Possible dmd 2.078 regression ?

[Basile B.]

I have a simple program that only compiles if the dependency is 
not pre-compiled as a static library. It worked fine before. 
Please test this

---
if [ ! -d "iz" ]; then
     git clone https://www.github.com/BBasile/iz.git
fi

cd iz/scripts
sh compile.sh
cd ../

#fails to link
dmd samples/dictionnary_suffixarray.d lib/iz.a -Iimport > 
ddemangle


#on the other hand, this works...
dub samples/dictionnary_suffixarray.d <<< "q"

#or even this...
dmd samples/dictionnary_suffixarray.d import/iz/strings.d 
import/iz/memory.d -Iimport
---

and tell me what do you think: regression or not ?