GtkDirectoryList Error building template

[gavr123456789]

There are Gtk-CRITICAL when run list3.c example.

sh-5.1$ ./a.out 

(a.out:33843): Gtk-CRITICAL **: 03:22:40.840: Error building template for list item: .:0:0: No function named `get_file_name`.

(a.out:33843): Gtk-CRITICAL **: 03:22:40.840: Error building template for list item: .:0:0: No function named `get_file_name`.

(a.out:33843): Gtk-CRITICAL **: 03:22:40.840: Error building template for list item: .:0:0: No function named `get_file_name`.

Compiled with gcc `pkg-config --cflags gtk4` c.c `pkg-config --libs gtk4`

GTK version: 4.2.1-1 Linux: Arch

[ToshioCP]

Gavr, Thank you for posting the issue.

Compile it with -Wl,--export-dynamic option, then the error won't happen.

• -Wl,\<option>: -Wl passes \<option> as an option to the linker.
• --export-dynamic: This is an option for the linker. The following is cited from the linker document. "When creating a dynamically linked executable, add all symbols to the dynamic symbol table. The dynamic symbol table is the set of symbols which are visible from dynamic objects at run time."

GtkBuilder builds the template at runtime. It refers to the symbol table to find the function get_file_name. So, the linker needs to add the symbol table to a.out. "-Wl,--export-dynamic! option makes it possible.

$ gcc -Wl,--export-dynamic `pkg-config --cflags gtk4` $1.c `pkg-config --libs gtk4`

There are a shell file comp in the misc directory. You can use it as well.

$ bash comp list3

If you want to use comp as a command:

$ mkdir $HOME/bin
$ cp comp $HOME/bin/comp
$ chmod +x $HOME/bin/comp

After re-login, you can compile it as follows as well.

$ comp list3

The file comp is used in section 24 to compile list3.c.

[gavr123456789]

Thanks, now it works, its really the best guide for GTK 4 now.
I think there should be a mention of this in section 24.

[ToshioCP]

Thank you for your suggestion. It is helpful to improve this tutorial. I've modified section 24 and put some explanation about -Wl,--export-dynamic option.