[Bug libffi/65726] [5.0 regression] libffi fails to build when not bootstrapping: configure: error: C++ preprocessor "/lib/cpp" fails sanity check

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65726

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |WAITING

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Works fine for me but I am configuring in the toplevel for building libffi and
then do

make stage1-bubble
make all-target-libffi

I suppose building a target library with non-GCC might not be supported at all,
so in a tree configured not to bootstrap do

make all-target-libffi