[jdk8u-dev] RFR: JDK-8284772: 8u GHA: Use GCC Major Version Dependencies Only

[Andrew John Hughes]

On Mon, 25 Apr 2022 23:47:05 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Major versions of GCC often cause problems with OpenJDK. Fedora's eager adoption of them means we often encounter these early. [JDK-8282231](https://bugs.openjdk.java.net/browse/JDK-8282231) is just the latest example from the introduction of GCC 12.
>> 
>> However, the GHA workflow in OpenJDK doesn't just depend on a major version of GCC - which is actually contained in the Ubuntu package name of `gcc-9` itself - but the full revision number, even down to local packaging changes.
>> 
>> I believe this is overkill and leads to valuable time being wasted on issues like [JDK-8283778](https://bugs.openjdk.java.net/browse/JDK-8283778) where the GCC version itself didn't change at all, just the Ubuntu version suffix.
>> 
>> Rather than maintain this for 8u, I suggest we just depend on `gcc-9` which is already a pretty modern version for 8u. I have yet to see an issue be specific to a minor GCC version bump, whereas the current setup is pretty much guaranteed to mean further fixes to the GitHub workflow every time the Ubuntu packager produces a new build.
>> 
>> Note that the x86-32 Linux build already uses just `gcc-9-multilib` which is why it hasn't been broken by the latest GCC update.
>
> Marked as reviewed by serb (Reviewer).

Thanks @mrserb. I've flagged this for 8u approval.

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PR: https://git.openjdk.java.net/jdk8u-dev/pull/35