compile error on format.d

[acarion]

I'm trying DMD on Linux. I downloaded version 1.018 and installed on a Gentoo system by the instructions on prowiki http://www.prowiki.org/wiki4d/wiki.cgi?D__Tutorial/InstallingDCompiler

When I try to compile a 6 lined hello world program, DMD returns

/usr/local/lib/phobos/std/format.d(1463): found ':' when expecting ','

it repeats the exact same message (it appears twice).

What did I do wrong?