@@ -167,24 +167,23 @@
   <a href="#installation">regular instructions</a> above.
 
   To build for iOS, follow the regular instructions, but instead of
   `./configure` do something like this:
 
-    $ clang="clang -isysroot $(xcrun --sdk iphoneos --show-sdk-path)"
-    $ export OBJC="$clang -arch armv7 -arch arm64"
-    $ export OBJCPP="$clang -arch armv7 -E"
-    $ export IPHONEOS_DEPLOYMENT_TARGET="9.0"
+    $ clang="xcrun --sdk iphoneos clang"
+    $ export OBJC="$clang -arch arm64e -arch arm64"
+    $ export OBJCPP="$clang -arch arm64e -E"
+    $ export IPHONEOS_DEPLOYMENT_TARGET="10.0"
     $ ./configure --prefix=/usr/local/ios --host=arm64-apple-darwin
 
   To build for the iOS simulator, follow the regular instructions, but instead
   of `./configure` use something like this:
 
-    $ clang="clang -isysroot $(xcrun --sdk iphonesimulator --show-sdk-path)"
-    $ export OBJC="$clang -arch arm64 -arch x86_64"
-    $ export OBJCPP="$clang -arch arm64 -E"
-    $ export IPHONEOS_DEPLOYMENT_TARGET="9.0"
-    $ ./configure --prefix=/usr/local/iossim --host=arm64-apple-darwin
+    $ clang="xcrun --sdk iphonesimulator clang"
+    $ export OBJC="$clang -arch $(uname -m)"
+    $ export IPHONEOS_DEPLOYMENT_TARGET="10.0"
+    $ ./configure --prefix=/usr/local/iossim --host=$(uname -m)-apple-darwin
 
 <h3 id="framework-in-xcode">Using the macOS or iOS framework in Xcode</h3>
 
   To use the macOS framework in Xcode, you need to add the `.framework`s to
   your project and add the following flags to `Other C Flags`: