$ cmake --install-prefix=/tmp/2 ../ldc
[...]
$ make -j12 druntime-ldc-unittest
[...]
core/exception.d(700): Error: Function type does not match previously declared function with the same mangled name: `onOutOfMemoryError`
core/exception.d(700): Previous IR type: void (i8*)
core/exception.d(700): New IR type: void (i8*, { i64, i8* }, i64)
I think this is because the ldc compiler is behind of druntime srcs: https://github.com/dlang/dmd/commit/b6740a27c30df368e81e1918ea5276485d12a8b6
I don't know if this is normal or not