Compiling Empire strategy game

[tiedeman]

This is a call to all strategy game fans:

I am trying to get the amazing game Empire to compile on OSX, but it keeps crapping out on me.
It currently supports numerous flavors of Unix, including FreeBSD which I naively hoped would be close enough to work, but it poops out halfway through the install on a specific file that relates to system architecture: arch.c.

I know virtually nothing about Unix, but I'm scrambling to learn as Empire is the end-all be-all of strategic warfare simulation bar none. Bringing this game to OSX would be a windfall for the platform as far as I'm concerned.

The source file is here: ftp://www.empire.cx/pub/empire/server/empire4.2.7.tar.gz

The homepage for Empire is: http://www.empire.cx

By the by, this code is for the game server. You can easily play along in the numerous ongoing games by installing one of the various clients...

 

[tiedeman]

Here are some specifics:

During the make process, this is run:
cc -c -I/Users/Public/emp4/include -DRel4 -DFBSD -ansi -pedantic arch.c
And this is returned:
arch.c: In function `lwpInitContext':
arch.c:194: request for member `_jb' in something not a structure or union
arch.c:195: request for member `_jb' in something not a structure or union
arch.c:196: request for member `_jb' in something not a structure or union

Arch.c is responsible for threads and accounts for different system types. When run under OSX, it calls the FreeBSD routine which is:

void lwpInitContext(newp, sp)
struct lwpProc *newp;
void *sp;
{
setjmp (newp->context);
newp->context->_jb[2] = (int)sp;
newp->context->_jb[3] = (int)sp;
newp->context->_jb[0] = (int)lwpEntryPoint;
}

So, I see where one of the problems is occuring, but I do not know enough C to fix it.

Any ideas out there?