diff --git a/config/functions b/config/functions
index 743b979175..6d2b75f63f 100644
--- a/config/functions
+++ b/config/functions
@@ -186,6 +186,7 @@ cpp = '$CXX'
 ar = '$AR'
 strip = '$STRIP'
 pkgconfig = '$PKG_CONFIG'
+llvm-config = '$SYSROOT_PREFIX/usr/bin/llvm-config-host'
 
 [host_machine]
 system = 'linux'