server: support wlr-gamma-control

 river/Server.zig | 1 +
 river/c.zig      | 1 +
 2 files changed, 2 insertions(+)

diff --git a/river/Server.zig b/river/Server.zig
index fd28ce7..fd8aeff 100644
--- a/river/Server.zig
+++ b/river/Server.zig
@@ -129,6 +129,7 @@ pub fn init(self: *Self) !void {
     // These all free themselves when the wl_display is destroyed
     _ = c.wlr_data_device_manager_create(self.wl_display) orelse return error.OutOfMemory;
     _ = c.wlr_data_control_manager_v1_create(self.wl_display) orelse return error.OutOfMemory;
+    _ = c.wlr_gamma_control_manager_v1_create(self.wl_display) orelse return error.OutOfMemory;
     _ = c.wlr_screencopy_manager_v1_create(self.wl_display) orelse return error.OutOfMemory;
     _ = c.wlr_xdg_output_manager_v1_create(self.wl_display, self.root.wlr_output_layout) orelse
         return error.OutOfMemory;
diff --git a/river/c.zig b/river/c.zig
index 113df91..ead36a3 100644
--- a/river/c.zig
+++ b/river/c.zig
@@ -34,6 +34,7 @@ pub usingnamespace @cImport({
     @cInclude("wlr/types/wlr_cursor.h");
     @cInclude("wlr/types/wlr_data_control_v1.h");
     @cInclude("wlr/types/wlr_data_device.h");
+    @cInclude("wlr/types/wlr_gamma_control_v1.h");
     @cInclude("wlr/types/wlr_idle.h");
     @cInclude("wlr/types/wlr_input_device.h");
     @cInclude("wlr/types/wlr_input_inhibitor.h");