--- mesa-26.0.1/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp.orig	2026-02-25 16:54:24.000000000 +0100
+++ mesa-26.0.1/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp	2026-03-04 16:43:23.585594521 +0100
@@ -331,7 +331,7 @@ lp_build_fill_mattrs(std::vector<std::st
       llvm::sys::getHostCPUFeatures(features);
    #endif
 
-   for (llvm::StringMapIterator<bool> f = features.begin();
+   for (llvm::StringMapIterBase<bool,false> f = features.begin();
         f != features.end();
         ++f) {
       MAttrs.push_back(((*f).second ? "+" : "-") + (*f).first().str());