llvm21: temporary nocross

Author: Duncaen

srcpkgs/llvm21/template

@@ -63,6 +63,8 @@ conflicts="llvm18>=0 llvm17>=0 llvm15>=0"
 lib32disabled=yes
 python_version=3
 
+nocross="temporary nocross to avoid cross builders building host llvm21"
+
 if [ "$CROSS_BUILD" ]; then
 	hostmakedepends+=" llvm${_major}-cross-tools SPIRV-LLVM-Translator${_major}"
 else