1 files changed, 2 insertions, 29 deletions
diff --git a/mistral/archdefs.h b/mistral/archdefs.h
index 71e14ec2..8b4256ab 100644
--- a/mistral/archdefs.h
+++ b/mistral/archdefs.h
@@ -20,8 +20,6 @@
 #ifndef MISTRAL_ARCHDEFS_H
 #define MISTRAL_ARCHDEFS_H
 
-#include <boost/functional/hash.hpp>
-
 #include "base_clusterinfo.h"
 #include "cyclonev.h"
 
@@ -30,6 +28,8 @@
 #include "nextpnr_assertions.h"
 #include "nextpnr_namespaces.h"
 
+#include <limits>
+
 NEXTPNR_NAMESPACE_BEGIN
 
 using mistral::CycloneV;
@@ -210,31 +210,4 @@ struct ArchCellInfo : BaseClusterInfo
 
 NEXTPNR_NAMESPACE_END
 
-namespace std {
-template <> struct hash<NEXTPNR_NAMESPACE_PREFIX BelId>
-{
-    std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX BelId &bel) const noexcept
-    {
-        return hash<uint32_t>()((static_cast<uint32_t>(bel.pos) << 16) | bel.z);
-    }
-};
-
-template <> struct hash<NEXTPNR_NAMESPACE_PREFIX WireId>
-{
-    std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX WireId &wire) const noexcept
-    {
-        return hash<uint32_t>()(wire.node);
-    }
-};
-
-template <> struct hash<NEXTPNR_NAMESPACE_PREFIX PipId>
-{
-    std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX PipId &pip) const noexcept
-    {
-        return hash<uint64_t>()((uint64_t(pip.dst) << 32) | pip.src);
-    }
-};
-
-} // namespace std
-
 #endif