Problem:
You want to compile a C++ executable that uses zlib, but you see an error message like
/usr/bin/ld: cannot find -lzlib collect2: error: ld returned 1 exit status
Solution:
Use -lz instead of -lzlib. The zlib library is named libz.so, not libzlib.so!
Example:
g++ -o ztest zpipe.c -lz