diff --git a/include/wlr/api.h b/include/wlr/api.h
new file mode 100644
index 000000000..1b7e45676
--- /dev/null
+++ b/include/wlr/api.h
@@ -0,0 +1,20 @@
+#ifndef WLR_API_H
+#define WLR_API_H
+
+#ifndef WLR_IMPLEMENTATION
+
+#if __STDC_VERSION__ >= 202311L
+#define WLR_DEPRECATED(msg) [[deprecated(msg)]]
+#elif defined(__GNUC__)
+#define WLR_DEPRECATED(msg) __attribute__((deprecated(msg)))
+#else
+#define WLR_DEPRECATED(msg)
+#endif
+
+#else
+
+#define WLR_DEPRECATED(msg)
+
+#endif
+
+#endif
diff --git a/include/wlr/types/wlr_fullscreen_shell_v1.h b/include/wlr/types/wlr_fullscreen_shell_v1.h
index c4b1cbc7a..ef60eb9cb 100644
--- a/include/wlr/types/wlr_fullscreen_shell_v1.h
+++ b/include/wlr/types/wlr_fullscreen_shell_v1.h
@@ -11,6 +11,7 @@
 #define WLR_TYPES_WLR_FULLSCREEN_SHELL_V1_H
 
 #include <wayland-server-core.h>
+#include <wlr/api.h>
 #include "fullscreen-shell-unstable-v1-protocol.h"
 
 struct wlr_fullscreen_shell_v1 {
@@ -36,6 +37,7 @@ struct wlr_fullscreen_shell_v1_present_surface_event {
 	struct wlr_output *output; // can be NULL
 };
 
+WLR_DEPRECATED("fullscreen-shell support will be removed in the next version")
 struct wlr_fullscreen_shell_v1 *wlr_fullscreen_shell_v1_create(
 	struct wl_display *display);
 
diff --git a/meson.build b/meson.build
index fb1ea12ba..08c5d1185 100644
--- a/meson.build
+++ b/meson.build
@@ -22,6 +22,7 @@ big_endian = target_machine.endian() == 'big'
 
 add_project_arguments([
 	'-D_POSIX_C_SOURCE=200809L',
+	'-DWLR_IMPLEMENTATION',
 	'-DWLR_USE_UNSTABLE',
 	'-DWLR_PRIVATE=',
 	'-DWLR_LITTLE_ENDIAN=@0@'.format(little_endian.to_int()),