The bio_st structure is private since 1.1.0 release. So one option is to check if the OPENSSL_VERSION >= 0x10100000 Tomas On Fri, 2022-03-25 at 18:33 -0600, Philip Prindeville wrote: > Hi, > > I was wondering if there was some sort of sentinel variable that > tells us if <openssl.h/bio.h> is exporting access to the bio_st > structure, or not. > > Thanks, > > -Philip > -- Tomáš Mráz, OpenSSL
