Adding gdc to gcc

I posted the question on this list: http://www.listware.net/201011/gcc-gcc/25881-merging-gdc-gnu-d-compiler-into-gcc.html hopefully we can move forward with this.

[Issue 670] _argptr is char *

http://d.puremagic.com/issues/show_bug.cgi?id=670 Walter Bright changed: What|Removed |Added CC||bugzi...@digitalmars.com --- Comment #6

GDC2 Roadmap

I've noticed tremendous progress lately in getting GDC2 up to date. It's now only a few releases behind DMD and rapidly closing the gap. Excellent work, Iain! Once these last few merges are done, which of the following systems will GDC2 be almost immediately usable on, and which ones will still