[PATCH] [ELF] Add --{,no-}as-needed.

[Shankar Kalpathi Easwaran]

================
Comment at: lib/ReaderWriter/ELF/OutputELFWriter.h:211
@@ -192,1 +210,3 @@
+      _soNeeded.insert(soname);
+  }
   // Never mark the dynamic linker as DT_NEEDED
----------------
It looks like all the needed entries will not be in link order. The loop(just above your change) goes over the list of files that are really needed and add its to the needed list.

http://reviews.llvm.org/D7009

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