Trying to compile a panel plugin

[Matthew Brush]

On 13-05-30 11:22 AM, Jeroen van Aart wrote:
> Hello (first post),
>
> I am converting a gnome panel applet to xfce panel plugin. I have so far
> removed the few gnome specific parts in the source and replaced them
> with xfce specific source as appropriate.
>
> I created makefile.am and configure.ac files using templates such as the
> weather plugin and the example plugin. However I am unsuccessful in
> getting it compiled properly. I am probably missing something obvious,
> but I double checked the examples with my own files and find no obvious
> problems.
>
> I have attached the appropriate files as well as output of the errors in
> the hope someone has an idea. I don't think the problem is in the actual
> source, but I can add some of that later if necessary.
>
>
> Errors while compiling:
>
>
> make  all-recursive
> make[1]: Entering directory `/source/my_example_xfce'
> Making all in panel-plugin
> make[2]: Entering directory `/source/my_example_xfce/panel-plugin'
> gcc -DHAVE_CONFIG_H -I. -I.. -I..
> -DTHEMESDIR=\"/usr/local/share/xfce4/my_example/icons\"
> -DPACKAGE_LOCALE_DIR=\"/usr/local/share/locale\"
> -DG_LOG_DOMAIN=\"my_example\" -DNDEBUG -pthread
> -I/usr/include/xfce4/libxfce4panel-1.0 -I/usr/include/gtk-2.0
> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
> -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0
> -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0
> -I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/
> -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12
> -I/usr/include/xfce4   -pthread -I/usr/include/gtk-2.0
> -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/
> -I/usr/include/cairo -I/usr/include/pango-1.0
> -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/glib-2.0
> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/pixman-1
> -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/atk-1.0
> -I/usr/include/xfce4   -I/usr/include/glib-2.0
> -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4
> -pthread -I/usr/include/gtk-2.0
> -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/atk-1.0
> -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0
> -I/usr/include/pango-1.0 -I/usr/include/gio-unix-2.0/
> -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
> -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12
>                                                         -g -O2 -MT
> xfce4_my_example_plugin-my_example.o -MD -MP -MF
> .deps/xfce4_my_example_plugin-my_example.Tpo -c -o
> xfce4_my_example_plugin-my_example.o `test -f 'my_example.c' || echo
> './'`my_example.c
> my_example.c:25:25: warning: ‘struct Example_Data’ declared inside
> parameter list [enabled by default]
> my_example.c:25:25: warning: its scope is only this definition or
> declaration, which is probably not what you want [enabled by default]
> my_example.c: In function ‘setdefaults’:
> my_example.c:28:3: warning: incompatible implicit declaration of
> built-in function ‘strncpy’ [enabled by default]
> my_example.c:28:21: error: dereferencing pointer to incomplete type
> my_example.c:28:45: warning: incompatible implicit declaration of
> built-in function ‘strlen’ [enabled by default]
> my_example.c:28:3: warning: passing argument 1 of ‘strlen’ makes pointer
> from integer without a cast [enabled by default]
> my_example.c:28:3: note: expected ‘const char *’ but argument is of type
> ‘int’
> my_example.c:28:3: warning: passing argument 2 of ‘strncpy’ makes
> pointer from integer without a cast [enabled by default]
> my_example.c:28:3: note: expected ‘const char *’ but argument is of type
> ‘int’
> my_example.c:30:21: error: dereferencing pointer to incomplete type
> my_example.c:30:42: error: dereferencing pointer to incomplete type
> my_example.c:30:67: error: dereferencing pointer to incomplete type
> my_example.c:31:3: warning: incompatible implicit declaration of
> built-in function ‘strncat’ [enabled by default]
> my_example.c:31:21: error: dereferencing pointer to incomplete type
> my_example.c:31:32: error: ‘SIGFILE’ undeclared (first use in this
> function)
>
> SIGFILE is one of the defines in my header files. Then it goes on as if
> it never read my header files with all the declarations.
>
> Last bit:
>
> my_example.c:248:17: error: unknown type name ‘XfcePanelPlugin’
> my_example.c:248:42: error: unknown type name ‘GtkWidget’
> my_example.c:248:60: error: unknown type name ‘GtkWidget’
> make[2]: *** [xfce4_my_example_plugin-example.o] Error 1
> make[2]: Leaving directory `/source/my_example_xfce/panel-plugin'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/source/my_example_xfce'
> make: *** [all] Error 2
>
> See attachment for Makefile.am, configure.ac and
> panel-plugin/Makefile.am. I generate the makefiles and configure files
> using xdt-autogen.
>

Hi,

If you put the full code online I can double-check for you. It's hard to 
debug unknown code through a little peep-hole :)

Cheers,
Matthew Brush