GDC for GCC 4.5.2

[Daniel Green]

GDC built against TDM-GCC 4.5.2.  Nothing new.

- Install TDM-GCC 4.5.2 32-bit SjLj.
- Extract GDC zip into installation folder.

https://bitbucket.org/goshawk/gdc/downloads/gcc-4.5.2-tdm-1-gdc-r510-20110407.zip

http://tdm-gcc.tdragon.net/download