Bug 20279 – druntime PR #2821 causes link error for Fiber-dependent code

Druntime PR #2821 (core.thread.refactor) has broken druntime for code that needs to link with Fiber routines like core.thread.Fiber.yield: Sample code: ------------ import core.thread : Fiber; void main() { auto f = new Fiber(() { Fiber.yield(); }); } ------------ Compiler output: ------------ /usr/bin/ld: test.o: in function `_Dmain': test.d:(.text._Dmain[_Dmain]+0xb): undefined reference to `_D4core6thread5fiber5Fiber7__ClassZ' /usr/bin/ld: test.d:(.text._Dmain[_Dmain]+0x1e): undefined reference to `_D4core6thread8osthread8PAGESIZEym' /usr/bin/ld: test.d:(.text._Dmain[_Dmain]+0x35): undefined reference to `_D4core6thread5fiber5Fiber6__ctorMFNbPFZvmmZCQBrQBpQBlQBi' /usr/bin/ld: test.o: in function `_D4test4mainFZ9__lambda1FNbNiZv': test.d:(.text._D4test4mainFZ9__lambda1FNbNiZv[_D4test4mainFZ9__lambda1FNbNiZv]+0x5): undefined reference to `_D4core6thread5fiber5Fiber5yieldFNbNiZv' collect2: error: ld returned 1 exit status Error: linker exited with status 1 ------------ Reverting to druntime commit 44d25a123616bd7f9332d67a28153286a5442f91 (the one just before PR #2821 was merged) fixes the problem.

Gah, looks like this was a problem with an unclean local druntime build environment. Nuking all build products from druntime and phobos and rebuilding everything from scratch seems to have made this problem go away. Sorry for the false alarm. :-(