From f983c31eb2f118e2e63af9a225b35746761e710a Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Tue, 30 Jul 2024 16:07:45 +0200
Subject: [PATCH] fix: workaround for linking issues on the older clang
 compilers

---
 src/core/include/mp-units/framework/expression_template.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/include/mp-units/framework/expression_template.h b/src/core/include/mp-units/framework/expression_template.h
index c0ec574b1..72a2db0e2 100644
--- a/src/core/include/mp-units/framework/expression_template.h
+++ b/src/core/include/mp-units/framework/expression_template.h
@@ -334,7 +334,7 @@ struct expr_fractions : decltype(expr_fractions_impl<OneType, type_list<Ts...>>(
 
 // expr_make_spec
 template<typename NumList, typename DenList, typename OneType, template<typename...> typename To>
-[[nodiscard]] consteval auto expr_make_spec_impl()
+[[nodiscard]] MP_UNITS_CONSTEVAL auto expr_make_spec_impl()
 {
   constexpr std::size_t num = type_list_size<NumList>;
   constexpr std::size_t den = type_list_size<DenList>;
@@ -359,7 +359,7 @@ template<typename NumList, typename DenList, typename OneType, template<typename
  */
 template<typename NumList, typename DenList, typename OneType, template<typename, typename> typename Pred,
          template<typename...> typename To>
-[[nodiscard]] consteval auto get_optimized_expression()
+[[nodiscard]] MP_UNITS_CONSTEVAL auto get_optimized_expression()
 {
   using num_list = expr_consolidate<NumList>;
   using den_list = expr_consolidate<DenList>;
@@ -380,7 +380,7 @@ template<typename NumList, typename DenList, typename OneType, template<typename
  */
 template<template<typename...> typename To, typename OneType, template<typename, typename> typename Pred, typename Lhs,
          typename Rhs>
-[[nodiscard]] consteval auto expr_multiply(Lhs, Rhs)
+[[nodiscard]] MP_UNITS_CONSTEVAL auto expr_multiply(Lhs, Rhs)
 {
   if constexpr (is_same_v<Lhs, OneType>) {
     return Rhs{};