D2 port of Sociomantic CDGC available for early experiments

[Rainer Schuetze via Digitalmars-d-announce]

On 09.10.2014 10:18, Walter Bright wrote:
> On 10/8/2014 11:43 PM, Rainer Schuetze wrote:
>> Yes, but the problem is not to access command line arguments, but to
>> run code
>> before the GC initialization i.e. before _d_run_main is executed.
>>
>> If we can assume a C++ backend, using static initialization of a C++
>> global
>> could work:
>>
>>     static bool initGC = configureGC();
>>
>> because the C++ runtime runs configureGC before calling C main. I'd
>> rather like
>> to see a solution using D, though.
>
> Define a global variable in druntime in its own module:
>
>      __gshared int druntime_flags = 0;
>
> Then, in your app, override it:
>
>      __gshared int druntime_flags = values...;

That's similar to my approach to replace gc.config by a different module 
with the same module name when compiling the executable:

   dmd main.d my_gc_config.d

where my_gc_config.d contains "module gc.config;" and thus replaces the 
module in the library.

Martin is very much against this, one reason is that it does not work 
with druntime in a shared library.