On Sat, Nov 11, 2023 at 02:22:55PM +0100, Daniel Sahlberg wrote:
> Hi,
>
> I'm separating this out to a new thread since it doesn't relate to the
> upcoming release, but I'm doing the work trying to reproduce Nathan's
> problem.
>
> I've installed Debian Bullseye (on Hyper-V, but that shouldn't matter I
> think). When I try to do the build, I end up having trouble building neon.
> The error message is "could not find library containing SSL_library_init".
> I have checked that the package libssl-dev is installed (with version
> 1.1.1w-0+deb11u1).
>
> I've tried a very simple file:
> #include <openssl/ssl.h>
> int main(void)
> {
> SSL_library_init();
> return 0;
> }
>
> $ gcc -lssl -lcrypto -DOPENSSL_API_COMPAT=0x10000000L ssl.c
> [..] undefined reference to OPENSSL_init_ssl [...]
>
> This makes sense, since ssl.h defines SSL_library_init() as
> OPENSSL_init_ssl(0, NULL) (protected by an #if checking OPENSSL_API_COMPAT
> < 0x10100000L).
>
This function first appeared in OpenSSL 1.1.0.
Which means trying to call it on earlier version of OpenSSL is an
expected failure.
> I've tried changing the order of the libraries (-lcrypto -lssl) with the
> same result.
>
> I'm sure I'm missing something simple but I've spent the better half of a
> day figuring out what.
If neon requests OPENSSL_API_COMPAT 0x10000000L and also calls
OPENSSL_init_ssl() then that is a bug in neon.
