Re: openjdk8 missing /usr/pkg/gcc6/x86_64--netbsd/lib RPATH when built with gcc-6.4

[maya%netbsd.org@localhost]

On Wed, Jul 25, 2018 at 10:59:00PM +0100, David Brownlee wrote:
> Since netbsd-8 has to pull in gcc-6 in order to build firefox I
> thought I'd try building a few other packages with gcc-6 to see if
> anything exploded.
> 
> One detonater was openjdk8, which fails with
> 
> Error: failed /usr/pkg/java/openjdk8/jre/lib/amd64/server/libjvm.so,
> because /usr/lib/libstdc++.so.7: version CXXABI_1.3 required by
> /usr/pkg/java/openjdk8/jre/lib/amd64/server/libjvm.so not defined
> 
> # ldd /usr/pkg/java/openjdk8/jre/lib/amd64/server/libjvm.so
> /usr/pkg/java/openjdk8/jre/lib/amd64/server/libjvm.so:
>         -lstdc++.7 => /usr/lib/libstdc++.so.7
> 
> Setting "export LD_LIBRARY_PATH=/usr/pkg/gcc6/x86_64--netbsd/lib"
> allows everything to work
> 
> Would anyone have any ideas on how to approach fixing this :)
> 
> Thanks
> 
> David

Sorry I'm confused.
I should really make a package option for --disable-libstdcxx-dual-abi
and consider to enable it on netbsd-8 and newer. Also make better logic
to make libstdc++ major version to base.