configure: Provide the original toplevel configure arguments (including $0) to...
* configure: Provide the original toplevel configure arguments
(including $0) to subprocesses in the environment rather than
through gcc/configargs.h.
gcc:
* configure.in: Take toplevel configure arguments from the
environment to create configargs.h and substitute
gcc_config_arguments, taking account of any existing configargs.h
if reconfiguring.
* configure: Regenerate.
* gccbug.in: Include toplevel configure arguments in gccbug.
From-SVN: r37423