Thanks xf2_org, I'm now up to gcc 4.3.3

gcc -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.3-5ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-targets=all --with-tune=generic --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4)

but now I get

 make
make  all-recursive
make[1]: Entering directory `/home/spoddy/cpuminer-1.0'
Making all in compat
make[2]: Entering directory `/home/spoddy/cpuminer-1.0/compat'
Making all in jansson
make[3]: Entering directory `/home/spoddy/cpuminer-1.0/compat/jansson'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/home/spoddy/cpuminer-1.0/compat/jansson'
make[3]: Entering directory `/home/spoddy/cpuminer-1.0/compat'
make[3]: Nothing to be done for `all-am'.
make[3]: Leaving directory `/home/spoddy/cpuminer-1.0/compat'
make[2]: Leaving directory `/home/spoddy/cpuminer-1.0/compat'
make[2]: Entering directory `/home/spoddy/cpuminer-1.0'
gcc  -O3 -Wall -msse2 -pthread  -o minerd cpu-miner.o util.o sha256_generic.o sha256_4way.o sha256_via.o sha256_cryptopp.o sha256_sse2_amd64.o -lcurl -Wl,-Bsymbolic-functions -lgssapi_krb5 compat/jansson/libjansson.a -lpthread  
cpu-miner.o: In function `miner_thread':
cpu-miner.c:(.text+0xb2e): undefined reference to `ScanHash_4WaySSE2'
collect2: ld returned 1 exit status
make[2]: *** [minerd] Error 1
make[2]: Leaving directory `/home/spoddy/cpuminer-1.0'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/spoddy/cpuminer-1.0'
make: *** [all] Error 2

Is this still a gcc version issue? And what version have others managed to compile on?

Thanks

Configure runs ok, but I'm getting a make error, .

sha256_4way.c:51: sorry, unimplemented: inlining failed in call to ‘ROTR’: function body not available
sha256_4way.c:458: sorry, unimplemented: called from here
sha256_4way.c:51: sorry, unimplemented: inlining failed in call to ‘ROTR’: function body not available
sha256_4way.c:458: sorry, unimplemented: called from here
sha256_4way.c:51: sorry, unimplemented: inlining failed in call to ‘ROTR’: function body not available
sha256_4way.c:458: sorry, unimplemented: called from here
make[1]: *** [sha256_4way.o] Error 1
make[1]: Leaving directory `/home/spoddy/cpuminer-1.0'
make: *** [install-recursive] Error 1
spoddy@bob:~/cpuminer-1.0$ cd ../bitcoin-0.3.21/

I'm a *nix newbie so any help would be appreciated.