Re: Introducing emacs-webkit and more thoughts on Emacs rendering (was Rethinking the design of xwidgets)

[Jean Louis]

I have failed shamelessly.

Can it be to some outdated stuff on my system?

git clone https://github.com/akirakyle/emacs-webkit.git
Cloning into 'emacs-webkit'...
remote: Enumerating objects: 160, done.        
remote: Counting objects: 100% (160/160), done.        
remote: Compressing objects: 100% (54/54), done.        
remote: Total 160 (delta 104), reused 160 (delta 104), pack-reused 0        
Receiving objects: 100% (160/160), 2.35 MiB | 219.00 KiB/s, done.
Resolving deltas: 100% (104/104), done.
~/Programming/git $ cd emacs-webkit/ 
~/Programming/git/emacs-webkit $ ls
LICENSE     default.nix                hints.css       script.js  webkit-ace.el 
     webkit.el
Makefile    emacs-module.h             hints.js        style.css  
webkit-history.el  
README.org  evil-collection-webkit.el  screencast.gif  tests.el   
webkit-module.c    
~/Programming/git/emacs-webkit $ make
cc -shared -std=c99 -Wall -Wextra -Wno-unused-parameter -O3 -fpic  `pkg-config 
--cflags gtk+-3.0 webkit2gtk-4.0 --libs webkit2gtk-4.0` -o webkit-module.so 
webkit-module.c
webkit-module.c: In function ‘copy_string_contents’:
webkit-module.c:47:13: warning: implicit declaration of function ‘malloc’ 
[-Wimplicit-function-declaration]
   *buffer = malloc ((size_t) buffer_size);
             ^~~~~~
webkit-module.c:47:13: warning: incompatible implicit declaration of built-in 
function ‘malloc’
webkit-module.c:47:13: note: include ‘<stdlib.h>’ or provide a declaration of 
‘malloc’
webkit-module.c:57:7: warning: implicit declaration of function ‘free’ 
[-Wimplicit-function-declaration]
       free (*buffer);
       ^~~~
webkit-module.c:57:7: warning: incompatible implicit declaration of built-in 
function ‘free’
webkit-module.c:57:7: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_get_title’:
webkit-module.c:134:46: warning: implicit declaration of function ‘strlen’ 
[-Wimplicit-function-declaration]
         return env->make_string (env, title, strlen (title));
                                              ^~~~~~
webkit-module.c:134:46: warning: incompatible implicit declaration of built-in 
function ‘strlen’
webkit-module.c:134:46: note: include ‘<string.h>’ or provide a declaration of 
‘strlen’
webkit-module.c: In function ‘webkit_get_uri’:
webkit-module.c:145:26: warning: implicit declaration of function 
‘webkit_uri_for_display’ [-Wimplicit-function-declaration]
       const gchar *uri = webkit_uri_for_display (webkit_web_view_get_uri
                          ^~~~~~~~~~~~~~~~~~~~~~
webkit-module.c:145:26: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
webkit-module.c:147:42: warning: incompatible implicit declaration of built-in 
function ‘strlen’
       return env->make_string (env, uri, strlen (uri));
                                          ^~~~~~
webkit-module.c:147:42: note: include ‘<string.h>’ or provide a declaration of 
‘strlen’
webkit-module.c: In function ‘webkit_load_uri’:
webkit-module.c:161:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (uri);
   ^~~~
webkit-module.c:161:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_search’:
webkit-module.c:221:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (text);
   ^~~~
webkit-module.c:221:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘send_to_lisp’:
webkit-module.c:336:41: warning: incompatible implicit declaration of built-in 
function ‘strlen’
       || rio_writen (c->fd, (void *)id, strlen (id)+1) < 0
                                         ^~~~~~
webkit-module.c:336:41: note: include ‘<string.h>’ or provide a declaration of 
‘strlen’
webkit-module.c: In function ‘webkit_js_finished’:
webkit-module.c:360:3: error: unknown type name ‘JSCValue’
   JSCValue *value = webkit_javascript_result_get_js_value (js_result);
   ^~~~~~~~
webkit-module.c:360:21: warning: implicit declaration of function 
‘webkit_javascript_result_get_js_value’ [-Wimplicit-function-declaration]
   JSCValue *value = webkit_javascript_result_get_js_value (js_result);
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
webkit-module.c:360:21: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
webkit-module.c:361:17: warning: implicit declaration of function 
‘jsc_value_to_json’ [-Wimplicit-function-declaration]
   gchar *json = jsc_value_to_json (value, 1);
                 ^~~~~~~~~~~~~~~~~
webkit-module.c:361:17: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
webkit-module.c:362:3: error: unknown type name ‘JSCException’
   JSCException *exception =
   ^~~~~~~~~~~~
webkit-module.c:363:5: warning: implicit declaration of function 
‘jsc_context_get_exception’ [-Wimplicit-function-declaration]
     jsc_context_get_exception (jsc_value_get_context (value));
     ^~~~~~~~~~~~~~~~~~~~~~~~~
webkit-module.c:363:32: warning: implicit declaration of function 
‘jsc_value_get_context’ [-Wimplicit-function-declaration]
     jsc_context_get_exception (jsc_value_get_context (value));
                                ^~~~~~~~~~~~~~~~~~~~~
webkit-module.c:363:5: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
     jsc_context_get_exception (jsc_value_get_context (value));
     ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/glib-2.0/glib.h:62:0,
                 from /usr/include/gtk-3.0/gdk/gdkconfig.h:13,
                 from /usr/include/gtk-3.0/gdk/gdk.h:30,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from webkit-module.c:3:
webkit-module.c:366:16: warning: implicit declaration of function 
‘jsc_exception_get_message’ [-Wimplicit-function-declaration]
                jsc_exception_get_message (exception));
                ^
/usr/include/glib-2.0/glib/gmessages.h:336:32: note: in definition of macro 
‘g_warning’
                                __VA_ARGS__)
                                ^~~~~~~~~~~
webkit-module.c:365:16: warning: format ‘%s’ expects argument of type ‘char *’, 
but argument 4 has type ‘int’ [-Wformat=]
     g_warning ("Error running javascript: %s",
                ^
/usr/include/glib-2.0/glib/gmessages.h:336:32: note: in definition of macro 
‘g_warning’
                                __VA_ARGS__)
                                ^~~~~~~~~~~
webkit-module.c:373:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (cb->id);
   ^~~~
webkit-module.c:373:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_execute_js’:
webkit-module.c:390:26: warning: incompatible implicit declaration of built-in 
function ‘malloc’
           Callback *cb = malloc (sizeof (Callback));
                          ^~~~~~
webkit-module.c:390:26: note: include ‘<stdlib.h>’ or provide a declaration of 
‘malloc’
webkit-module.c:403:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (script);
   ^~~~
webkit-module.c:403:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_add_user_style’:
webkit-module.c:430:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (style);
   ^~~~
webkit-module.c:430:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_add_user_script’:
webkit-module.c:472:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (script);
   ^~~~
webkit-module.c:472:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_script_message_cb’:
webkit-module.c:501:3: error: unknown type name ‘JSCValue’
   JSCValue *value = webkit_javascript_result_get_js_value (js_result);
   ^~~~~~~~
webkit-module.c:501:21: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
   JSCValue *value = webkit_javascript_result_get_js_value (js_result);
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
webkit-module.c:502:17: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
   gchar *json = jsc_value_to_json (value, 1);
                 ^~~~~~~~~~~~~~~~~
webkit-module.c:503:3: error: unknown type name ‘JSCException’
   JSCException *exception =
   ^~~~~~~~~~~~
webkit-module.c:504:5: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
     jsc_context_get_exception (jsc_value_get_context (value));
     ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/glib-2.0/glib.h:62:0,
                 from /usr/include/gtk-3.0/gdk/gdkconfig.h:13,
                 from /usr/include/gtk-3.0/gdk/gdk.h:30,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from webkit-module.c:3:
webkit-module.c:506:16: warning: format ‘%s’ expects argument of type ‘char *’, 
but argument 4 has type ‘int’ [-Wformat=]
     g_warning ("Error in javascript message recieve: %s",
                ^
/usr/include/glib-2.0/glib/gmessages.h:336:32: note: in definition of macro 
‘g_warning’
                                __VA_ARGS__)
                                ^~~~~~~~~~~
webkit-module.c: In function ‘webkit_register_script_message’:
webkit-module.c:537:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (name);
   ^~~~
webkit-module.c:537:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_unregister_script_message’:
webkit-module.c:559:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free (name);
   ^~~~
webkit-module.c:559:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webview_notify_uri’:
webkit-module.c:612:22: warning: initialization makes pointer from integer 
without a cast [-Wint-conversion]
   const gchar *uri = webkit_uri_for_display (webkit_web_view_get_uri 
(webview));
                      ^~~~~~~~~~~~~~~~~~~~~~
webkit-module.c: In function ‘client_free’:
webkit-module.c:902:3: warning: incompatible implicit declaration of built-in 
function ‘free’
   free(c);
   ^~~~
webkit-module.c:902:3: note: include ‘<stdlib.h>’ or provide a declaration of 
‘free’
webkit-module.c: In function ‘webkit_new’:
webkit-module.c:920:13: warning: implicit declaration of function ‘calloc’ 
[-Wimplicit-function-declaration]
   if (!(c = calloc (1, sizeof (Client))))
             ^~~~~~
webkit-module.c:920:13: warning: incompatible implicit declaration of built-in 
function ‘calloc’
webkit-module.c:920:13: note: include ‘<stdlib.h>’ or provide a declaration of 
‘calloc’
webkit-module.c:963:46: warning: incompatible implicit declaration of built-in 
function ‘strlen’
              env->make_string (env, err_msg, strlen (err_msg)));
                                              ^~~~~~
webkit-module.c:963:46: note: include ‘<string.h>’ or provide a declaration of 
‘strlen’
make: *** [Makefile:10: webkit-module.so] Error 1
~/Programming/git/emacs-webkit $