diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index bba75af..c7e0736 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -6028,6 +6028,12 @@
 #ifdef _CS_ARCHITECTURE
     {"CS_ARCHITECTURE",	_CS_ARCHITECTURE},
 #endif
+#ifdef _CS_GNU_LIBC_VERSION
+    {"CS_GNU_LIBC_VERSION",	_CS_GNU_LIBC_VERSION},
+#endif
+#ifdef _CS_GNU_LIBPTHREAD_VERSION
+    {"CS_GNU_LIBPTHREAD_VERSION",	_CS_GNU_LIBPTHREAD_VERSION},
+#endif
 #ifdef _CS_HOSTNAME
     {"CS_HOSTNAME",	_CS_HOSTNAME},
 #endif