RFR: JDK-8237879: make 4.3 breaks build

Tue Jan 28 11:05:52 UTC 2020

On 2020-01-28 00:13, Erik Joelsson wrote:
> Please review this fix to make the build compatible with GNU make 4.3. 
> See bug for details on the fix, but this change basically adds an 
> empty rule like this for the example failure:
>
> /localhome/git/jdk-sandbox/open/build/linux-x86_64-server-release/buildtools/langtools_tools_classes/_the.BUILD_TOOLS_LANGTOOLS.vardeps: 
>
>
> With this change I'm able to build with make 4.3 and DependOnVariable 
> is still behaving as expected.
>
> Webrev: http://cr.openjdk.java.net/~erikj/8237879/webrev.01/index.html
Oh, we've solved this in parallel. :-&

Actually, I think I prefer my fix:

http://cr.openjdk.java.net/~ihse/JDK-8237879-make-4-3-include-is-broken/webrev.01

I think it more clearly captures the issue, rather than adding a "magic" 
workaround.

/Magnus

>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8237879
>
> /Erik
>