If no -miphoneos-version-min specified, see if we can set the default based on
-isysroot. rdar://9837120 llvm-svn: 137075
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@ -490,6 +490,21 @@ void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
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Arg *iOSSimVersion = Args.getLastArg(
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options::OPT_mios_simulator_version_min_EQ);
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// If no '-miphoneos-version-min' specified, see if we can set the default
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// based on isysroot.
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if (!iOSVersion) {
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if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
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StringRef first, second;
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StringRef isysroot = A->getValue(Args);
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llvm::tie(first, second) = isysroot.split(StringRef("SDKs/iPhoneOS"));
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if (second != "") {
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const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
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iOSVersion = Args.MakeJoinedArg(0, O, second.substr(0,3));
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Args.append(iOSVersion);
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}
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}
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}
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// FIXME: HACK! When compiling for the simulator we don't get a
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// '-miphoneos-version-min' to help us know whether there is an ARC runtime
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// or not; try to parse a __IPHONE_OS_VERSION_MIN_REQUIRED
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