c preprocessor.

[Neil Graham]

I noticed today that my xo (newly 703) has cpp which while modest in size 
seems to launch /usr/libexec/gcc/i386-redhat-linux/4.1.2/cc1 which weighs in 
at 5.1Meg

Anybody know what this is used for? would either TCC or mcpp be up to the same 
task?

This work http://www.gnome.org/~lcolitti/gnome-startup/analysis/ mentions that 
cpp is used by xrdb.  If it's a similar case on the XO then an improvement in 
boot time and space could be had.

My line of thinking is that if it's going to go to the trouble of being half 
installed maybe the rest of might as well be there.  If not, can it be 
eliminated.  pros and cons in either direction really.  If not gcc then tcc 
is certainly worth a look,  100k for a c compiler is fairly good bang for 
your byte.  http://fabrice.bellard.free.fr/tcc/