diff --git a/src/kernel/libroot/posix/glibc/include/ctype.h b/src/kernel/libroot/posix/glibc/include/ctype.h
deleted file mode 100644
index 2b85c68b12..0000000000
--- a/src/kernel/libroot/posix/glibc/include/ctype.h
+++ /dev/null
@@ -1,59 +0,0 @@
-#ifndef _CTYPE_H
-
-extern int __isctype (int __c, int __mask);
-
-# ifndef NOT_IN_libc
-
-/* These accessors are used by the optimized macros to find the
-   thread-local cache of ctype information from the current thread's
-   locale.  For inside libc, define them as inlines using the _NL_CURRENT
-   accessors.  We don't use _NL_CURRENT_LOCALE->__ctype_b here because we
-   want to cause a link-time ref to _nl_current_LC_CTYPE under
-   NL_CURRENT_INDIRECT.  */
-
-#  include "../locale/localeinfo.h"
-#  include <bits/libc-tsd.h>
-
-#  ifndef CTYPE_EXTERN_INLINE	/* Used by ctype/ctype-info.c, which see.  */
-#   define CTYPE_EXTERN_INLINE static inline
-#  endif
-
-__libc_tsd_define (extern, CTYPE_B)
-__libc_tsd_define (extern, CTYPE_TOUPPER)
-__libc_tsd_define (extern, CTYPE_TOLOWER)
-
-CTYPE_EXTERN_INLINE const uint16_t ** __attribute__ ((const))
-__ctype_b_loc (void)
-{
-  const uint16_t **tablep =
-    (const uint16_t **) __libc_tsd_address (CTYPE_B);
-  if (__builtin_expect (*tablep == NULL, 0))
-    *tablep = (const uint16_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_CLASS) + 128;
-  return tablep;
-}
-
-CTYPE_EXTERN_INLINE const int32_t ** __attribute__ ((const))
-__ctype_toupper_loc (void)
-{
-  const int32_t **tablep =
-    (const int32_t **) __libc_tsd_address (CTYPE_TOUPPER);
-  if (__builtin_expect (*tablep == NULL, 0))
-    *tablep = ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER) + 128);
-  return tablep;
-}
-
-CTYPE_EXTERN_INLINE const int32_t ** __attribute__ ((const))
-__ctype_tolower_loc (void)
-{
-  const int32_t **tablep =
-    (const int32_t **) __libc_tsd_address (CTYPE_TOLOWER);
-  if (__builtin_expect (*tablep == NULL, 0))
-    *tablep = ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOLOWER) + 128);
-  return tablep;
-}
-
-# endif	/* Not NOT_IN_libc.  */
-
-# include <ctype/ctype.h>
-
-#endif /* ctype.h */