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meson.build: check gtk targets before building

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We have two different dependencies on Wayland: GTK support and the
wayland-protocols we use directly. If we have GTK support but
wayland-protocols is not installed at meson configure time, our build
fails.

To avoid having multiple ifdefs in the code, let's define two new ones:
HAVE_GTK_WAYLAND and HAVE_GTK_X11, both set if GTK supports that
particular target (from pkgconfig) and we have the other support
libraries we need.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2022-06-10 10:31:37 +10:00 • committed by José Expósito
parent 3542023996
commit 6a1bd5b0c9
2 changed files with 37 additions and 29 deletions
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12
meson.build
View file

@ -561,14 +561,20 @@ if get_option('debug-gui')
config_h.set10('HAVE_GTK3', dep_gtk.found())
endif
gtk_targets = dep_gtk.get_pkgconfig_variable('targets')
have_gtk_wayland = gtk_targets.contains('wayland')
have_gtk_x11 = gtk_targets.contains('x11')
dep_cairo = dependency('cairo')
dep_glib = dependency('glib-2.0')
dep_wayland_client = dependency('wayland-client', required : false)
dep_wayland_protocols = dependency('wayland-protocols', required : false)
dep_x11 = dependency('x11', required : false)
config_h.set10('HAVE_GTK_X11', have_gtk_x11 and dep_x11.found())
debug_gui_sources = [ 'tools/libinput-debug-gui.c' ]
if have_gtk_wayland
dep_wayland_client = dependency('wayland-client', required : false)
dep_wayland_protocols = dependency('wayland-protocols', required : false)
if dep_wayland_client.found() and dep_wayland_protocols.found()
wayland_scanner = find_program('wayland-scanner')
wlproto_dir = dep_wayland_protocols.get_pkgconfig_variable('pkgdatadir')
@ -589,6 +595,8 @@ if get_option('debug-gui')
)
debug_gui_sources += [ wayland_headers, wayland_sources ]
config_h.set10('HAVE_GTK_WAYLAND', true)
endif
endif
deps_debug_gui = [

22
tools/libinput-debug-gui.c
View file

@ -48,7 +48,7 @@
#include "shared.h"
#ifdef GDK_WINDOWING_WAYLAND
#if HAVE_GTK_WAYLAND
#include <wayland-client.h>
#include "pointer-constraints-unstable-v1-client-protocol.h"
#if HAVE_GTK4
@ -58,7 +58,7 @@
#endif
#endif
#ifdef GDK_WINDOWING_X11
#if HAVE_GTK_X11
#include <X11/X.h>
#include <X11/Xlib.h>
#if HAVE_GTK4
@ -120,7 +120,7 @@ struct window {
struct {
bool locked;
#ifdef GDK_WINDOWING_WAYLAND
#if HAVE_GTK_WAYLAND
struct zwp_pointer_constraints_v1 *wayland_pointer_constraints;
struct zwp_locked_pointer_v1 *wayland_locked_pointer;
#endif
@ -207,7 +207,7 @@ struct window {
struct libinput_device *devices[50];
};
#ifdef GDK_WINDOWING_WAYLAND
#if HAVE_GTK_WAYLAND
static void
wayland_registry_global(void *data,
struct wl_registry *registry,
@ -297,9 +297,9 @@ backend_is_wayland(void)
{
return GDK_IS_WAYLAND_DISPLAY(gdk_display_get_default());
}
#endif /* GDK_WINDOWING_WAYLAND */
#endif /* HAVE_GTK_WAYLAND */
#ifdef GDK_WINDOWING_X11
#if HAVE_GTK_X11
static bool
x_lock_pointer(struct window *w)
{
@ -342,19 +342,19 @@ backend_is_x11(void)
{
return GDK_IS_X11_DISPLAY(gdk_display_get_default());
}
#endif /* GDK_WINDOWING_X11 */
#endif /* HAVE_GTK_X11 */
static bool
window_lock_pointer(struct window *w)
{
w->lock_pointer.locked = false;
#ifdef GDK_WINDOWING_WAYLAND
#if HAVE_GTK_WAYLAND
if (backend_is_wayland())
w->lock_pointer.locked = wayland_lock_pointer(w);
#endif
#ifdef GDK_WINDOWING_X11
#if HAVE_GTK_X11
if (backend_is_x11())
w->lock_pointer.locked = x_lock_pointer(w);
#endif
@ -370,12 +370,12 @@ window_unlock_pointer(struct window *w)
w->lock_pointer.locked = false;
#ifdef GDK_WINDOWING_WAYLAND
#if HAVE_GTK_WAYLAND
if (backend_is_wayland())
wayland_unlock_pointer(w);
#endif
#ifdef GDK_WINDOWING_X11
#if HAVE_GTK_X11
if (backend_is_x11())
x_unlock_pointer(w);
#endif