zlib, harsh compiler warnings and configure test

Question

I\'m trying to compile zlib from the command line, and I\'m getting this message when using -Wall -Wextra -Wconversion (full cross-compile script is below):

Answer 1

I had the exact same problem on a newly built machine, and I found the cause was that I didn't actually have the appropriate GNU C compilers installed (reference). Therefore it's complaining that the compiler is too harsh simply because there is no compiler.

Try running:

sudo apt-get install build-essential

and then try running your ./configure again.