Problem installing clisp

brew install -v clisp

==> Installing clisp dependency: libsigsegv
Warning: Formula will not build with LLVM, using GCC
==> Downloading http://ftpmirror.gnu.org/libsigsegv/libsigsegv-2.10.tar.gz
File already downloaded in /Users/neodevelop/Library/Caches/Homebrew
/usr/bin/tar xf /Users/neodevelop/Library/Caches/Homebrew/libsigsegv-2.10.tar.gz
==> ./configure --disable-dependency-tracking --prefix=/usr/local/Cellar/libsigsegv/2.10 --enable-shared
./configure --disable-dependency-tracking --prefix=/usr/local/Cellar/libsigsegv/2.10 --enable-shared

Build Tools:
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... build-aux/install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking for gcc... /usr/bin/gcc-4.2
checking whether the C compiler works... no
configure: error: in `/private/tmp/homebrew-libsigsegv-2.10-dsE3/libsigsegv-2.10':
configure: error: C compiler cannot create executables
See `config.log' for more details
==> Exit Status: 77
http://github.com/mxcl/homebrew/blob/master/Library/Formula/libsigsegv.rb#L12
==> Environment
gcc-4.2: error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
HOMEBREW_VERSION: 0.8.1
HEAD: 6007c89dbfb8b2ff0568d3efc367a047744d0a0a
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
Hardware: quad-core 64-bit arrandale
OS X: 10.7.2
Kernel Architecture: x86_64
Ruby: 1.8.7-249
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 4.2.1
GCC-4.0: N/A
GCC-4.2: build 0
LLVM: build 2336
Clang: 3.0-211.12
MacPorts or Fink? false
X11 installed? true
==> Build Flags
CC: /usr/bin/gcc-4.2
CXX: /usr/bin/g++-4.2
LD: /usr/bin/llvm-gcc => /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
CFLAGS: -O3 -w -pipe   -march=core2 -msse4
CXXFLAGS: -O3 -w -pipe   -march=core2 -msse4
MAKEFLAGS: -j4

Error: Failed executing: ./configure --disable-dependency-tracking --prefix=/usr/local/Cellar/libsigsegv/2.10 --enable-shared
If `brew doctor' does not help diagnose the issue, please report the bug:
    https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue
We saved the configure log, please gist it if you report the issue:
    ~/Library/Logs/Homebrew/config.log