SSE, GCC, and other BMK options

How do I enable these weird/unsupported things? Every time I try adding -O3, -march anything, or any of the other stuff I have found references to, BMK just fails silently.

Does BMK's compiler even support those options?

If you are talking about options for GCC or the linker, there are environmental variables for that. BMK_CC_OPTS and BMK_LD_OPTS.

Where is this stuff documented?

http://www.google.com/search?hl=en&q=BMK_CC_OPTS

http://www.google.com/search?hl=en&q=BMK_LD_OPTS

I don't know if it is. I just noted it when studying BMK sources (for pre-processing).