Just since gcc 3.4 was released a short while ago. The 3.2 version is the one distributed with Fedora Core 1.
This is the configure line used for both compiles: ./configure --without-pspell --without-aspell --disable-debug --with-frontend="xforms" --enable-maintainer-mode Gcc 3.2: real 14m0.550s ls -l src/lyx-xforms 4553521 src/lyx-xforms size src/lyx-xforms text data bss dec hex filename 3423788 18804 56024 3498616 356278 src/lyx-xforms Gcc 3.4: (compiled with a profiled bootstrap) real 11m16.074s ls -l src/lyx-xforms 5767867 src/lyx-xforms size src/lyx-xforms text data bss dec hex filename 3422419 20008 55704 3498131 356093 src/lyx-xforms -- Lgb