[PATCH] [GNU] Implement --enable-new-dtags/--disable-new-dtags

[Davide Italiano]

Sample output:

davide at rabbit1:/exps/llvm/build/bin % ./clang test.c -shared -Wl,-rpath=/plop -Wl,--disable-new-dtags -o test1.so
davide at rabbit1:/exps/llvm/build/bin % readelf --dynamic ./test1.so | grep PATH
0x000000000000000f (RPATH)              Library rpath: [/plop]
davide at rabbit1:/exps/llvm/build/bin % ./clang test.c -shared -Wl,-rpath=/plop -Wl,--enable-new-dtags -o test1.so
davide at rabbit1:/exps/llvm/build/bin % readelf --dynamic ./test1.so | grep PATH
0x000000000000001d (RUNPATH)            Library runpath: [/plop]


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8836

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