Re: [Iaxclient-devel] Compiling iaxclient with VC++ as a windows dll

[Steve K. <st...@st...>]

On Sep 7, 2004, at 10:01 PM, Alex Epshteyn wrote:

> I am new to this list and trying to get up to speed.
>
> It appears that the project uses gcc (MinGV and Cygwin) to build the
> library, compiling library's wrapper wiax.dll (in diax project) is 
> also done
> with gcc.
> I have seen a few questions about compiling with VC++, but not too many
> answers, and it is not obvious what has changed since these posts.
>
> Are the Microsoft VC++ project files out of date?

Yes.

>  I would like to build a
> dll using VC++, and   wonder if that would be a relatively major 
> effort?

Probably not.

> Can
> the library be compiled with VC++ without any patches?

No; there's a couple of gcc-specific features that are used in the 
library.  I went through and cleaned most of these up, and AFAIK the 
only issue left is that we use a zero-length array as the last member 
of a structure; in gcc, this refers to the memory _after_ the end of 
the structure, and was a neat hack that Mark did in libiax2.

Unfortunately, nobody has come up with a similar construction that _is_ 
portable to compilers which don't support this (simple) extension.

A proper fix for this would be something which is equally efficient, 
and portable, and would be accepted back into digium's libiax2 
repository.

I don't use VC++ at all -- I don't really use Windows that much, but 
when I do, I use gcc there.   Since my use of iaxclient is for a 
portable project, it's just a lot easier to maintain the single 
Makefile, and use the same toolchain on every platform.


-SteveK