I can't install gmp

[Bianca De Souza]

I can't install gmp-4.3.1 library on a mac os x (Snow Leopard). Can someone help me out with this problem.
When I tried ./configure the following appears:

Beebees-MacBook-Air:gmp-4.3.1 Beebee$ ./configure
checking build system type... i386-apple-darwin10.2.0
checking host system type... i386-apple-darwin10.2.0
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking ABI=32
checking compiler gcc -m32 -O2 -pedantic -fomit-frame-pointer ... no
checking compiler gcc -O2 -pedantic -fomit-frame-pointer ... no
checking compiler icc -no-gcc ... no
checking whether cc is gcc... yes
checking compiler cc -m32 -O2 -pedantic -fomit-frame-pointer ... no
checking compiler cc -O2 -pedantic -fomit-frame-pointer ... no
configure: error: could not find a working compiler, see config.log for details

I have gcc installed because of Xcode and it is seems to be working fine.

I checked for the config.log and I don't understand what is wrong.  it shows the following:

It was created by GNU MP configure 4.3.1, which was
generated by GNU Autoconf 2.59.  Invocation command line was

  $ ./configure

## --------- ##
## Platform. ##
## --------- ##

hostname = Beebees-MacBook-Air.local
uname -m = i386
uname -r = 10.2.0
uname -s = Darwin
uname -v = Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009; root:xnu$

/usr/bin/uname -p = i386