Compiling

[Ronny Hippler]

Hello,
	I am having a problem compiling several programs. I keep getting the 
error can't find expat, but I have it installed. pkg_info lists it and if I look in 
/usr/local/include there is an expat.h file what am I missing? I am trying to 
compile fontconfig 2.2.1, also while trying to compile  xmule 1.5.2 I get the 
error:

make: can not allocate memory 
	Error code 1

Any ideas what could be causing this? I have 500megs ram and plenty of swap.

TIA