RFR: 8307316: Let JavaFX be built on unknown architectures

[Kevin Rushforth]

On Wed, 3 May 2023 16:02:34 GMT, John Neffenger <jgneff at openjdk.org> wrote:

> Please review these changes to the Gradle build files and the dependency verification file. The initial version of this pull request extends the permitted build platforms for Linux to the Java architectures `arm`, `ppc64le`, and `s390x` and adds an entry to the dependency verification file for the `i386` architecture. The Debian names for these architectures are `armhf`, `i386`, `ppc64el`, and `s390x`.

Changing the errors to warnings seems good, as does adding the additional artifact. I left a question about the `IS_64` change.

buildSrc/linux.gradle line 48:

> 46:         "-Wextra", "-Wall", "-Wformat-security", "-Wno-unused", "-Wno-parentheses", "-Werror=trampolines"] // warning flags
> 47: 
> 48: if (OS_ARCH == "i386") {

Why was this change needed, and is it sufficient? It seems that there is a larger problem (likely out of scope for this fix) as to how `IS_64` is set that might need follow-up.

-------------

PR Review: https://git.openjdk.org/jfx/pull/1124#pullrequestreview-1437626675
PR Review Comment: https://git.openjdk.org/jfx/pull/1124#discussion_r1201130504