2 files changed, 4 insertions, 1 deletions
diff --git a/dummy/arch.cc b/dummy/arch.cc
index a77620c5..3ef6a4d3 100644
--- a/dummy/arch.cc
+++ b/dummy/arch.cc
@@ -26,7 +26,7 @@ Arch::Arch(ArchArgs) {}
 
 std::string Arch::getChipName() { return "Dummy"; }
 
-void IdString::initialize_arch(Context *ctx) {}
+void IdString::initialize_arch(const Context *ctx) {}
 
 // ---------------------------------------------------------------
 
diff --git a/dummy/arch.h b/dummy/arch.h
index 40aceff2..9bd09f9d 100644
--- a/dummy/arch.h
+++ b/dummy/arch.h
@@ -73,6 +73,9 @@ struct Arch
 
     std::string getChipName();
 
+    virtual IdString id(const std::string &s) const { abort(); }
+    virtual IdString id(const char *s) const { abort(); }
+
     BelId getBelByName(IdString name) const;
     IdString getBelName(BelId bel) const;
     void bindBel(BelId bel, IdString cell);