[llvm-dev] Clang8 on MacOS 10.14

Tim Northover via llvm-dev llvm-dev at lists.llvm.org
Fri Jun 14 00:58:57 PDT 2019

Hi Hans,

On Fri, 14 Jun 2019 at 05:07, Hans Ã…berg via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> The distribution does not seem to contain any other file stdio.h.

You're going to need a normal copy of Xcode installed to provide the
system headers and libraries; and macOS has been moving away from
putting anything in /usr/include even with the command line tools.

So you probably need to add an extra sysroot argument to your clang
invocation, pointing it at the Xcode installation: -isysroot $(xcrun
--show-sdk-path macosx). Alternatively I believe you can set the
SDKROOT environment variable to that path, if adding CFLAGS is too
tricky. Build systems often detect all this for you (I know CMake



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