suggestions?

[Alfredo Braunstein]

On how to get rid of Systemcall here?

It seems hard to use gunzip without -c (decompress to sdout) and get the
temp files correctly.

Maybe using some script trick as Angus's?

string const unzipFile(string const & zipped_file)
{
        string const file = ChangeExtension(zipped_file, string());
        string  const tempfile = lyx::tempName(string(), file);
        // Run gunzip
        string const command = "gunzip -c " + zipped_file + " > " + tempfile;
        Systemcall one;
        one.startscript(Systemcall::Wait, command);
        // test that command was executed successfully (anon)
        // yes, please do. (Lgb)
        return tempfile;
}

Alfredo