migrating MacPorts to High Sierra: "All compilers are either blacklisted or unavailable..."

[Murray Eisenberg]

In case it helps:

     [~]$ which gcc
   /usr/bin/gcc

     [~]$ gcc —version
   Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
   Apple LLVM version 9.0.0 (clang-900.0.38)
   Target: x86_64-apple-darwin17.2.0
   Thread model: posix
   InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin


> On 10 Nov2017, at 4:53 PM, Murray Eisenberg <murrayeisenberg at gmail.com> wrote:
> 
> After upgrading macOS from Sierra (10.12.6) to High Sierra (10.13.1), I updated Xcode to 9.1 and executed
> 
>    xcode-select -p
> 
> which gave: /Applications/Xcode.app/Contents/Developer
> and then:
> 
>    xcode-select —install
> 
> which installed (via App Store > Updates)  "Command Line Tools (macOS High Sierra version 10.13) for Xcode” Version 9.0.
> If I try xcode-select —install again, I see:
> 
>    xcode-select: error: command line tools are already installed, use "Software Update" to install updates
> 
> I went through the procedure at 
> 
>    https://trac.macports.org/wiki/Migration <https://trac.macports.org/wiki/Migration>
> 
> to migrate MacPorts.
> 
> In step 3, after saving installed ports (substep a) and saving the list of requested ports (substep b), I uninstalled all installed ports (substep c) and cleaned partially-completed builds (substep d).
> 
> Now in doing substep e, ending with...
> 
>    sudo ./restore_ports.tcl myports.txt
> 
> I get warning messages:
> 
>   Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option
>   Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option
>   Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option
>   Error: we appear to be stuck, exiting...
>   infinite loop
>       while executing
>   "sort_ports $portList"
>       invoked from within
>   "set operationList [sort_ports $portList]"
>     (file "./restore_ports.tcl" line 285)
> 
> I wondered about the fact that Xcode itself is 9.1, whereas the Command Line tools are 9.0, yet.
> Is that the cause of the problem? I don’t see how to install any later version of the Xcode Command Line Tools.
> 
> ---
> Murray Eisenberg			murrayeisenberg at gmail.com <mailto:murrayeisenberg at gmail.com>
> 503 King Farm Blvd #101	Home (240)-246-7240
> Rockville, MD 20850-6667	Mobile (413)-427-5334
> 
> 

---
Murray Eisenberg			murrayeisenberg at gmail.com
503 King Farm Blvd #101	Home (240)-246-7240
Rockville, MD 20850-6667	Mobile (413)-427-5334


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