diff -ur a/Modules/posixmodule.c b/Modules/posixmodule.c
--- a/Modules/posixmodule.c	2022-01-11 11:45:55.120000000 +0000
+++ b/Modules/posixmodule.c	2022-01-11 11:47:28.010000000 +0000
@@ -272,8 +272,9 @@
 #  undef HAVE_SCHED_SETAFFINITY
 #endif
 
-#if defined(HAVE_SYS_XATTR_H) && defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__GNU__)
+#if defined(HAVE_SYS_XATTR_H) && defined(__linux__) && !defined(__FreeBSD_kernel__) && !defined(__GNU__)
 #  define USE_XATTRS
+#  include <linux/limits.h>
 #endif
 
 #ifdef USE_XATTRS