[cfe-dev] clang built from source in Mac OSX 10.14 with apple-clang/Xcode missing stdlib from include search path

[Sean McBride via cfe-dev]

Jens,

I've finally tried your patch (against current master), and it indeed solves the problem for me.

Is there a ticket in bugzilla for this?  I feel it should be a 10.0.0 release blocker.

Cheers,

Sean



On Wed, 11 Dec 2019 11:09:31 +0800, Jens Jorgensen said:

>Apply my patch and build like :
>
>cmake -DLLVM_ENABLE_PROJECTS=clang -G "Unix Makefiles"
>-DCMAKE_BUILD_TYPE=Release
>-DCLANG_XCODE_TOOLCHAIN_ROOT=/Applications/Xcode.app/Contents/Developer/
>Toolchains/XcodeDefault.xctoolchain
>../llvm-project/llvm
>
>On 12/10/19 7:45 AM, Sean McBride wrote:
>> On Wed, 25 Sep 2019 14:49:57 +0200, Hans Wennborg via cfe-dev said:
>>
>>> I'm always confused when trying to get locally-built Clang to find
>>> stdlib headers on my Mac.
>>>
>>> Last time, after upgrading to Mojave, following the TL;DR advice from
>>> this answer made it work for me: https://stackoverflow.com/a/52530212
>> Seems that advice is obsolete. :(  Nothing else I found online worked
>either.
>>
>>> It would certainly be nice if this could somehow work out of the box.
>> Until then, anyone know how to make one's own build of clang find C++
>headers on macOS?
>>
>> Thanks,
>>
>> Sean
>>
>>
>-- 
>Jens B. Jorgensen
>jbj1 at ultraemail.net