From 8b70dc166a12f3c5b8e003f5556be0f3c4395cfe Mon Sep 17 00:00:00 2001
From: Mamy Ratsimbazafy <mamy_github@numforge.co>
Date: Thu, 25 Jul 2024 17:19:35 +0200
Subject: [PATCH] fix: 1.6.x compat

---
 constantine/named/deriv/parser_curves.nim | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/constantine/named/deriv/parser_curves.nim b/constantine/named/deriv/parser_curves.nim
index 3389cdb9..403e34cc 100644
--- a/constantine/named/deriv/parser_curves.nim
+++ b/constantine/named/deriv/parser_curves.nim
@@ -25,7 +25,9 @@ export Algebra, CurveFamily, SexticTwist
 template getCoef(c: CurveCoef, curveName: untyped): untyped {.dirty.}=
   case c.kind
   of NoCoef:
-    error "Unreachable"
+    {.warning[UnreachableCode]: off.}: # we need to keep the discard for 1.6.x compat
+      error "Unreachable"
+      nnkDiscardStmt.newTree(newLit "Dummy")
   of Small:
     newLit c.coef
   of Large: