bzip2: cleanup usage of compiler
bzip2: cleanup usage of compiler

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Former-commit-id: f124a1ade16c35a5ba2960026c6f38298656a63b [formerly fbd424134b98e0de4e96f2b7ef9ae93be3556823]
Former-commit-id: a965b2d5a04d66c5f58a9baa34f16f8e838255f2
PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild