--- a/configure.in
+++ b/configure.in
@@ -5189,23 +5189,26 @@ AC_DEFINE(IBMBIDI)
 dnl ========================================================
 dnl accessibility support on by default on all platforms
 dnl ========================================================
 MOZ_ARG_DISABLE_BOOL(accessibility,
 [  --disable-accessibility Disable accessibility support],
     ACCESSIBILITY=,
     ACCESSIBILITY=1 )
 if test "$ACCESSIBILITY"; then
-    if test -z "$MIDL"; then
-        if test "$GCC" != "yes"; then
-            AC_MSG_ERROR([MIDL could not be found. Building accessibility without MIDL is not supported.])
-        else
-            AC_MSG_ERROR([You have accessibility enabled, but widl could not be found. Add --dissable-accessibility to your mozconfig or install widl. See https://developer.mozilla.org/en-US/docs/Cross_Compile_Mozilla_for_Mingw32 for details.])
+    case "$target" in
+    *-mingw*)
+        if test -z "$MIDL"; then
+            if test "$GCC" != "yes"; then
+                AC_MSG_ERROR([MIDL could not be found. Building accessibility without MIDL is not supported.])
+            else
+                AC_MSG_ERROR([You have accessibility enabled, but widl could not be found. Add --dissable-accessibility to your mozconfig or install widl. See https://developer.mozilla.org/en-US/docs/Cross_Compile_Mozilla_for_Mingw32 for details.])
+            fi
         fi
-    fi
+    esac
     AC_DEFINE(ACCESSIBILITY)
 fi
 
 dnl ========================================================
 dnl Disable printing
 dnl ========================================================
 MOZ_ARG_DISABLE_BOOL(printing,
 [  --disable-printing      Disable printing support],