first iceadtea cross-compile patch: disable sanity checks

[Andrew John Hughes]

2009/3/28 Robert Schuster <theBohemian at gmx.net>:
> Hi Matthew,
>
> Matthew Flaschen schrieb:
>> I definitely think it should be optional, as you suggest in a comment.
>> Otherwise, you're making things more difficult for someone building the
>> code for the first time (or building on a new system).
> Done.
>
> Please let me know if it is OK that way.
>
> There is one thing I would like to have but I don't know how to do it.
> Autoconf already checks whether one is cross-compiling:
>
> configure:3182: checking whether we are cross compiling
> configure:3184: result: yes
>
> In which variable is this result stored and when can I retrieve the
> value for sure?
>
> I want to implement the following algorithm in configure.ac:
>
> if (cross-compiling)
>  disable sanity checks by default
> else if (--disable-sanity-checks was given)
>  disable sanity checks
> else
>  do sanity check
>
> I only have the last part so far but the proposed automatism would be
> useful, since some of the sanity checks really can't be done when
> cross-compiling. Well, except if your host can run the target's binaries.
>
> Regards
> Robert
>
>

I see cross_compiling was adopted.  This is set when host is specifed:

http://www.gnu.org/software/autoconf/manual/autoconf.html#Manual-Configuration

Can we actually have --disable-sanity-checks rather than
--enable-experimental-openjdk-cross-compilation
too? :)

AC_MSG_CHECKING(whether to disable sanity checks)
AC_ARG_ENABLE([sanity-checks],
	      [AS_HELP_STRING([--disable-sanity-checks],
	      		      [Disable sanity checks run by the OpenJDK build which
require host==build])],
	      [disable_sanity_checks="${enableval}"],
[disable_sanity_checks="${cross_compiling}"])
AM_CONDITIONAL([DISABLE_SANITY_CHECKS], [test x$DISABLE_SANITY_CHECKS = xyes])
AC_MSG_RESULT(${disable_sanity_checks})

-- 
Andrew :-)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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