diff -ur t.orig/005_import.t t/005_import.t
--- t.orig/005_import.t	2018-05-09 08:41:35.000000000 -0700
+++ t/005_import.t	2018-05-09 08:42:29.000000000 -0700
@@ -12,7 +12,7 @@
 
 #check for sdk version passed to xs build
 require Config;
-if($Config::Config{ccflags} =~ m/-mmacosx-version-min=10\.(\d)/) {
+if($Config::Config{ccflags} =~ m/-mmacosx-version-min=10\.(\d+)/) {
     $sdk = $1;
 }