Hi,

I tried installing boost process on my Solaris 10 Sparc machine. On compiling it using gcc-6.3.0, I ran into a static assert failure at compile time at  https://github.com/boostorg/process/blob/boost-1.68.0/include/boost/process/detail/posix/is_running.hpp#L20. In order to fix that, I changed 
static_assert(!WIFEXITED(still_active) && !WIFSIGNALED(still_active), "Internal Error");
to static_assert(!WIFEXITED(still_active), "Internal Error");

There is some discussion about this at https://www.openwall.com/lists/musl/2018/08/10/1

Now,  the following code works well onCentOS 7(where no change was made to Boost process), but fails on Solaris 10 (where I made the above change as a workaround). On Solaris 10, the return code is 127 and stdout and stderr are empty.

#include <iostream>
#include <thread>
#include <boost/process.hpp>
#include <boost/asio.hpp>

namespace bp = boost::process ;
int main(int argc, char** argv)
{
    std::future<std::string> dataOut;
    std::future<std::string> dataErr;

    std::string command = "ls";
    boost::asio::io_service ios;
    bp::child c(command, bp::std_out > dataOut, bp::std_err > dataErr, ios);
    ios.run();
    c.wait();
    int result = c.exit_code();
    std::string stdOut = dataOut.get();
    std::string stdErr = dataErr.get();
    std::cout << "Exit Code " << result  << std::endl;
    std::cout << "stdOut " << stdOut  << std::endl;
    std::cout << "stdErr " << stdErr  << std::endl;
    return 0;
}

Output on CentOS 7

Exit Code 0
stdOut a.out
main.cpp
Process.cpp
Process.h
simple.cpp

stdErr

Output on Solaris 10

Exit Code 127
stdOut 
stdErr
1. Has my workaround to install Boost process on Solaris 10 broken it? 
2. Is Boost-1.68.0 not supported on Solaris? 
3. Is there a way I can get Boost Process to work on Solaris 10 in async mode? 


--
Regards,
Sanket