PR merged https://github.com/artemsen/swayimg/pull/570.patch
xkb: Add missing header for libcxx-23
--- a/src/xkb.cpp
+++ b/src/xkb.cpp
@@ -8,6 +8,7 @@
 #include <unistd.h>
 
 #include <cassert>
+#include <cstdlib>
 #include <tuple>
 
 Xkb::Xkb()