Commit: Sync top level configure and makefiles

[Tom Tromey]

>>>>> "Tom" == Tom de Vries <tdevries@suse.de> writes:

Tom> This broke the gdb build for me on f39.  I only have guile 3.0
Tom> installed, which is autodetected by the gdb build.

Sorry, I was under the impression that gdb's configure didn't look at
$GUILE.

Tom> But while double-checking guild in gdb/configure, it executes
Tom> /usr/bin/guild-3.0, which uses GUILE as set by the top-level makefile,
Tom> in other words, guile, which is not installed.

... I didn't realize this was going on.  It seems very weird to me that
a versioned script like this is happy to accept any old interpreter and
not just hard-code the corresponding one.

Tom> I'd like to know if this is a user error or not.

No, I will try to fix it somehow.  Maybe backing out my change is the
way to go.

Tom