LinuxQuestions.org - file-4.10 make error

LFS V6,
6.38. File-4.10
Code:
root:/sources/file-4.10# make

make  all-recursive

make[1]: Entering directory `/sources/file-4.10'

Making all in src

make[2]: Entering directory `/sources/file-4.10/src'

if /bin/sh ../libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I..  -DMAGIC='"/usr/share/file/magic"'  -g -O2 -MT compress.lo -MD -MP -MF ".deps/compress.Tpo" \

  -c -o compress.lo `test -f 'compress.c' || echo './'`compress.c; \

then mv -f ".deps/compress.Tpo" ".deps/compress.Plo"; \

else rm -f ".deps/compress.Tpo"; exit 1; \

fi

gcc -DHAVE_CONFIG_H -I. -I. -I.. -DMAGIC=\"/usr/share/file/magic\" -g -O2 -MT compress.lo -MD -MP -MF .deps/compress.Tpo -c compress.c  -fPIC -DPIC -o .libs/compress.o

compress.c:54:18: zlib.h: No such file or directory

compress.c: In function `uncompressgzipped':

compress.c:256: error: `z_stream' undeclared (first use in this function)

compress.c:256: error: (Each undeclared identifier is reported only once

compress.c:256: error: for each function it appears in.)

compress.c:256: error: parse error before "z"

compress.c:284: error: `z' undeclared (first use in this function)

compress.c:284: error: `Bytef' undeclared (first use in this function)

compress.c:284: error: parse error before ')' token

compress.c:289: error: `Z_NULL' undeclared (first use in this function)

compress.c:294: error: `Z_OK' undeclared (first use in this function)

compress.c:299: error: `Z_SYNC_FLUSH' undeclared (first use in this function)

compress.c:300: error: `Z_STREAM_END' undeclared (first use in this function)

make[2]: *** [compress.lo] Error 1

make[2]: Leaving directory `/sources/file-4.10/src'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/sources/file-4.10'

make: *** [all] Error 2
But there IS zlib.h in the /usr/include/

has somebody met this problem?