mkfs.jffs2.c not compiling for arm

[Saravanan Chanemouganandam]

Hello,

I am a newbie to use MTD tools. I have downloaded the latest version of the 
mtd tools and when I try to cross compile mtd-utils-1.0.0 for the Xscale 
platform, I am getting the following make error. 

sara:/home/sara/mtd-utils-1.0.0#make 
CROSS=/scratchbox/compilers/arm-gcc-3.3.4-glibc-2.3.2/bin/arm-linux-
....
/scratchbox/compilers/arm-gcc-3.3.4-glibc-2.3.2/bin/arm-linux-gcc -I./include 
-O2 -Wall -g -c -o mkfs.jffs2.o mkfs.jffs2.c -g -Wp,-MD,.mkfs.jffs2.c.dep
mkfs.jffs2.c:68:18: zlib.h : No such file or directory
make: *** [mkfs.jffs2.o] Error 1
rm ftl_check.o mkfs.jffs.o flash_erase.o ftl_format.o nanddump.o 
doc_loadbios.o

The host development machine has already installed with supporting Zlib 
libraries but still it couldn't find the file. 

Can anyone precise me, is there any missing build options ?

thanks
Sara