evmone-standalone static library clang build fails while llvm-ar reads mri script

[bshastry]

The Solidity fuzzers on oss-fuzz build evmone static libraries (see https://github.com/google/oss-fuzz/blob/8851460f3d7e712a406909acdf8b3aa2882e011d/projects/solidity/Dockerfile#L56-L61) as part of their base docker image. During a recent update from v0.4.0 -> 0.8.0 (see google/oss-fuzz#6207) it was noticed that evmone-standalone.a build fails (failing log: https://gist.github.com/bshastry/e81e76cc57c393b07accee7599548c88).

The error occurs here

2021-08-23T08:54:56.0397220Z [1/2] Linking CXX static library lib/x86_64-linux-gnu/libevmone-standalone.a
2021-08-23T08:54:56.0470727Z FAILED: : && /usr/local/bin/cmake -E rm -f lib/x86_64-linux-gnu/libevmone-standalone.a && /usr/local/bin/llvm-ar qc lib/x86_64-linux-gnu/libevmone-standalone.a   && /usr/local/bin/llvm-ranlib lib/x86_64-linux-gnu/libevmone-standalone.a && cd /src/evmone/build/lib/evmone && /usr/local/bin/llvm-ar -M < evmone-standalone.mri
2021-08-23T08:54:56.0472769Z /usr/local/bin/llvm-ar: error: script line 1: unknown command: OPEN
2021-08-23T08:54:56.0473431Z ninja: build stopped: subcommand failed.

Sadly, this is stalling Solidity fuzzing :(

Pointers to fix the problem welcome :)

[chfast]

How do you link it to solidity later? Do you even need evmone-standalone?

[chfast]

Are you able to test the version in #374?

[bshastry]

How do you link it to solidity later? Do you even need evmone-standalone?

Like here: https://github.com/ethereum/solidity/blob/69411436139acf5dbcfc5828446f18b9fcfee32c/test/tools/ossfuzz/CMakeLists.txt#L119-L125

Fuzzers require a static library to be linked against because the machines on which fuzzers run may not have dependencies installed. Since evmone v0.4.0, I have been linking evmc and evmone-standalone since I previously ran into linking issues if I only linked evmc.

[bshastry]

Are you able to test the version in #374?

I can confirm that that PR fixes this issue.

[chfast]

Fixed in #374, released in 0.8.2.