Compile time filesystem access?

[Marco Leise]

> Aren't those configure scripts generate by some other tool :)

Maybe. I never digged that deep into build processes. After some time I  
got myself to write Makefiles, but that's about it. I see names like  
automake, m4, configure etc. pop up now and then and have no idea what  
role each plays. They just get the job done somehow and check which C  
standard library is used, what compiler and other useful traits to cover  
the differences between systems.