How to install on 10.15 with deployment target as 10.13?

[Sandeep Thakkar]

On Fri, Jun 26, 2020 at 10:41 AM Ryan Schmidt <ryandesign at macports.org>
wrote:

>
>
> On Jun 25, 2020, at 23:15, Sandeep Thakkar wrote:
> >
> > I'm compiling postgres with LLVM support on macOS 10.15 Catalina. The
> binaries are supported on 10.13+. On target machine (10.13), the library
> fails to load with the following error:
> >
> > dlopen(/Library/PostgreSQL/13/lib/postgresql/llvmjit.so, 10): Symbol not
> found: ____chkstk_darwin
> >
> > I guess this is because:
> > $ otool -l /opt/local/libexec/llvm-8.0/lib/*.dylib | grep -B1 -A3 minos
> >        sdk 10.15
> >      minos 10.15
> >
> > Before I installed LLVM-8.0 using macports on 10.15, I appended
> /opt/local/etc/macports/macports.conf file with "macosx_deployment_target
>  10.13"
>
> That should be enough, if you build from source. You might have received a
> binary from our server instead, which was built without that setting. Set
> "buildfromsource always" in macports.conf, and uninstall and reinstall
> postgres and all of its dependencies.
>
> you are right, I missed that.


> If you want to use this MacPorts prefix for other things that don't need a
> nonstandard deployment target and you want to be able to receive binaries
> of those, then I recommend you leave your main MacPorts prefix /opt/local
> set for the default deployment target and keep binaries enabled, and
> install a second copy of MacPorts somewhere else like /opt/macportsfor10.13
> and set its macports.conf for the 10.13 deployment target. MacPorts isn't
> able to use binaries for nondefault MacPorts prefixes anyway.
>
> that's a nice idea. Thanks for sharing.

>
> > and also did "export MACOSX_DEPLOYMENT_TARGET=10.13" on the terminal
> where I executed port install clang-8.0
>
> MacPorts will intentionally ignore this and most other environment
> variables you set.
>
> OK.

Thanks once again for your quick help.

-- 
Sandeep Thakkar
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