Add a comment explaining why r117813 was needed.
llvm-svn: 119518
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@ -32,6 +32,11 @@
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using namespace clang;
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using namespace clang;
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using namespace clang::driver;
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using namespace clang::driver;
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// This function isn't referenced outside its translation unit, but it
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// can't use the "static" keyword because its address is used for
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// GetMainExecutable (since some platforms don't support taking the
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// address of main, and some platforms can't implement GetMainExecutable
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// without being given the address of a function in the main executable).
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llvm::sys::Path GetExecutablePath(const char *Argv0) {
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llvm::sys::Path GetExecutablePath(const char *Argv0) {
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// This just needs to be some symbol in the binary; C++ doesn't
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// This just needs to be some symbol in the binary; C++ doesn't
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// allow taking the address of ::main however.
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// allow taking the address of ::main however.
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