// Check that darwin passes -fbuiltin-headers-in-system-modules
// when expected.

// RUN: %clang -target x86_64-apple-darwin22.4 -### %s 2>&1 | FileCheck %s
// RUN: %clang -isysroot %S/Inputs/MacOSX10.15.versioned.sdk -target x86_64-apple-macos10.15 -### %s 2>&1 | FileCheck %s
// RUN: %clang -isysroot %S/Inputs/iPhoneOS13.0.sdk -target arm64-apple-ios13.0 -### %s 2>&1 | FileCheck %s
// CHECK: -fbuiltin-headers-in-system-modules

// RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target x86_64-apple-macos98.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_FUTURE %s
// RUN: %clang -isysroot %S/Inputs/MacOSX99.0.sdk -target x86_64-apple-macos99.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_FUTURE %s
// CHECK_FUTURE-NOT: -fbuiltin-headers-in-system-modules