diff --git a/elf/elffile.cpp b/elf/elffile.cpp
--- a/elf/elffile.cpp
+++ b/elf/elffile.cpp
@@ -381,18 +381,26 @@ QString elfresolveMachine(Elf64_Half	e_m
     case EM_XTENSA:
         machineName = " Tensilica Xtensa Architecture ";
         break;
+#ifdef EM_AARCH64
     case EM_AARCH64:
         machineName = " ARM AARCH64 ";
         break;
+#endif
+#ifdef EM_TILEPRO
     case EM_TILEPRO:
         machineName = " Tilera TILEPro ";
         break;
+#endif
+#ifdef EM_MICROBLAZE
     case EM_MICROBLAZE:
         machineName = " Xilinx MicroBlaze ";
         break;
+#endif
+#ifdef EM_TILEGX
     case EM_TILEGX:
         machineName = " Tilera TILE-Gx ";
         break;
+#endif
     case EM_NUM:
         machineName = "";
         break;