--- configure.orig	2020-12-30 00:12:14 UTC
+++ configure
@@ -14937,7 +14937,7 @@ fi
 esac
 
 case "${ax_cv_c_compiler_vendor}" in
-    gnu|intel)
+    gnu|intel|clang)
         # SSE/SSE2
         if test "$have_sse2" = "yes" -a "x$SSE2_CFLAGS" = x; then
             if test "$PRECISION" = d; then flag=msse2; else flag=msse; fi