diff -urNad mono-5.21.0.439.bak/mono/mini/aot-compiler.c mono-5.21.0.439/mono/mini/aot-compiler.c
--- mono-5.21.0.439.bak/mono/mini/aot-compiler.c	2018-11-13 03:22:01.000000000 -0500
+++ mono-5.21.0.439/mono/mini/aot-compiler.c	2018-11-13 11:07:35.737483738 -0500
@@ -12819,7 +12819,7 @@
 	acfg->aot_opts.nftnptr_arg_trampolines = 128;
 #endif
 	acfg->aot_opts.nunbox_arbitrary_trampolines = 256;
-	acfg->aot_opts.llvm_path = g_strdup ("");
+	acfg->aot_opts.llvm_path = g_strdup ("/usr/lib/mono/llvm/bin/");
 	acfg->aot_opts.temp_path = g_strdup ("");
 #ifdef MONOTOUCH
 	acfg->aot_opts.use_trampolines_page = TRUE;