rsmith added inline comments.
================
Comment at: lib/Driver/ToolChains.cpp:722-733
@@ -700,1 +721,14 @@
+
+ if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
+ StringRef isysroot = A->getValue();
+ // Assume SDK has path: SOME_PATH/SDKs/PlatformXX.YY.sdk
+ size_t BeginSDK = isysroot.rfind("SDKs/");
+ size_t EndSDK = isysroot.rfind(".sdk");
+ if (BeginSDK != StringRef::npos && EndSDK != StringRef::npos) {
+ StringRef SDK = isysroot.slice(BeginSDK + 5, EndSDK);
+ if (!SDK.startswith(getPlatformFamily()))
+ getDriver().Diag(diag::warn_incompatible_sysroot)
+ << SDK << getPlatformFamily();
+ }
+ }
}
----------------
Can you share some of the code between the parsing the SDK version out of
`-isysroot` here and above?
http://reviews.llvm.org/D18088
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