Linker errors when trying to build OpenSSL with MD2 and RC5 support

Michael Wojcik Michael.Wojcik at
Fri Sep 13 18:41:22 UTC 2019

> From: Osman Zakir [mailto:osmanzakir90 at]
> Sent: Friday, September 13, 2019 13:26

> I had a successful build before I configured it again to try to get MD2 and RC5, so I
> didn't see a reason to clean the build.

Reconfiguring changes the makefiles. You should always clean after a reconfigure. That's true for the vast majority of software projects that use a makefile-creating build process.

> But I also want to know after that whether or not it's possible to enable all of the
> algorithms supported by OpenSSL version 1.1.1d.

If it's not possible to enable an algorithm, it isn't actually "supported", is it?

If Configure claims a particular algorithm can be enabled, then if it's not actually possible to build with it enabled and use it, I'd say that's a bug somewhere. I haven't tried to build with all possible Configure options enabled, though.

Michael Wojcik
Distinguished Engineer, Micro Focus

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