Trying to install eet from source for Enlightenment E17:
$ ./configure --prefix=/something/silly


checking zlib.h usability... no
checking zlib.h presence... no
checking for zlib.h... no
configure: error: "Cannot find zlib.h. Make sure your CFLAGS environment variable contains include lines for the location of this file"
And at this point it whithers away.

Gather that CFLAGS has something to do with the computer's basic specifications (AMD64 dual core; 4GB ram; Asus M-board). zlib is compression library.

So I assume I should try:

$ export CFLAGS=something
If so what's the something? Or is it something else altogether? At the moment CFLAGS is empty. zlib.h is present in several locations.