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Re: [Denemo-devel] The missing regex in mxe build
From: |
Richard Shann |
Subject: |
Re: [Denemo-devel] The missing regex in mxe build |
Date: |
Mon, 18 Feb 2013 10:42:42 +0000 |
On Sun, 2013-02-17 at 13:51 -0600, Jeremiah Benham wrote:
> For me it was in the usr/i686*/bin dir. I made a symbolic link into
> usr/bin. This allowed me to proceed.
Well, I haven't got that working, but I think I have discovered that the
code modifications needed to link in the pdf backend statically are
actually very small. Below is the entire ev-module.c file, in which
there are just two small changes indicated by #if 0 #else #endif
What these do is to skip the loading of the dll and instead expect the
function register_evince_backend() to be statically linked (it is
defined in backend/pdf/ev-poppler.cc).
If I try to make evince with this version of ev-module.c it fails
because it tries to build the executable evince (which we don't need).
This is expected, since it will not have libpdfdocument.a on its link
line.
I tried to make it not build the executable, but I can't find the right
way to adjust the Makefile stuff.
I wonder if you could take this version of ev-module.c and substitute it
in the libdocument directory and then adjust the make system so that it
will build evince? (Either disabling the build of the executable, or
adding backend/pdf/xxxx.o to the object files included in libevince.
I am not really expecting that this will then be the job done - I
imagine there may be a few wrinkles, but with a make system doing the
right thing I am fairly confident we can build a static evince.
Richard
Below is ev-module.c cut and pasted, but I attach it as well as that is
better for file transmission.
/*
* ev-module.c
* This file is part of Evince
*
* Copyright (C) 2005 - Paolo Maggi
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/* This is a modified version of ephy-module.c from Epiphany source
code.
* Here the original copyright assignment:
*
* Copyright (C) 2003 Marco Pesenti Gritti
* Copyright (C) 2003, 2004 Christian Persch
*
*/
/*
* Modified by the gedit Team, 2005. See the AUTHORS file for a
* list of people on the gedit Team.
* See the ChangeLog files for a list of changes.
*
* $Id: gedit-module.c 5367 2006-12-17 14:29:49Z pborelli $
*/
/* Modified by evince team */
#include "config.h"
#include "ev-module.h"
#include <gmodule.h>
typedef struct _EvModuleClass EvModuleClass;
struct _EvModuleClass {
GTypeModuleClass parent_class;
};
struct _EvModule {
GTypeModule parent_instance;
GModule *library;
gboolean resident;
gchar *path;
GType type;
};
typedef GType (*EvModuleRegisterFunc) (GTypeModule *);
static void ev_module_init (EvModule *action);
static void ev_module_class_init (EvModuleClass *class);
G_DEFINE_TYPE (EvModule, ev_module, G_TYPE_TYPE_MODULE)
static gboolean
ev_module_load (GTypeModule *gmodule)
{
EvModule *module = EV_MODULE (gmodule);
EvModuleRegisterFunc register_func;
#if 0
module->library = g_module_open (module->path, 0);
if (!module->library) {
g_warning ("%s", g_module_error ());
return FALSE;
}
/* extract symbols from the lib */
if (!g_module_symbol (module->library,
"register_evince_backend",
(void *) ®ister_func)) {
g_warning ("%s", g_module_error ());
g_module_close (module->library);
return FALSE;
}
/* symbol can still be NULL even though g_module_symbol
* returned TRUE */
if (!register_func) {
g_warning ("Symbol 'register_evince_backend' should not
be NULL");
g_module_close (module->library);
return FALSE;
}
#else
extern GType register_evince_backend (GTypeModule *module);
register_func = register_evince_backend;
#endif
module->type = register_func (gmodule);
if (module->type == 0) {
g_warning ("Invalid evince backend contained by module %
s", module->path);
return FALSE;
}
#if 0
if (module->resident)
g_module_make_resident (module->library);
#endif
return TRUE;
}
static void
ev_module_unload (GTypeModule *gmodule)
{
#if 0
EvModule *module = EV_MODULE (gmodule);
g_module_close (module->library);
module->library = NULL;
module->type = 0;
#else
g_warning("Nothing done for ev_module_unload");
#endif
}
const gchar *
ev_module_get_path (EvModule *module)
{
g_return_val_if_fail (EV_IS_MODULE (module), NULL);
return module->path;
}
GObject *
ev_module_new_object (EvModule *module)
{
g_return_val_if_fail (EV_IS_MODULE (module), NULL);
if (module->type == 0)
return NULL;
return g_object_new (module->type, NULL);
}
GType
ev_module_get_object_type (EvModule *module)
{
g_return_val_if_fail (EV_IS_MODULE (module), 0);
return module->type;
}
static void
ev_module_init (EvModule *module)
{
}
static void
ev_module_finalize (GObject *object)
{
EvModule *module = EV_MODULE (object);
g_free (module->path);
G_OBJECT_CLASS (ev_module_parent_class)->finalize (object);
}
static void
ev_module_class_init (EvModuleClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (class);
object_class->finalize = ev_module_finalize;
module_class->load = ev_module_load;
module_class->unload = ev_module_unload;
}
EvModule *
ev_module_new (const gchar *path,
gboolean resident)
{
EvModule *result;
g_return_val_if_fail (path != NULL && path[0] != '\0', NULL);
result = g_object_new (EV_TYPE_MODULE, NULL);
g_type_module_set_name (G_TYPE_MODULE (result), path);
result->path = g_strdup (path);
result->resident = resident;
return result;
}
>
> Jeremiah
>
> On Feb 17, 2013 1:10 PM, "Richard Shann" <address@hidden>
> wrote:
> On Sun, 2013-02-17 at 17:09 +0000, Richard Shann wrote:
> > On Sun, 2013-02-17 at 08:03 -0600, Jeremiah Benham wrote:
> > > I am sure we will encounter an issue or two. Theoretically
> though, we
> > > should only have to create such a system like this once.
> Then we will
> > > only have to occasionally add update the dependencies now
> and then. I
> > > think if we are going to do dynamic, we should fork our
> own mxe on
> > > github. We can create a sed script to replace
> --disable-shared
> > > --enable-shared and --enable-static to --disable-static on
> all the
> > > src/*.mk.
> > Well, of the two routes (hacking evince or converting mxe to
> build dlls)
> > I feel more confident about the first and I suspect you
> would be better
> > at the second. The advantage of the first is that we would
> get mxe
> > support as the libraries change over time, the disadvantage
> would be we
> > would be on our own with any changes we might want to follow
> in evince.
> > I guess we should push ahead with seeing which is feasible.
> I'll look
> > some more at evince - in principle I just need to replace
> the g*module*
> > stuff with stuff to point directly at the ev-poppler.cc
> code, bringing
> > that in to directly linked sources.
>
> Well, I fell at the first hurdle. I wanted to build evince on
> Debian
> first to trace what it did, and it would not configure for
> lack of
> glib-compile-schemas. So I built glib and that generated
> glib-compile-schemas (it isn't present on my Debian box) and I
> put it in
> the path, but it still says it can't find it... sigh!
>
> Richard
>
>
ev-module.c
Description: Text Data
- Re: [Denemo-devel] The missing regex in mxe build, (continued)
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/14
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/15
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/15
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/15
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/16
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/17
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/17
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/17
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/17
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/17
- Re: [Denemo-devel] The missing regex in mxe build,
Richard Shann <=
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/18
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/18
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/18
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/18
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/19
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/19
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/19
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/19
- Re: [Denemo-devel] The missing regex in mxe build, Richard Shann, 2013/02/19
- Re: [Denemo-devel] The missing regex in mxe build, Jeremiah Benham, 2013/02/19