format/ddf/ddf1_crc.c:19:18: error: zlib.h: No such file or directory format/ddf/ddf1_crc.c:19:18: error: zlib.h: No such file or directory format/ddf/ddf1_crc.c: In function ‘do_crc32’: format/ddf/ddf1_crc.c:35: warning: implicit declaration of function ‘crc32’ make[1]: *** [format/ddf/ddf1_crc.o] Error 1 make[1]: Leaving directory `/home/dephtu/Desktop/dmraid/1.0.0.rc13/lib' make: *** [lib] Error 2