@ -334,11 +334,13 @@ There are three packages you want to get hold of: zlib, jpeg and pthreads.
The latter is not strictly necessary, but when you put something like this
into your source:
```
#define MUTEX(s)
struct {
int something;
MUTEX(latex);
}
Microsoft's C++ compiler doesn't do it. It complains that this is an error.
This, however, is how I implemented mutexes in case you don't need pthreads,