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Diffstat (limited to 'spec/ruby/README.md')
| -rw-r--r-- | spec/ruby/README.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/spec/ruby/README.md b/spec/ruby/README.md index 536388e7c8..115392835f 100644 --- a/spec/ruby/README.md +++ b/spec/ruby/README.md @@ -128,6 +128,12 @@ MSpec can automatically add new top-level constants in this file with: $ CHECK_LEAKS=save mspec ../mspec/bin/mspec file +### Running Specs on S390x CPU Architecture + +Run the specs with `DFLTCC=0` if you see failing specs related to the zlib library on s390x CPU architecture. The failures can happen with the zlib library applying the patch madler/zlib#410 to enable the deflate algorithm producing a different compressed byte stream. + + $ DFLTCC=0 ../mspec/bin/mspec + ### Contributing and Writing Specs See [CONTRIBUTING.md](https://github.com/ruby/spec/blob/master/CONTRIBUTING.md) for documentation about contributing and writing specs (guards, matchers, etc). |