opensslconf.h not used

[bencemali]

Liboqs uses openssl flags like OPENSSL_NO_STDIO, but does not use openssl's opensslconf.h used for publicizing these flags. In src/common/common.h or other files something like this could be added:

#ifdef OQS_USE_OPENSSL
#include <openssl/opensslconf.h>
#endif

[baentsch]

That's an interesting and apparently --from a code integrity/testing perspective unfortunately-- accurate observation: Thanks, @bencemali for making us aware of this!

Would you care to contribute this fix via PR? Are there other instances of such "never true" code paths? Looks like a (different) repeat of https://github.com/orgs/open-quantum-safe/discussions/2038.

[bencemali]

@baentsch I can look into it a bit further then open a pr