[ros-dev] new build system: informal performance test

[Royce Mitchell III]

each test was run from a "mingw32-make clean" or "make clean" tree with 
KDBG=0 DBG=0

old build system build command:

mingw32-make
mingw32-make bootcd

21 minutes

new build system:

make bootcd

11 minutes

new build system:

make -j 5 bootcd

13 minutes

I built the old build system with two separate commands because last 
time I tried, you could do a "mingw32-make bootcd" from a clean tree. 
So, besides the other benefits outlined when we started this project, 
the new build system is cutting build time in half.

Now to just fix the remaining bug(s) ;)