Fix configure.ac typo.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65870 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

configure.ac

@@ -2325,9 +2325,9 @@ AS_IF([test "${universal_binary-no}" = yes ], [
     AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $dir)
 ])
 
-AC_MSG_CHECKING(native coroutine implementation for $target_cpu-$target_os)
+AC_MSG_CHECKING(native coroutine implementation for ${target_cpu}-${target_os})
 AS_CASE(["$target_cpu-$target_os"],
-  [x*64-darwin], [
+  [x*64-darwin*], [
     AC_MSG_RESULT(amd64)
     COROUTINE_H=coroutine/amd64/Context.h
     AC_DEFINE_UNQUOTED(FIBER_USE_COROUTINE, ["$COROUTINE_H"])
@@ -2344,13 +2344,13 @@ AS_CASE(["$target_cpu-$target_os"],
     COROUTINE_H=coroutine/x86/Context.h
     AC_DEFINE_UNQUOTED(FIBER_USE_COROUTINE, ["$COROUTINE_H"])
     AC_LIBOBJ([coroutine/x86/Context])
-  ]
+  ],
   [x64-mingw32], [
     AC_MSG_RESULT(x86)
     COROUTINE_H=coroutine/win64/Context.h
     AC_DEFINE_UNQUOTED(FIBER_USE_COROUTINE, ["$COROUTINE_H"])
     AC_LIBOBJ([coroutine/win64/Context])
-  ]
+  ],
   [*], [
     AC_MSG_RESULT(no)
   ]