diff --git a/configure b/configure
index c4eadcb9cb..843fe1bbb5 100755
--- a/configure
+++ b/configure
@@ -18786,12 +18786,16 @@ int
 main ()
 {
 
+            #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
             #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101000
             #error macOS versions < 10.10 are not supported.
             #endif
             #if __MAC_OS_X_VERSION_MAX_ALLOWED < 101100
             #error macOS SDK version is too low, 10.11 or later is required.
             #endif
+            #elif !defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
+            #error unrecognized platform
+            #endif
 
   ;
   return 0;
diff --git a/configure.in b/configure.in
index 47129cd400..620c99ba3a 100644
--- a/configure.in
+++ b/configure.in
@@ -1367,12 +1367,16 @@ version or omitting it entirely."
             #include <Availability.h>
         ],
         [
+            #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
             #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101000
             #error macOS versions < 10.10 are not supported.
             #endif
             #if __MAC_OS_X_VERSION_MAX_ALLOWED < 101100
             #error macOS SDK version is too low, 10.11 or later is required.
             #endif
+            #elif !defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
+            #error unrecognized platform
+            #endif
         ],
         [AC_MSG_RESULT([yes])],
         [AC_MSG_FAILURE([$error_message])]