[static builds] netplay connect doesn't work when the core switches

[andres-asm]

First and foremost consider this:

• Only RetroArch bugs should be filed here. Not core bugs or game bugs
• This is not a forum or a help section, this is strictly developer oriented

Description

1. netplay connect when the core is different than the currently loaded core
2. netplay connect with subsystems

Netplay connect doesn't work when the core is different than the currently loaded one. Most likely due to exit spawn not passing the --connect ip:port arguments

Expected behavior

It should work

Steps to reproduce the bug

1. Load a game in core A
2. Join a lobby that uses core B
3. Doesn't work!

Version/Commit

You can find this information under Information/System Information

• RetroArch: [version/commit]

Environment information

• OS: [The operating system you're running]
• Compiler: [In case you are running local builds]

[andres-asm]

https://github.com/libretro/RetroArch/issues/8840#issuecomment-495435307

[LibretroAdmin]

@Cthulhu-throwaway Is this still relevant?