or download this
# gcc -v
Using built-in specs.
...
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,
+objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libex
+ecdir=/usr/lib --without-included-gettext --enable-threads=posix --en
+able-nls --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix
+=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
+--enable-mpfr --enable-checking=release --build=x86_64-linux-gnu --ho
+st=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.2.4 (Debian 4.2.4-3)