[Bug bootstrap/63714] AIX (5.3.7, xlC v11) fails to bootstrap for gcc 4.9.2, 4.8.3 and 4.7.4

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63714

--- Comment #10 from David Edelsohn <dje at gcc dot gnu.org> ---
I had not realized that Bash-isms had crept into Autoconf, but I am not
surprised.  Using KSH to bootstrap is extremely slow and causes other problems.

Both Bull Freeware for AIX and Perzl websites have RPMs for recent releases of
GCC, so I do not understand the "ancient" comment.

The GCC build process really wants any non-GCC bootstrap compiler to be called
"cc".  If you want to add more options, you likely need to create a script in
your $HOME/bin directory in your path and insert the option there.