diff -up SPIRV-Tools-45dd184c790d6bfc78a5a74a10c37e888b1823fa/source/spirv_target_env.cpp.dma ./SPIRV-Tools-45dd184c790d6bfc78a5a74a10c37e888b1823fa/source/spirv_target_env.cpp
--- SPIRV-Tools-45dd184c790d6bfc78a5a74a10c37e888b1823fa/source/spirv_target_env.cpp.dma	2022-02-16 08:20:38.927239298 +1000
+++ SPIRV-Tools-45dd184c790d6bfc78a5a74a10c37e888b1823fa/source/spirv_target_env.cpp	2022-02-16 08:20:42.262301854 +1000
@@ -397,6 +397,8 @@ std::string spvLogStringForEnv(spv_targe
   return "Unknown";
 }
 
+// workaround gcc12/stdlibc++ -Wrestrict bug.
+#pragma GCC diagnostic ignored "-Wrestrict"
 std::string spvTargetEnvList(const int pad, const int wrap) {
   std::string ret;
   size_t max_line_len = wrap - pad;  // The first line isn't padded