configure.{in -> ac} rename (commit 35eafcc71b) broke in-tree binutils building of gcc

[Jim Wilson]

On Tue, Jul 14, 2015 at 10:08 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> Combined tree is useful when the latest binutils is needed by GCC.

If you build and install binutils using the same --prefix as used for
gcc, then gcc will automatically find that binutils and use it.  You
don't need combined trees to make this work.

If you do still like combined trees, then I'd suggest putting binutils
and gcc into the same dir, instead of placing binutils into gcc, and
then add a simple Makefile that will configure, build and install
binutils and then likewise for gcc.

Jim