[8u] RFR: 8035495: Improvements in autoconf integration AND 8035825

[Kevin Walls]

Hi,

I'd like to request review of this backport from 9 to 8u:

8035495: Improvements in autoconf integration
JBS: https://bugs.openjdk.java.net/browse/JDK-8035495

9 changeset:
URL:   http://hg.openjdk.java.net/jdk9/dev/rev/6e29cd9ac2b4
User:  ihse
Date:  2014-02-24 12:31:07 +0000

9 review thread: http://mail.openjdk.java.net/pipermail/build-dev/2014-February/011963.html


This mostly imports to 8u, but requires some manual editing as one chunk in each of common/autoconf/autogen.sh,
common/autoconf/basics.m4, and common/autoconf/configure didn't import, plus regenerating generated-configure.sh.


There was a follow-on bug which I'll apply at the same time, which was:

8035825: Warn instead of fail when calling the configure wrapper directly
JBS: https://bugs.openjdk.java.net/browse/JDK-8035825

9 changeset:
URL:   http://hg.openjdk.java.net/jdk9/dev/rev/e7872d8abd12
User:  ihse
Date:  2014-02-27 08:20:50 +0000

9 review: http://mail.openjdk.java.net/pipermail/build-dev/2014-February/011988.html

This required some manual editing just for the change at the start of common/autoconf/configure.


8u webrev with them both applied:  http://cr.openjdk.java.net/~kevinw/8035495/webrev.00/

(8035496 is committed in there, 8035825 is not)


Many thanks!
Kevin