diff '--color=auto' -ur libaom-3.15.0.orig/CMakeLists.txt libaom-3.15.0/CMakeLists.txt
--- libaom-3.15.0.orig/CMakeLists.txt	2026-08-29 03:20:04.831668397 +0200
+++ libaom-3.15.0/CMakeLists.txt	2026-08-29 03:24:28.071287993 +0200
@@ -311,6 +311,7 @@
 
 if(ENABLE_APPS)
   # Only used by aomenc.
+  add_definitions(-D_POSIX_C_SOURCE=200112L)
   add_library(aom_encoder_stats OBJECT ${AOM_ENCODER_STATS_SOURCES})
   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_encoder_stats)
 endif()