http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46597
--- Comment #1 from Jay <jay.krell at cornell dot edu> 2010-12-28 13:50:06 UTC --- I put #define ENABLE_CHECKING_GCC_VERSION ((GCC_VERSION > 3003) || (!defined(__cplusplus) && (GCC_VERSION > 2007))) in include/ansidecl.h after #define GCC_VERSION and I && this with the #if FOO_CHECKING in rtl.h, tree.h, ira-int.h. Alternatively, reject g++ < 3.4 entirely, or if enable-checking. Or, well, I'm using -disable-bootstrap, and probably checking is never enabled in the first phase anyway, so this all would just work if I didn't use that. The patch is ok, but it might never make a difference if I didn't -disable-bootstrap. But I really really really like -disable-bootstrap, given how little I build, which is still a very useful amount, it saves a ton (just libbackend.a and a small frontend, no libraries, and I patched out gmp/mpfr/mpc dependencies, so overall build is short even on slower machines (we run a range of machines..)).
