CODEWITHSUNDEEP
clinuxdebiangtkgtk3
MasFlam
MasFlam

Reputation: 55

Compiling GTK 3 apps on Debian

I'm trying to compile a GTK program on my Debian desktop. I installed libgtk-3-dev and all of that, but when I go to compile the program, I get this error:

$ gcc -o client client.c `pkg-config --cflags --libs glib-2.0`
client.c:6:10: fatal error: gtk/gtk.h: No such file or directory
    6 | #include <gtk/gtk.h>
      |          ^~~~~~~~~~~
compilation terminated.

All of the GTK headers actually seem to be in /usr/include/gtk-3.0, but even if I include <gtk-3.0/gtk/gtk.h> I get errors, since the files inside include other GTK headers as if they were in a normal include path. Then if I compile with -I/usr/include/gtk-3.0 I still get errors, this time about glib. Well, glib files are inside /usr/include/glib-2.0 and it's the same problem as before. Finally, if I compile with -I/usr/include/gtk-3.0 -I/usr/include/glib-2.0, I this time get this error:

$ gcc -o client -I/usr/include/gtk-3.0 -I/usr/include/glib-2.0 client.c `pkg-config --cflags $ --libs glib-2.0`
In file included from /usr/include/gtk-3.0/gdk/gdkapplaunchcontext.h:30,
                 from /usr/include/gtk-3.0/gdk/gdk.h:32,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from client.c:6:
/usr/include/gtk-3.0/gdk/gdktypes.h:35:10: fatal error: pango/pango.h: No such file or directory
   35 | #include <pango/pango.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.

Seems like any combination of compile flags I choose, I get some sort of error, all caused by Debian putting the headers in a non-standard subdirectory. This is not me messing with them, this is what apt installs for me.

Upvotes: 0

Views: 935

Answers (1)

ekalin
ekalin

Reputation: 1012

You are asking pkg-config for glib, you must ask pkg-config for the GTK+ library:

gcc -o client client.c `pkg-config --cflags --libs gtk+-3.0`

You can keep glib-2.0 in the command line, but since GTK+ depends on glib, it's already included.

Upvotes: 2

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