[PATCH] D37631: [libFuzzer] Support using libc++

[Jonas Hahnfeld via Phabricator via llvm-commits]

Hahnfeld added a comment.

One disadvantage of this change is that the libc++ variant is reconfigured on every invocation of `make` / `ninja`, even if there is nothing to do:

  [1/3] No force-reconfigure step for 'libcxx_fuzzer_x86_64'
  [2/3] Performing configure step for 'libcxx_fuzzer_x86_64'
  -- libcxx_fuzzer_x86_64 configure command succeeded.  See also <...>/projects/compiler-rt/lib/fuzzer/libcxx_fuzzer_x86_64/src/libcxx_fuzzer_x86_64-stamp/libcxx_fuzzer_x86_64-configure-*.log
  [3/3] Performing build step for 'libcxx_fuzzer_x86_64'
  -- libcxx_fuzzer_x86_64 build command succeeded.  See also <...>/projects/compiler-rt/lib/fuzzer/libcxx_fuzzer_x86_64/src/libcxx_fuzzer_x86_64-stamp/libcxx_fuzzer_x86_64-build-*.log

Can we avoid this and have `ninja` say that there is no work to do?


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D37631