Cela fait maintenant 2heures que je jongles avec les dépendances...
Arriver au stade de la compilation de tilp2 (on se dit enfin chouette le ./configure est passé) on tombe sur une erreur incompréhensible. Je pense que plusieurs personnes ont déjà dûes avoir ce genre d'erreur:

In file included from /usr/include/gtk-2.0/gdk/gdk.h:32,
                 from /usr/include/gtk-2.0/gtk/gtk.h:32,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gdk/gdkapplaunchcontext.h:30:21: error: gio/gio.h: No such file or directory
In file included from /usr/include/gtk-2.0/gdk/gdk.h:32,
                 from /usr/include/gtk-2.0/gtk/gtk.h:32,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gdk/gdkapplaunchcontext.h:48: error: expected specifier-qualifier-list before ‘GAppLaunchContext’
/usr/include/gtk-2.0/gdk/gdkapplaunchcontext.h:55: error: expected specifier-qualifier-list before ‘GAppLaunchContextClass’
/usr/include/gtk-2.0/gdk/gdkapplaunchcontext.h:70: error: expected declaration specifiers or ‘...’ before ‘GIcon’
In file included from /usr/include/gtk-2.0/gdk-pixbuf/gdk-pixbuf.h:35,
                 from /usr/include/gtk-2.0/gdk/gdkpixbuf.h:37,
                 from /usr/include/gtk-2.0/gdk/gdkcairo.h:28,
                 from /usr/include/gtk-2.0/gdk/gdk.h:33,
                 from /usr/include/gtk-2.0/gtk/gtk.h:32,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gdk-pixbuf/gdk-pixbuf-core.h:222: error: expected ‘)’ before ‘*’ token
/usr/include/gtk-2.0/gdk-pixbuf/gdk-pixbuf-core.h:226: error: expected ‘)’ before ‘*’ token
/usr/include/gtk-2.0/gdk-pixbuf/gdk-pixbuf-core.h:234: error: expected declaration specifiers or ‘...’ before ‘GOutputStream’
/usr/include/gtk-2.0/gdk-pixbuf/gdk-pixbuf-core.h:236: error: expected declaration specifiers or ‘...’ before ‘GCancellable’
In file included from /usr/include/gtk-2.0/gtk/gtk.h:38,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkaction.h:159: error: expected declaration specifiers or ‘...’ before ‘GIcon’
/usr/include/gtk-2.0/gtk/gtkaction.h:160: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
In file included from /usr/include/gtk-2.0/gtk/gtkbutton.h:36,
                 from /usr/include/gtk-2.0/gtk/gtk.h:52,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkimage.h:102: error: expected specifier-qualifier-list before ‘GIcon’
/usr/include/gtk-2.0/gtk/gtkimage.h:178: error: expected ‘)’ before ‘*’ token
/usr/include/gtk-2.0/gtk/gtkimage.h:204: error: expected declaration specifiers or ‘...’ before ‘GIcon’
/usr/include/gtk-2.0/gtk/gtkimage.h:229: error: expected declaration specifiers or ‘...’ before ‘GIcon’
In file included from /usr/include/gtk-2.0/gtk/gtktreeview.h:31,
                 from /usr/include/gtk-2.0/gtk/gtkcombobox.h:29,
                 from /usr/include/gtk-2.0/gtk/gtk.h:71,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkentry.h:251: error: expected declaration specifiers or ‘...’ before ‘GIcon’
/usr/include/gtk-2.0/gtk/gtkentry.h:260: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
In file included from /usr/include/gtk-2.0/gtk/gtk.h:86,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:140: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:142: error: expected declaration specifiers or ‘...’ before ‘GFile’
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:145: error: expected declaration specifiers or ‘...’ before ‘GFile’
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:148: error: expected declaration specifiers or ‘...’ before ‘GFile’
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:151: error: expected declaration specifiers or ‘...’ before ‘GFile’
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:153: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
/usr/include/gtk-2.0/gtk/gtkfilechooser.h:169: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
In file included from /usr/include/gtk-2.0/gtk/gtk.h:106,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkicontheme.h:155: error: expected declaration specifiers or ‘...’ before ‘GIcon’
In file included from /usr/include/gtk-2.0/gtk/gtk.h:129,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkmountoperation.h:49: error: expected specifier-qualifier-list before ‘GMountOperation’
/usr/include/gtk-2.0/gtk/gtkmountoperation.h:56: error: expected specifier-qualifier-list before ‘GMountOperationClass’
/usr/include/gtk-2.0/gtk/gtkmountoperation.h:67: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
In file included from /usr/include/gtk-2.0/gtk/gtk.h:170,
                 from dboxes.h:4,
                 from tilp_calcs.c:37:
/usr/include/gtk-2.0/gtk/gtkstatusicon.h:87: error: expected ‘)’ before ‘*’ token
/usr/include/gtk-2.0/gtk/gtkstatusicon.h:98: error: expected declaration specifiers or ‘...’ before ‘GIcon’
/usr/include/gtk-2.0/gtk/gtkstatusicon.h:105: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
make[2]: *** [tilp-tilp_calcs.o] Error 1
make[2]: Leaving directory `/home/geogeo/Desktop/NSpire/tilp2-1.13/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/geogeo/Desktop/NSpire/tilp2-1.13'
make: *** [all] Error 2

gio.h est pourtant dans /usr/include/glib-2.0/gio. Pourquoi n'arrive-t'il pas à la trouver ?