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

// Pass --no-xcselect to avoid injecting an SDK that supports builtin modules.
// RUN: %clang -target x86_64-apple-darwin22.4 --no-xcselect -### %s 2>&1 | FileCheck --check-prefix=CHECK_OLD %s
// RUN: %clang -isysroot %S/Inputs/MacOSX10.15.sdk -target x86_64-apple-macos10.15 -### %s 2>&1 | FileCheck --check-prefix=CHECK_OLD %s
// RUN: %clang -isysroot %S/Inputs/iPhoneOS13.0.sdk -target arm64-apple-ios13.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_OLD %s
// CHECK_OLD: -fbuiltin-headers-in-system-modules

// RUN: %clang -isysroot %S/Inputs/MacOSX15.0.sdk -target x86_64-apple-macos14.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/MacOSX15.0.sdk -target x86_64-apple-macos15.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/MacOSX15.0.sdk -target x86_64-apple-ios18.0-macabi -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/MacOSX15.1.sdk -target x86_64-apple-macos15.1 -darwin-target-variant x86_64-apple-ios18.1-macabi -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/MacOSX15.1.sdk -target x86_64-apple-ios18.1-macabi -darwin-target-variant x86_64-apple-macos15.1 -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/DriverKit23.0.sdk -target arm64-apple-driverkit23.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// RUN: %clang -isysroot %S/Inputs/FakeOS1.0.sdk -target arm64-apple-ios1.0 -### %s 2>&1 | FileCheck --check-prefix=CHECK_NEW %s
// CHECK_NEW-NOT: -fbuiltin-headers-in-system-modules