Re: Shared Libs

[ekl%beastie@SDF.LONESTAR.ORG]

>Have you thought about global variables *in the application* that must be
>accessed by functions *in the library*?  "errno" is an example for this.
>
>All accesses to such variables must be via pointers, as two different programs
>will contain different instances of the same variable.

I think the easiest way to handle that is going to be to pass things like
errno through as an argument.  For example, open() might be something like:

#define open(file,type)	_dispatch(_libc_struct,_OPEN_FUNC,file,type,&errno)


So, the header file passes it so the C code doesn't change.  Hopefully,
there won't be too much like this.  We may need some sort of data table
scheme if we have to support more than 2 or 3 per call.


CYA,
Evan