println(sqrt(2.0))");
    jl_atexit_hook(0);
    return 0;
}

Makefile

JL_SHARE  = $(shell julia -E 'joinpath(Sys.BINDIR, Base.DATAROOTDIR, "julia")')
LIBSTDCXX = $(shell julia -E 'joinpath(dirname(Sys.BINDIR), "lib", "julia", "libstdc++.so.6")')
LIBGCC_S  = $(shell julia -E 'joinpath(dirname(Sys.BINDIR), "lib", "julia", "libgcc_s.so.1")')
CFLAGS   += $(shell $(JL_SHARE)/julia-config.jl --cflags)
CXXFLAGS += $(shell $(JL_SHARE)/julia-config.jl --cflags)
LDFLAGS  += $(shell $(JL_SHARE)/julia-config.jl --ldflags)
LDLIBS   += $(shell $(JL_SHARE)/julia-config.jl --ldlibs) -nodefaultlibs $(LIBSTDCXX) -lc $(LIBGCC_S)

all: embed_example