Error compiling git

Hello all!

I am trying to compile git. The catch is that my zlib is installed in non-standard directory, namely: /tmp/dont.delete/fakeroot

Here are my environment varialbes: LDFLAGS=-L/tmp/dont.delete/fakeroot/lib LD_RUN_PATH="/tmp/dont.delete/fakeroot/lib CC="ccache cc -o3"

but after running make, the compilation stops ate linking with this error:
<snip>
     AR xdiff/lib.a
     LINK git-convert-objects
/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/bin/ld: 
skipping incompatible /usr/lib/libz.so when searching for -lz
/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/bin/ld: 
skipping incompatible /usr/lib/libz.a when searching for -lz
/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/bin/ld: 
cannot find -lz
collect2: ld returned 1 exit status
make: *** [git-convert-objects] Error 1
</snip>
Which to my understating means that it is not even trying to find zlib 
in /tmp/dont.delete/fakeroot

My way of compiling is: make configure ./configure --cache-file=config.cache --prefix=/tmp/dont.delete/fakeroot make

In configure.log I do get LDFLAGS='-L/tmp/dont.delete/fakeroot/lib -L/tmp/dont.delete/fakeroot/lib64 -L/usr/stud/srivasta/lib'

This zlib is working fine when I compile other stuff which needs zlib.

Any idea if is a configure problem of make

Anupam