Hi Dennis, since I'm using a sun compiled version of gcc to build the new version of gcc, I believe that the sun version of gcc is calling the GNU assembler version 2.15. I see that I'm quite a few releases behind the current version, I'll try to build and install the latest version of GNU binutils. -bash-3.2$ gcc -v Reading specs from /usr/sfw/lib/gcc/i386-pc-solaris2.10/3.4.3/specs Configured with: /builds/sfw10-gate/usr/src/cmd/gcc/gcc-3.4.3/configure --prefix=/usr/sfw --with-as=/usr/sfw/bin/gas --with-gnu-as --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++ --enable-shared Thread model: posix gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath) -bash-3.2$ /usr/sfw/bin/gas -V GNU assembler version 2.15 (i386-pc-solaris2.10) using BFD version 2.15