RFR: 8236714: enable link-time section-gc for linux to remove unused code

[Baesken, Matthias]

Hi Erik, okay I'll check that .
I had the impression I would have ordering  issues of the m4 files and how they end up in the generated-configure.sh  but  looks like that’s not the case .

Best regards, Matthias


> 
> Hello Matthias,
> 
> You can keep the setting up of all the flags in flags-cflags.m4 and
> flags-ldflags.m4 based on the value of ENABLE_LINKTIME_GC. You can also
> default the value of this new parameter to true for s390x to keep the
> current behavior for that platform. As it is in this patch, the JVM
> flags for s390x are setup in configure while the JDK flags are in make,
> which gets confusing I think.
> 
> /Erik
>