diff -ruN mesa-25.0.7/include/c99_alloca.h mesa-25.0.7-banan_os/include/c99_alloca.h
--- mesa-25.0.7/include/c99_alloca.h	2025-05-28 18:20:23.000000000 +0300
+++ mesa-25.0.7-banan_os/include/c99_alloca.h	2025-06-17 14:29:11.535095878 +0300
@@ -39,6 +39,10 @@
 
 #  include <alloca.h>
 
+#elif defined(__banan_os__)
+
+#  define alloca __builtin_alloca
+
 #else /* !defined(_MSC_VER) */
 
 #  include <stdlib.h>