We were seeing some issues recently where the stdlib wouldn't get copied (actually lipo'd) into its final destination. Doug Coleman reverted the problem commit yesterday in https://github.com/apple/swift/pull/5166 <https://github.com/apple/swift/pull/5166>. Can you update to the latest master and try again?
Jordan > On Oct 6, 2016, at 11:40, Christian Hoffmann via swift-dev > <swift-dev@swift.org> wrote: > > Hi there, > > quick question from someone who likes to get started on the stdlib and > therefore sometimes likes to change an implementation, just to get a better > understanding, what is going on. > > So let's say, I changed something in Bool.swift, e.g. to let the > implementation of `description` in the `CustomStringConvertible` > extension return 'YES' or 'NO'. > > Ok, so doing a > `./swift/utils/build-script --debug-swift-stdlib --build-subdir=ds --` > compiles fine -> Perfect! > > Running the REPL via `./build/ds/swift-macosx-x86_64/bin/swift` gives: > > *** You are running Swift's integrated REPL, *** > *** intended for compiler and stdlib *** > *** development and testing purposes only. *** > *** The full REPL is built as part of LLDB. *** > *** Type ':help' for assistance. *** > (swift) let someBool = true > // someBool : Bool = YES > (swift) print (someBool.description) > YES > > Once again: Perfect and as expected! > > So after seeing, that this was kind of a bad idea and resetting these changes, > re-triggering the same build command > `./swift/utils/build-script --debug-swift-stdlib --build-subdir=ds --` > runs much faster (as expected), BUT: > a newly started REPL gives the same results, as before and not as I > would expect a `true` or `false`. > > I also tried to add a new method: > ``` > let someBool = true > // someBool : Bool = YES > let someBoolStr = someBool.anotherFunc() > LLVM ERROR: Program used external function '__TFSb11anotherFuncfT_SS' which > could not be resolved! > ``` > > Once again: After a clean build, everything seems to work perfect. > Any idea, what needs to be "retriggered", so that the REPL or `swiftc` > picks up the new stdlib? > > Thank you and Regards, > Christian Hoffmann > > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev
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