https://issues.dlang.org/show_bug.cgi?id=12661
Dmitry Olshansky <dmitry.o...@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dmitry.o...@gmail.com --- Comment #3 from Dmitry Olshansky <dmitry.o...@gmail.com> --- I suspect it's new bloody @nogc + auto-inference. So a symbol in phobos is detected as @nogc w/o debug and consequently mangles with 'Ni'. Later in user program it's not-@nogc in debug and mangles differently. Now it should just generate a new instantiation not present in compiled library but somehow it doesn't happen. --