> On Sep 22, 2016, at 1:07 PM, Jeremy Huddleston Sequoia > <jerem...@macports.org> wrote: > >> >> On Sep 22, 2016, at 07:19, Adam Dershowitz <de...@alum.mit.edu> wrote: >> >> >> >>> On Sep 22, 2016, at 4:49 AM, Jeremy Huddleston Sequoia >>> <jerem...@macports.org> wrote: >>> >>> >>>> On Sep 21, 2016, at 12:45, Adam Dershowitz <de...@alum.mit.edu> wrote: >>>> >>>> It does: >>>> >>>> $ xcode-select -p >>>> /Applications/Xcode.app/Contents/Developer >>>> >>>> >>>> For me some updates in Macports, including some builds, seem to work OK, >>>> and others, such as cmake, are giving an error: >>>> https://trac.macports.org/ticket/52258 >>>> >>>> I’m not sure if I then need to completely switch to Xcode 7? Or if I can >>>> just install the command line tools for 10.11 Xcode 7.3.1? If I do that, >>>> where do they install, so that I can point xcode-select to the proper path? >>> >>> If you don't have the CLTools installed, you wouldn't be able to install >>> most of MacPorts. I'm pretty sure you likely have them installed. >>> >>> Dropping back down to Xcode 7 would mean that Xcode.app would contain the >>> 10.11 SDK and would workaround your issue, but the issue is that the port >>> isn't honoring your SDK (and maybe deployment target) selections (which >>> default to / and host os version respectively). >>> >>> >> >> >> Something is still not clear to me. I had Xcode 7 installed. I was under >> the impression that it included the SDK internally, so I don’t think that I >> had separately installed the CLTools (although I’m not positive). > > Do you have /usr/include on your system? If you do, you installed the > CLTools.
Yes, I do. Although I can’t confirm when I might have installed it (is there an easy way to tell if the headers were from some older version i.e. 10.7,10.8 etc?). > >> And, I have used macports for many years without a problem (over many >> versions of Xcode). When Xcode 8 was released I installed it, but didn’t >> install CLTools either. >> What still isn’t clear to me is if cmake and openmodelica (which does have >> the same problem as cmake, but it also depends on cmake so I tried to build >> that with the working cmake) should work with my current configuration? Do >> they each have a bug? Should just installing 10.11 CLTools allow them to >> build? > > It's possibly a bug in cmake and openmodelica ports (they're using the SDK > inside of Xcode.app even though MacPorts is configured to use /). > > It's definitely a bug in cmake and openmodelica upstream. They're failing to > build properly for the older deployment targets when using newer SDKs. In that case, it sounds likely that installing the newer CLTools won’t help, since I already have /usr/include. So, at this point my options are to wait for bug fixes, or to downgrade. > >> Perhaps the answer, that I was missing, is that to use Xcode 8, on 10.11, >> the user must explicitly install CLTools, but that would not be the case to >> run Xcode 7 on 10.11 or Xcode 8 on 10.12? > > Depends on your perspective. We'd like to be in the world where you don't > need to install the system headers, but 90% of OSS software fails when the > SDK is newer than the base system because most OSS assumes that the SDK > matches the minimum deployment target. Thanks.
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