make: *** [Makefile:29: src/alignment_cmdline.o] Error 1

[kdyoung100]

code in git colne ~~
cd cortex
bash install.sh

libs/seq_file/seq_file.h:17:10: fatal error: zlib.h: No such file or directory
#include <zlib.h>
^~~~~~~~
compilation terminated.
make: *** [Makefile:29: src/alignment_cmdline.o] Error 1
make: Leaving directory '/home/kdyoung/tools/cortex/scripts/analyse_variants/seq-align'

why problem? already sudo apt-get install libz-dev