[vlc-devel] Re: configure patch: detecting gnutls

[Torsten Spindler]

On Sat, 2005-04-16 at 22:00, Rémi Denis-Courmont wrote:
> Le Samedi 16 Avril 2005 19:48, Torsten Spindler a écrit :
> > when trying to build vlc with gnutls/ssl support on Fedora Core 2 I
> > got the message that gnutls_certificate_verify_peers2 was not found
> > even when it was there. Adding -lz to the gnutls libraries solved it,
> > patch is attached.
> 
> Err, I don't understand how the patch would work - it doesn't add -lz to 
> the gnutls plugin link flags !? If the gnutls plugin compiles without 
> -lz there's no reason why the configure check would need -lz either.
> 
> There's something wrong there.

I checked src/misc/tls.c and there is no reference to 
gnutls_certificate_verify_peers2
so there is no problem during compile. 

The check for this function is in configure.ac:

  AC_CHECK_HEADER(gcrypt.h,
    [AC_CHECK_LIB(gcrypt, gcry_control,
      [AC_CHECK_HEADER(gnutls/gnutls.h,
        [AC_CHECK_LIB(gnutls, gnutls_certificate_verify_peers2,
          [have_gnutls="yes"],[old_gnutls="yes"], ${gnutls_LIBS})])],,
     ${gcrypt_LIBS})])

Besides adding -lz to the libraries used as in the patch I sent I have
no idea how to rewrite this check.

Bye,
Torsten

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