Latest libiberty update - Intel CET?

[Simon Marchi]

Hi Nick,

Since commit 56b1e56d2c2fa ("Rebase libiberty source with latest changes from gcc."), I get
this when libiberty gets configured:

  checking for CET support... configure: error: Intel CET must be enabled on Intel CET enabled host

Is it expected?  I don't really know what that means, but hopefully we don't have to pass
--enable-cet to every build.

In any case, something's not right, because the GCC_CET_HOST_FLAGS macro is not defined in
the binutils-gdb repo.  So when I `autoreconf -vf` libiberty, the configure script does
not get re-generated correctly.

Simon