diff -ruwN source/programs/platform.h source-new/programs/platform.h
--- source/programs/platform.h	2025-02-19 07:04:24.000000000 +0700
+++ source-new/programs/platform.h	2025-07-21 22:52:07.716447723 +0700
@@ -109,6 +109,11 @@
 #endif   /* PLATFORM_POSIX_VERSION */
 
 
+#if defined(__redox__)
+/* TODO: AT_FDCWD && utimensat must be defined to conform _POSIX_VERSION */
+#   define PLATFORM_POSIX_VERSION 1
+#endif
+
 #if PLATFORM_POSIX_VERSION > 1
    /* glibc < 2.26 may not expose struct timespec def without this.
     * See issue #1920. */