[Bug libstdc++/40974] cannot build gcc-4.4.1: fenv_t has not been declared

["paolo dot carlini at oracle dot com" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #4 from paolo dot carlini at oracle dot com  2009-08-07 08:22 -------
Nice that we have a workaround, still, the problem should not happen anyway: in
normal builds on x86_64-linux, no fenv.h is generated during the build and the
one provided by the underlying libc is of course fine. For some reason, for the
build of the PCHs the wrong one is picked. Still, a cross with host == target
seems very unusual to me, and it's the first time I hear of cross-lfs, it may
well be possible that the build system is not completely ready for such kind of
setup. Or it requires special configuration options. I'm adding people more
knowledgeable than me of configure issues in CC (maybe my friend Paolo, in
particular, can help picking the best person?!?)


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Ralf dot Wildenhues at gmx
                   |                            |dot de, bonzini at gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40974