[RFR]: Add alpha detection to platform.m4

[John Paul Adrian Glaubitz]

Hi!

On 08/16/2017 06:43 AM, David Holmes wrote:
> What are you proposing for Alpha and all these other platforms?

They work fine with the Zero port and we have been using Zero on
these Debian for several years now. For most architectures, just
adding the autoconf definitions is enough to get them to build
OpenJDK Zero.

Some additional minor patches are necessary sometimes. For example,
on Alpha we need to patch autoconf not to pass "-Dalpha" during
build but "-D_alpha_" as there is already a variable named
"alpha" in some of the sources which breaks the build.

> For any port supported by the OpenJDK there needs to be an active
> segment of the community that is prepared to be the "caretakers" of that port.

You're right. But since these platforms use only Zero, this point
doesn't apply.

Adrian

-- 
  .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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