M2Crypto 0.20.2 for Ancient OpenSSL

M2Crypto has been claiming support for OpenSSL 0.9.7 but it actually turned out I wasn’t testing with quite that old OpenSSL version. Recently M2Crypto got support for RSA PSS stuff, but it turns out this was added in OpenSSL 0.9.7h, and you could not build/run M2Crypto against an older OpenSSL version. Arguably you should not use those old OpenSSL versions, but apparently there are people who can’t help it. And since M2Crypto claims support all the way back to 0.9.7 it made sense to make it so.

The M2Crypto trunk and 0.20.2 now omit the RSA PSS stuff if you have too old OpenSSL. Additionally, to prevent this kind of error from happening in the future, I added “minreq” (for Minimum Requirements) Tinderbox client that builds and tests M2Crypto trunk using Python 2.3, OpenSSL 0.9.7 and SWIG 1.3.28 (the current minimum requirements) on Ubuntu 8.04.

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