[wplug] what is optimized by -march in gcc?

[Juan Zuluaga]

I realized that many packages I compile by the
"./configure;make;make install" cycle use -march=i586
by default. 
But, lucky me, I do have a Pentium MMX 266 in my
machine :) . 
So, I am tempted to type ./configure
CFLAGS="-march=pentium-mmx". Would that make the
application foo run faster, or would that just make
gcc run faster?   
And, given that I have just 64Mb, would there be a
memory use penalty? 


	
		
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