diff --git a/include/jps/jump/jump_point_offline.h b/include/jps/jump/jump_point_offline.h
index c37edc3..9c402f0 100644
--- a/include/jps/jump/jump_point_offline.h
+++ b/include/jps/jump/jump_point_offline.h
@@ -79,7 +79,8 @@ struct jump_point_table
 	static consteval length
 	chain_stride() noexcept
 	{
-		constexpr length acv = std::abs(static_cast<length>(chain_value()));
+		length acv = static_cast<length>(chain_value());
+		acv        = acv >= 0 ? acv : -acv;
 		return acv - 2; // direct jump max at chain_stride()+1, but chain only
 		                // chain_stride() as we must never reach 0
 	}
diff --git a/include/jps/jump/jump_point_online.h b/include/jps/jump/jump_point_online.h
index 6b2dd0d..80c089a 100644
--- a/include/jps/jump/jump_point_online.h
+++ b/include/jps/jump/jump_point_online.h
@@ -127,7 +127,7 @@ class jump_point_online
 	rotate_grid map_;
 };
 
-void
+inline void
 jump_point_online::set_map(const rotate_grid& orig)
 {
 	map_ = orig;
@@ -238,7 +238,7 @@ jump_point_online::jump_intercardinal_many(
 	return {results_count, walk_count};
 }
 
-std::pair<jump_distance, jump_distance>
+inline std::pair<jump_distance, jump_distance>
 jump_point_online::jump_target(
     domain::grid_pair_id node_id, point loc, point target)
 {