RFR: 8320942: Only set openjdk-target when cross compiling linux-aarch64

Wed Nov 29 19:05:18 UTC 2023

On Wed, 29 Nov 2023 02:25:20 GMT, Mikael Vidstedt <mikael at openjdk.org> wrote:

> When building linux-aarch64 at Oracle using jib, --openjdk-target=aarch64-linux-gnu is always specified regardless of if building natively or cross compiling (on linux-x64). Among other things this has the (harmless) effect of tricking configure into thinking that it's cross compiling even for native builds:
> 
> checking whether we are cross compiling... yes
> 
> The reason is that the target value (aarch64-linux-gnu) doesn't match what config.guess returns (aarch64-unknown-linux-gnu). An explicit target is only needed when cross compiling and should not be specified for native builds.

Thank you for the reviews!

Since the question of what exactly constitutes cross compilation is orthogonal to this change I'll go ahead and integrate it.

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PR Comment: https://git.openjdk.org/jdk/pull/16873#issuecomment-1832522525