Looks like we don't have a dmd specific CC variable. https://github.com/dlang/dmd/blob/03f149760f53926d1c411d646f87894569fb1948/compiler/src/dmd/link.d#L480 ```sh DMD_CC=$CC CC=dmd ``` That would've made it easier for you. https://issues.dlang.org/show_bug.cgi?id=24423