I'm trying to reproduce a buildbot error with
./swift/utils/update-checkout --clone, but I'm finding that CoreFoundation/Foundation cannot build due to the following error:
../build/buildbot_incremental/foundation-linux-x86_64/Foundation/usr//lib/swift/CoreFoundation/CFInternal.h:96:10: fatal error: 'Block.h' file not found #include <Block.h> ^~~~~~~~~ 1 error generated.
Has anybody seen this before? If it matters, I'm building on Red Hat Fedora 28.