Building OpenJDK on Ubuntu 11.10

[Tim Ellison]

Is anyone else building OpenJDK 7 on Ubuntu 10.11?  I found I need a
couple of extra definitions to work around problems not seen on 10.4.

1) "This OS is not supported"

The Hotspot build checks that the Linux kernel version number is in a
known list.  As Ubuntu 10.11 has kernel 3.0.0 you either need to
bypass the version check (DISABLE_HOTSPOT_OS_VERSION_CHECK=ok), or add
3.0 to the supported versions, i.e.

diff -r 9b0ca45cd756 make/linux/Makefile
--- a/make/linux/Makefile	Tue Jun 28 10:57:38 2011 -0700
+++ b/make/linux/Makefile	Fri Oct 21 15:15:20 2011 +0100
@@ -230,7 +230,7 @@
 # Solaris 2.5.1, 2.6).
 # Disable this check by setting DISABLE_HOTSPOT_OS_VERSION_CHECK=ok.

-SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 2.7%
+SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 2.7% 3.0%
 OS_VERSION := $(shell uname -r)
 EMPTY_IF_NOT_SUPPORTED = $(filter $(SUPPORTED_OS_VERSION),$(OS_VERSION))


2) Can't find asound lib

To get jsoundalsa to link successfully I found I need to specify
"EXTRA_LIBS=/usr/lib/i386-linux-gnu/libasound.so"  to pick up
libasound.so (from pkg libasound2-dev) as it is no longer in /usr/lib.


Anyone else come across these?  Any interest to have OpenJDK build on
Ubuntu 10.11 straight out of the box?

Thoughts?
Tim