Fix tests on all platforms

Try to link tests on Mac.


Fix inaccurate pad brim size


fix build on mac (attempt 2)


Fixes for support tree faults and race conditions in release mode.


Fix crashing test executable on gcc 4.9


fix warning on msvc

src/libslic3r/Config.cpp

@@ -271,8 +271,6 @@ ConfigOptionDef* ConfigDef::add_nullable(const t_config_option_key &opt_key, Con
 	return def;
 }
 
-std::string ConfigOptionDef::nocli = "~~~noCLI";
-
 std::ostream& ConfigDef::print_cli_help(std::ostream& out, bool show_defaults, std::function<bool(const ConfigOptionDef &)> filter) const
 {
     // prepare a function for wrapping text