hg: build-infra/jdk8: Macosx build on 10.8 runnable on 10.7. Tweaked JOBS calculation. Added support for SKIP_BOOT_CYCLE=false to jprt.

[erik.joelsson at oracle.com]

Changeset: c09af2398e00
Author:    erikj
Date:      2013-02-20 12:45 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/c09af2398e00

Macosx build on 10.8 runnable on 10.7. Tweaked JOBS calculation. Added support for SKIP_BOOT_CYCLE=false to jprt.

! common/autoconf/build-performance.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! common/autoconf/toolchain.m4
! common/makefiles/Jprt.gmk