I'm running into some inexplicable linker errors when trying to
compile a project. I've tried two command lines to compile the
project that I thought were equivalent except for the names of
the output files:
// emptymain.d:
void main(){}
// test.d:
unittest {
double[double] weights = [1:1.2, 4:2.3];
import std.stdio;
writeln("PASSED");
}
dmd -unittest emptymain.d test.d // Linker errors
dmd -unittest test.d emptymain.d // Works
Additionally, the linker errors only occur under a custom version
of druntime. Don't try to reproduce them under the stock
version. (For the curious, it's the precise heap scanning fork
from https://github.com/rainers/druntime/tree/precise_gc2 . I'm
trying to get precise heap scanning ready for prime time.)
My real question, though, is why should the order of these files
on the command line matter and does this suggest a compiler or
linker bug?
