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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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44
meson.build
View file

@ -561,34 +561,42 @@ if get_option('debug-gui')
config_h.set10('HAVE_GTK3', dep_gtk.found()) config_h.set10('HAVE_GTK3', dep_gtk.found())
endif 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_cairo = dependency('cairo')
dep_glib = dependency('glib-2.0') 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) 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' ] debug_gui_sources = [ 'tools/libinput-debug-gui.c' ]
if dep_wayland_client.found() and dep_wayland_protocols.found() if have_gtk_wayland
wayland_scanner = find_program('wayland-scanner') dep_wayland_client = dependency('wayland-client', required : false)
wlproto_dir = dep_wayland_protocols.get_pkgconfig_variable('pkgdatadir') 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')
proto_name = 'pointer-constraints-unstable-v1' proto_name = 'pointer-constraints-unstable-v1'
input = files(wlproto_dir / 'unstable' / 'pointer-constraints' / '@0@.xml'.format(proto_name)) input = files(wlproto_dir / 'unstable' / 'pointer-constraints' / '@0@.xml'.format(proto_name))
wayland_headers = custom_target('@0@ client header'.format(proto_name), wayland_headers = custom_target('@0@ client header'.format(proto_name),
input: input, input: input,
output: '@0@-client-protocol.h'.format(proto_name), output: '@0@-client-protocol.h'.format(proto_name),
command: [wayland_scanner, 'client-header', '@INPUT@', '@OUTPUT@'], command: [wayland_scanner, 'client-header', '@INPUT@', '@OUTPUT@'],
) )
wayland_sources = custom_target('@0@ source'.format(proto_name), wayland_sources = custom_target('@0@ source'.format(proto_name),
input: input, input: input,
output: '@0@-protocol.c'.format(proto_name), output: '@0@-protocol.c'.format(proto_name),
command: [wayland_scanner, 'private-code', '@INPUT@', '@OUTPUT@'], command: [wayland_scanner, 'private-code', '@INPUT@', '@OUTPUT@'],
) )
debug_gui_sources += [ wayland_headers, wayland_sources ] debug_gui_sources += [ wayland_headers, wayland_sources ]
config_h.set10('HAVE_GTK_WAYLAND', true)
endif
endif endif
deps_debug_gui = [ deps_debug_gui = [

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

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