Is Stunnel (any version) compatible with Fips-2.0 for compliance? I have found one individuals instructions for compiling fips-2.0.5 , but he calls out a prefix= in his configure for FIPS which breaks 140-2 compliance rules and makes the build no longer viable

From the Fips-2.0 userguide

"Note that as a condition of the FIPS 140-2 validation no other user specified configuration options

may be specified. This restriction means that an optional install prefix cannot be specified –

however, there is no restriction on subsequent manual relocation of the generated files to the

desired final location."

I know that Stunnel compiles just fine with OpenSSL1.0.1 versions, but there appears to have been a difference in the method of validation and installation of FIPS modules into a seperate modular directory, and is not located in the openssl/include files after build now

The stunnel configure script only looks for fips-1.0 as well , so my base assumption is might not be capable of handling FIPS-2.0 at this time.