diff --git a/configure b/configure
index ec4ab96d1dbdd8a0bb7da16f9e9f39c3bd955af0..58419cd88c19879a6c0a50bc945f19eb7499b3bd 100755
--- a/configure
+++ b/configure
@@ -5934,10 +5934,10 @@ EOF
             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
         esac
 
-        check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
-        check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
-        check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
-        check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
+        enabled avx512 && check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
+        enabled avx2   && check_x86asm avx2_external   "vextracti128 xmm0, ymm0, 0"
+        enabled xop    && check_x86asm xop_external    "vpmacsdd xmm0, xmm1, xmm2, xmm3"
+        enabled fma4   && check_x86asm fma4_external   "vfmaddps ymm0, ymm1, ymm2, ymm3"
         check_x86asm cpunop          "CPU amdnop"
     fi