I am having problems every time i whant to install some packages, in configure stuff it get me errors, like this:

checking for ANSI C header files... no
checking for sys/types.h... no
checking for sys/stat.h... no
checking for stdlib.h... no
checking for string.h... no
checking for memory.h... no
checking for strings.h... no
checking for inttypes.h... no
checking for stdint.h... no
checking for unistd.h... no
checking limits usability... no
checking limits presence... yes
configure: WARNING: limits: present but cannot be compiled
configure: WARNING: limits: check for missing prerequisite headers?
configure: WARNING: limits: proceeding with the preprocessor's result

checking sys/poll.h usability... no
checking sys/poll.h presence... yes
configure: WARNING: sys/poll.h: present but cannot be compiled
configure: WARNING: sys/poll.h: check for missing prerequisite headers?
configure: WARNING: sys/poll.h: proceeding with the preprocessor's result
checking for sys/poll.h... yes
checking for poll in -lpoll... no
checking for compress in -lz... no
configure: error: You must have zlib installed!

I thought it was that i missing the file kernel-headers so i download it, and install it. reboot my machine but still see the same error message, i check if i have zlib installed and yes i do, I even uninstall it and install it again, and still looking the same error, what that i'm missing? so i could download it.

There is a package called glibc-2.3.2-i486-1 in the /slackware/l dir . You'll need it to compile programs.

I have glibc already installed too, the error messages is because it's calling the ansi c headers library, and i have it too in /usr/include but no matter if i do ./configure --whit-extra-libs=/usr/include it just doesn't take it, and still give me errors, i can't configure anything, whit out those library that i already have, i even put in in my path and still say that i don't have it. Weird stuff.

it's me again, i want to tell to everyone that my problem whit configure it was the compiler gcc and gcc++, i have gcc 3.3.2 series, and they didn;t detect my ansi c headers files, even i'm having the kernel headers installed, so i decide to install gcc 3.3.1 just to try, and voila, gcc 3.3.1 detect all my ansi c files, and library's needed for configure option, what happen here?? is gcc 3.3.2 having an bug??? because i even try configure Whit inferior gcc version, and they work very fine, but gcc 3.3.2 doesn't. I will like to heard if someone have notice if this is an bug of gcc 3.3.2 series or not.