libesmtp 1.0.6-7 does not link to openssl

[SET via arch-general <arch-general@xxxxxxxxxxxxxxxxxxx>]

Hello,

I am having a weird issue with libesmtp : it does not use TLS, confirmed by 
wireshark sniffing.

The ASP repo was pulled, and here is the result of  ./configure --prefix=/usr :

*************************
*** libESMTP features ***
*************************
            --with-auth-plugin-dir: /usr/lib/esmtp-plugins
                      --with-lwres: no
                    --with-openssl: no
                 --enable-pthreads: yes
                     --enable-etrn: no
                     --enable-ntlm: no
                 --enable-chunking: yes
                     --enable-xusr: yes
                   --enable-nsauth: yes
                    --enable-debug: no
                    
After examining config.log, the conftest.c program, generated by configure, 
failed to compile :

#ifdef __cplusplus
extern "C"
#endif
char SSL_library_init ();
int
main ()
{
return SSL_library_init ();
  ;
  return 0;
}

By including <openssl/ssl.h> before int main(), conftest.c does compile.

Talking to an SMTP server without TLS is obviously not an option.

How can this be fixed ? A patch by the package maintainer ? Reporting to 
upstream ? (Seems to be fedora here)

Regards.