[libFuzzer] Always build libFuzzer 

There are two reasons why users might want to build libfuzzer:
- To fuzz LLVM itself
- To get the libFuzzer.a archive file, so that they can attach it to their code
This change always builds libfuzzer, and supports the second use case if the specified flag is set.

The point of this patch is to have something that can potentially be shipped with the compiler, and this also ensures that the version of libFuzzer is correct to use with that compiler.

Patch by George Karpenkov.

Differential Revision: https://reviews.llvm.org/D32096



git-svn-id: svn://svn.chromium.org/llvm-project/llvm/trunk/lib/Fuzzer@301054 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
1 file changed