ldmd2 does not work with rdmd

[mihails-strasuns]

Follow-up to http://forum.dlang.org/post/qyykgsqdnpezarncueuu@forum.dlang.org

$ cat test.d
void main()
{
    import std.stdio;
    writeln("hello");
}
$ rdmd --compiler=ldmd2 test.d
Error: cannot write object file: Error opening output file 
'/tmp/.rdmd-1000/rdmd-test.d-076D4362D54E9EAA8F49CE8F8A45511D/objs/test.o'
$ ls /tmp/.rdmd-1000/rdmd-test.d-076D4362D54E9EAA8F49CE8F8A45511D/
rdmd.deps

System info (Arch Linux)

$ uname -a
Linux microfog 3.11.1-1-ARCH #1 SMP PREEMPT Sat Sep 14 20:31:35 CEST 2013 i686 GNU/Linux
$ pacman -Qi ldc
Name           : ldc
Version        : 1:0.11.0-3
...
$ pacman -Qi dtools
Name           : dtools
Version        : 2.063.2-2

If there is a relatively simple hotfix possible in either ldc or rdmd, I'd like to add it to Arch package as a workaround while waiting for next release.

[beatgammit]

Can confirm on Arch x86_64:

$ rdmd --compiler=ldmd2 test.d
Error: cannot write object file: Error opening output file
'/tmp/.rdmd-1000/rdmd-test.d-CB24243AA680E0FBBAB7F17C505311DB/objs/test.o