[D-runtime] Arghhh, DLLs broken on Win32 *again*!

[Rainer Schuetze]

On 3/21/2012 6:29 PM, Walter Bright wrote:
> Nobody liked my .sh version of the win32 tests :-)

I guess that's because you are using your home-grown version of shell.exe.

I have made a few changes to the tests:

- static linking of DLLs work if you export the module info symbol (GDC 
seems to do this by default)
- dynamic linking, but still importing the d file, can sometimes work if 
you use a di file instead without further dependencies and without 
static constructor/destructor.

Here's a pull request to fix the building and running of the tests:

https://github.com/D-Programming-Language/dmd/pull/841

but

- you still need the digital mars shell
- you have to add implib.exe to the build server (I would not mind 
adding it together with coffimplib.exe to the dmd distrbution). The 
optlink /IMPLIB is too buggy to be used.
- you should change the paths at the top of runtests.sh


 > The documentation here:
 >
 > http://dlang.org/dll.html
 >
 > must work. The test cases, druntime, and the documentation must all be
 > in sync.


As said some times before: the current examples of sharing the GC 
between different DLLs are very limited, they don't support any other 
sharing (threads, files, C-heap) and do not support multi-threading. I 
would suggest to either nuke that part of the documentation or put a big 
warning to this effect at the top of the respective paragraph.

Rainer