[vlc-devel] vlc3 : cannot link with libaccess_srt_plugin

Thomas Guillem thomas at gllm.fr
Fri Dec 8 10:22:40 CET 2017



On Fri, Dec 8, 2017, at 10:14, Justin Kim wrote:
> Hello,
> 
> I think it's a bug of SRT .pc file.
> In the file, a list of packages are defined in wrong field.
> 
> Although I sent a patch to SRT, I don't know when the next version is 
> released. Can I send a local patch in contrib?

Yes, you can

> 
> BR
> Justin
> 
> On 08/12/2017 3:08 AM, David Fuhrmann wrote:
> > Hello all,
> > 
> > I saw as well that the srt plugin does to link on macOS, for instance 
> > see here:
> > https://jenkins.videolan.org/job/vlc-nightly/job/vlc-nightly-macOS-contrib/537/console
> > 
> > Issue seems to be pkgconfig file creation: srt.pc contains the following 
> > libs line (the latter part, starting with gnutls, is merged from 
> > Libs.private by vlc):
> > 
> > Libs:  -L${libdir} -lsrt      gnutls iconv gmp nettle hogweed gmp nettle 
> > /usr/lib/libpthread.dylib
> > 
> > 
> > This is not a valid linking line of course, and it contains internal 
> > libs like hogweed. Is someone already checking how this can be fixed?
> > 
> > BR. David
> > 
> >> Am 04.12.2017 um 02:58 schrieb Justin Kim <justin.kim at collabora.com 
> >> <mailto:justin.kim at collabora.com>>:
> >>
> >> Hello,
> >>
> >> Let me try to check this problem more.
> >> I tested the following sequences;
> >>
> >>  $ cd <vlc>/contrib
> >>  $ mkdir native
> >>  $ cd native
> >>  $ ../bootstrap --enable-srt
> >>  $ make fetch-all
> >>  $ export PKG_CONFIG_LIBDIR=<somewhere>/pkgconfig
> >>  $ make
> >>
> >> Then, although this 'make' reported some linking errors, I fixed them 
> >> locally. After that, I could get 'contrib' stuffs.
> >>
> >>  $ cd <vlc>
> >>  $ ./bootstrap
> >>  $ ./configure --enable-srt
> >>  $ make
> >>
> >> Then, I could get vlc executable. The different thing is that I did 
> >> this build on archlinux and ubuntu.
> >>
> >> Can you tell me what is different from you did?
> >>
> >> BR,
> >> Justin
> >>
> >> On 04/12/2017 10:28 AM, Gilles Sabourin wrote:
> >>> Hello Justin,
> >>> I am using provided vlc toolchain. Vlc devloppers should have a 
> >>> closer look at Makefiles.
> >>> I can tell myself, and I have no time to investigate now.
> >>> Best,
> >>> Gilles
> >>> Le 4 déc. 2017, à 02:01, Justin Kim <justin.kim 
> >>> <mailto:<a>@collabora.com target=_blank>justin.kim <http://justin.kim 
> >>> <http://justin.kim/>>@collabora.com> a écrit:
> >>>    Hello,
> >>>    The linking error is pretty strange for me.
> >>>    Did you set PKG_CONFIG_LIBDIR to a proper pkgconfig directory?
> >>>    Maybe, in your case,
> >>>    /usr/lib/pkgages/BUILD/vlc-3.0.0/contrib/x86_64-suse-linux/lib/pkgconfig 
> >>> ?
> >>>    SRT plugin has dependencies on gnutls, nettle
> >>>    On 04/12/2017 2:11 AM, Gilles Sabourin wrote:
> >>>        Le dimanche 3 décembre 2017, 17:58:23 CET Gilles Sabourin a 
> >>> écrit :
> >>>            Le dimanche 3 décembre 2017, 11:22:32 CET Jean-Baptiste
> >>>            Kempf a écrit :
> >>>                Hello Gilles,
> >>>                What happens if you force -lstdc++ ?
> >>>                Best,
> >>>            Hello Jean-Baptitste,
> >>>            I have modified "Makefile.am <http://Makefile.am 
> >>> <http://makefile.am/>>" in
> >>>            ~/modules/access" this line :
> >>>            libaccess_srt_plugin_la_LDFLAGS = $(AM_LDFLAGS) -rpath
> >>>            '$(accessdir)'
> >>>            to :
> >>>            libaccess_srt_plugin_la_LDFLAGS = $(AM_LDFLAGS) -lstdc++ 
> >>> -rpath
> >>>            '$(accessdir)'
> >>>            and after a make, I've got fewer link errors, about nettle
> >>>            library entries
> >>>            missing (but nettle 3.3 is installed on my system) :
> >>>        [...]
> >>>        So long, so far, I've manually forced -lnettle into Makefile.am
> >>>        <http://Makefile.am <http://makefile.am/>>, and after a
> >>>        make, it is still complaining about gnutls :
> >>>        make[4]: Entering directory
> >>>        '/usr/src/packages/BUILD/vlc-3.0.0/modules'
> >>>        CCLDlibaccess_srt_plugin.la 
> >>> <http://libaccess_srt_plugin.la/><http://plugin.la <http://plugin.la/>>
> >>>        /usr/src/packages/BUILD/vlc-3.0.0/contrib/x86_64-suse-linux/lib/
> >>>        libsrt.a(hcrypt_ctx_tx.c.o): In function `hcryptCtx_Tx_Rekey':
> >>>        /usr/src/packages/BUILD/vlc-3.0.0/contrib/native/srt/haicrypt/hcrypt_ctx_tx.c:
> >>>        63: undefined reference to `gnutls_rnd'
> >>>        /usr/src/packages/BUILD/vlc-3.0.0/contrib/native/srt/haicrypt/hcrypt_ctx_tx.c:
> >>>        70: undefined reference to `gnutls_rnd'
> >>>        /usr/src/packages/BUILD/vlc-3.0.0/contrib/x86_64-suse-linux/lib/
> >>>        libsrt.a(hcrypt_ctx_tx.c.o): In function `hcryptCtx_Tx_Refresh':
> >>>        /usr/src/packages/BUILD/vlc-3.0.0/contrib/native/srt/haicrypt/hcrypt_ctx_tx.c:
> >>>        140: undefined reference to `gnutls_rnd'
> >>>        collect2: error: ld returned 1 exit status
> >>>        I've tried to add -lgnutls, but eh, one cannot win each time :
> >>>        this does not
> >>>        help...
> >>>        So this srt plugin has pretty much dependencies on stdc++ and
> >>>        nettle at
> >>>        least, and maybe gnutls...
> >>>        Best,
> >>>        Gilles SABOURIN
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