The following:

1. created test C-dll in Cygwin (gcc -shared -o hello.dll hello.o)
2. used "implib.exe /s" to create .lib file
3. linked with D program "dmd test.d hello.lib"

Compiles, program starts but begins to hang as soon as it calls the C function (which itself is never executed, no "hello world" is printed).

Windows 7, 32bit.

In the past it worked flawlessly. Windows 7 had a few updates recently and I updated Cygwin (and of course dmd). I noticed this behavior in a customized C-library and wanted to rule out it's the library (which works perfectly well on Linux). So I wrote a simple "hello world" dll, to see what happens. Exact same behavior.

Any ideas? Thanks!

On Tuesday, 17 June 2014 at 09:51:06 UTC, Chris wrote:
> The following:
>
> 1. created test C-dll in Cygwin (gcc -shared -o hello.dll hello.o)
> 2. used "implib.exe /s" to create .lib file
> 3. linked with D program "dmd test.d hello.lib"
>
> Compiles, program starts but begins to hang as soon as it calls the C function (which itself is never executed, no "hello world" is printed).
>
> Windows 7, 32bit.
>
> In the past it worked flawlessly. Windows 7 had a few updates recently and I updated Cygwin (and of course dmd). I noticed this behavior in a customized C-library and wanted to rule out it's the library (which works perfectly well on Linux). So I wrote a simple "hello world" dll, to see what happens. Exact same behavior.
>
> Any ideas? Thanks!

I tried MinGW and it works now, plus I don't need the cygwin1.dll anymore.