posix: Remove internal_function attribute

18 files changed, 198 insertions, 261 deletions

diff --git a/ChangeLog b/ChangeLog
index c83315ae3d..9ca31d04f4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,74 @@
 2017-08-31  Florian Weimer  <fweimer@redhat.com>
 
+	* posix/fnmatch.c (internal_function): Remove definition.
+	* posix/fnmatch_loop.c (FCT, EXT, END): Remove internal_function.
+	* posix/regcomp.c (peek_token, init_word_char)
+	(duplicate_node_closure, fetch_token, peek_token)
+	(peek_token_bracket, build_range_exp, build_collating_symbol):
+	Likewise.
+	* posix/regex_internal.c (re_string_construct_common)
+	(create_ci_newstate, create_cd_newstate, re_string_allocate)
+	(re_string_construct, re_string_realloc_buffers, build_wcs_buffer)
+	(build_wcs_upper_buffer, re_string_skip_chars, build_upper_buffer)
+	(re_string_translate_buffer, re_string_reconstruct)
+	(re_string_peek_byte_case, re_string_fetch_byte_case)
+	(re_string_destruct, re_string_context_at, re_node_set_alloc)
+	(re_node_set_init_1, re_node_set_init_2, re_node_set_init_copy)
+	(re_node_set_add_intersect, re_node_set_init_union)
+	(re_node_set_merge, re_node_set_insert, re_node_set_insert_last)
+	(re_node_set_compare, re_node_set_contains, re_node_set_remove_at)
+	(re_dfa_add_node, calc_state_hash, re_acquire_state)
+	(re_acquire_state_context): Likewise.
+	* posix/regex_internal.h (internal_function): Remove definition.
+	(re_string_realloc_buffers, build_wcs_buffer)
+	(build_wcs_upper_buffer, build_upper_buffer)
+	(re_string_translate_buffer, re_string_context_at)
+	(re_string_char_size_at, re_string_wchar_at)
+	(re_string_elem_size_at): Likewise.
+	* posix/regexec.c (match_ctx_init, match_ctx_clean)
+	(match_ctx_free, match_ctx_add_entry, search_cur_bkref_entry)
+	(match_ctx_add_subtop, match_ctx_add_sublast, sift_ctx_init)
+	(re_search_internal, re_search_2_stub, re_search_stub)
+	(re_copy_regs, prune_impossible_nodes, check_matching)
+	(check_halt_state_context, update_regs, push_fail_stack, set_regs)
+	(free_fail_stack_return, sift_states_iter_mb)
+	(sift_states_backward, build_sifted_states)
+	(update_cur_sifted_state, add_epsilon_src_nodes, check_dst_limits)
+	(check_dst_limits_calc_pos_1, check_dst_limits_calc_pos)
+	(check_subexp_limits, sift_states_bkref, merge_state_array)
+	(find_recover_state, transit_state, merge_state_with_log)
+	(check_subexp_matching_top, transit_state_sb, transit_state_sb)
+	(transit_state_mb, transit_state_bkref, get_subexp)
+	(get_subexp_sub, find_subexp_node, check_arrival)
+	(check_arrival_add_next_nodes, check_arrival_expand_ecl)
+	(check_arrival_expand_ecl_sub, expand_bkref_cache, build_trtable)
+	(check_node_accept_bytes, find_collation_sequence_value)
+	(group_nodes_into_DFAstates, check_node_accept, extend_buffers)
+	(acquire_init_state_context, check_halt_node_context)
+	(proceed_next_node, pop_fail_stack, clean_state_log_if_needed)
+	(sub_epsilon_src_nodes): Likewise.
+	* posix/spawn_int.h (__spawn_valid_fd): Likewise.
+	* posix/spawn_valid_fd (__spawn_valid_fd): Likewise.
+	* posix/wordexp.c (parse_dollars, parse_backtick, parse_dquote)
+	(eval_expr, w_addmem, w_addstr, w_addword, parse_backslash)
+	(parse_qtd_backslash, parse_tilde, do_parse_glob, parse_glob)
+	(parse_squote, eval_expr_val, eval_expr_multdiv, parse_arith)
+	(exec_comm_child, exec_comm, parse_comm, parse_param): Likewise.
+	* sysdeps/posix/ttyname.c (getttyname): Likewise.
+	* sysdeps/posix/ttyname_r.c (getttyname_r): Likewise.
+	* sysdeps/unix/sysv/linux/preadv.c (__atomic_preadv_replacement)
+	(PREADV): Likewise.
+	* sysdeps/unix/sysv/linux/preadv64.c (__atomic_preadv64_replacement)
+	(PREADV): Likewise.
+	* sysdeps/unix/sysv/linux/pwritev.c (__atomic_pwritev_replacement)
+	(PWRITEV): Likewise.
+	* sysdeps/unix/sysv/linux/pwritev64.c (__atomic_pwritev64_replacement)
+	(PWRITEV): Likewise.
+	* sysdeps/unix/sysv/linux/ttyname.c (getttyname): Likewise.
+	* sysdeps/unix/sysv/linux/ttyname_r.c (getttyname_r): Likewise.
+
+2017-08-31  Florian Weimer  <fweimer@redhat.com>
+
 	* nptl/allocatestack.c (change_stack_perm, __deallocate_stack)
 	(setxid_mark_thread, setxid_unmark_thread, setxid_signal_thread):
 	Remove internal_function.
diff --git a/posix/fnmatch.c b/posix/fnmatch.c
index 441a41f0a5..62df3ece46 100644
--- a/posix/fnmatch.c
+++ b/posix/fnmatch.c
@@ -186,12 +186,6 @@ __wcschrnul (const wchar_t *s, wint_t c)
 }
 # endif
 
-# ifndef internal_function
-/* Inside GNU libc we mark some function in a special way.  In other
-   environments simply ignore the marking.  */
-#  define internal_function
-# endif
-
 /* Note that this evaluates C many times.  */
 # ifdef _LIBC
 #  define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
diff --git a/posix/fnmatch_loop.c b/posix/fnmatch_loop.c
index 2500dce615..e90ee46e01 100644
--- a/posix/fnmatch_loop.c
+++ b/posix/fnmatch_loop.c
@@ -28,16 +28,13 @@ struct STRUCT
    it matches, nonzero if not.  */
 static int FCT (const CHAR *pattern, const CHAR *string,
 		const CHAR *string_end, int no_leading_period, int flags,
-		struct STRUCT *ends, size_t alloca_used)
-     internal_function;
+		struct STRUCT *ends, size_t alloca_used);
 static int EXT (INT opt, const CHAR *pattern, const CHAR *string,
 		const CHAR *string_end, int no_leading_period, int flags,
-		size_t alloca_used)
-     internal_function;
-static const CHAR *END (const CHAR *patternp) internal_function;
+		size_t alloca_used);
+static const CHAR *END (const CHAR *patternp);
 
 static int
-internal_function
 FCT (const CHAR *pattern, const CHAR *string, const CHAR *string_end,
      int no_leading_period, int flags, struct STRUCT *ends, size_t alloca_used)
 {
@@ -1000,7 +997,6 @@ FCT (const CHAR *pattern, const CHAR *string, const CHAR *string_end,
 
 
 static const CHAR *
-internal_function
 END (const CHAR *pattern)
 {
   const CHAR *p = pattern;
@@ -1044,7 +1040,6 @@ END (const CHAR *pattern)
 
 
 static int
-internal_function
 EXT (INT opt, const CHAR *pattern, const CHAR *string, const CHAR *string_end,
      int no_leading_period, int flags, size_t alloca_used)
 {
diff --git a/posix/regcomp.c b/posix/regcomp.c
index b724ee3389..a5b46139a9 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -61,7 +61,7 @@ static reg_errcode_t calc_inveclosure (re_dfa_t *dfa);
 static int fetch_number (re_string_t *input, re_token_t *token,
 			 reg_syntax_t syntax);
 static int peek_token (re_token_t *token, re_string_t *input,
-			reg_syntax_t syntax) internal_function;
+			reg_syntax_t syntax);
 static bin_tree_t *parse (re_string_t *regexp, regex_t *preg,
 			  reg_syntax_t syntax, reg_errcode_t *err);
 static bin_tree_t *parse_reg_exp (re_string_t *regexp, regex_t *preg,
@@ -916,7 +916,6 @@ init_dfa (re_dfa_t *dfa, size_t pat_len)
    character used by some operators like "\<", "\>", etc.  */
 
 static void
-internal_function
 init_word_char (re_dfa_t *dfa)
 {
   dfa->word_ops_used = 1;
@@ -1460,7 +1459,6 @@ link_nfa_nodes (void *extra, bin_tree_t *node)
    to their own constraint.  */
 
 static reg_errcode_t
-internal_function
 duplicate_node_closure (re_dfa_t *dfa, int top_org_node, int top_clone_node,
 			int root_node, unsigned int init_constraint)
 {
@@ -1749,7 +1747,6 @@ calc_eclosure_iter (re_node_set *new_set, re_dfa_t *dfa, int node, int root)
    We must not use this function inside bracket expressions.  */
 
 static void
-internal_function
 fetch_token (re_token_t *result, re_string_t *input, reg_syntax_t syntax)
 {
   re_string_skip_bytes (input, peek_token (result, input, syntax));
@@ -1759,7 +1756,6 @@ fetch_token (re_token_t *result, re_string_t *input, reg_syntax_t syntax)
    We must not use this function inside bracket expressions.  */
 
 static int
-internal_function
 peek_token (re_token_t *token, re_string_t *input, reg_syntax_t syntax)
 {
   unsigned char c;
@@ -1998,7 +1994,6 @@ peek_token (re_token_t *token, re_string_t *input, reg_syntax_t syntax)
    We must not use this function out of bracket expressions.  */
 
 static int
-internal_function
 peek_token_bracket (re_token_t *token, re_string_t *input, reg_syntax_t syntax)
 {
   unsigned char c;
@@ -2626,7 +2621,6 @@ parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa,
      update it.  */
 
 static reg_errcode_t
-internal_function
 # ifdef RE_ENABLE_I18N
 build_range_exp (bitset_t sbcset, re_charset_t *mbcset, int *range_alloc,
 		 bracket_elem_t *start_elem, bracket_elem_t *end_elem)
@@ -2747,7 +2741,6 @@ build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem,
    pointer argument since we may update it.  */
 
 static reg_errcode_t
-internal_function
 # ifdef RE_ENABLE_I18N
 build_collating_symbol (bitset_t sbcset, re_charset_t *mbcset,
 			int *coll_sym_alloc, const unsigned char *name)
diff --git a/posix/regex_internal.c b/posix/regex_internal.c
index efafd173b3..111231c198 100644
--- a/posix/regex_internal.c
+++ b/posix/regex_internal.c
@@ -20,14 +20,14 @@
 static void re_string_construct_common (const char *str, int len,
 					re_string_t *pstr,
 					RE_TRANSLATE_TYPE trans, int icase,
-					const re_dfa_t *dfa) internal_function;
+					const re_dfa_t *dfa);
 static re_dfastate_t *create_ci_newstate (const re_dfa_t *dfa,
 					  const re_node_set *nodes,
-					  unsigned int hash) internal_function;
+					  unsigned int hash);
 static re_dfastate_t *create_cd_newstate (const re_dfa_t *dfa,
 					  const re_node_set *nodes,
 					  unsigned int context,
-					  unsigned int hash) internal_function;
+					  unsigned int hash);
 
 /* Functions for string operation.  */
 
@@ -35,7 +35,7 @@ static re_dfastate_t *create_cd_newstate (const re_dfa_t *dfa,
    re_string_reconstruct before using the object.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_string_allocate (re_string_t *pstr, const char *str, int len, int init_len,
 		    RE_TRANSLATE_TYPE trans, int icase, const re_dfa_t *dfa)
 {
@@ -63,7 +63,7 @@ re_string_allocate (re_string_t *pstr, const char *str, int len, int init_len,
 /* This function allocate the buffers, and initialize them.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_string_construct (re_string_t *pstr, const char *str, int len,
 		     RE_TRANSLATE_TYPE trans, int icase, const re_dfa_t *dfa)
 {
@@ -126,7 +126,7 @@ re_string_construct (re_string_t *pstr, const char *str, int len,
 /* Helper functions for re_string_allocate, and re_string_construct.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_string_realloc_buffers (re_string_t *pstr, int new_buf_len)
 {
 #ifdef RE_ENABLE_I18N
@@ -166,7 +166,6 @@ re_string_realloc_buffers (re_string_t *pstr, int new_buf_len)
 
 
 static void
-internal_function
 re_string_construct_common (const char *str, int len, re_string_t *pstr,
 			    RE_TRANSLATE_TYPE trans, int icase,
 			    const re_dfa_t *dfa)
@@ -198,7 +197,6 @@ re_string_construct_common (const char *str, int len, re_string_t *pstr,
    built and starts from PSTR->VALID_LEN.  */
 
 static void
-internal_function
 build_wcs_buffer (re_string_t *pstr)
 {
 #ifdef _LIBC
@@ -267,7 +265,7 @@ build_wcs_buffer (re_string_t *pstr)
    but for REG_ICASE.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 build_wcs_upper_buffer (re_string_t *pstr)
 {
   mbstate_t prev_st;
@@ -486,7 +484,6 @@ build_wcs_upper_buffer (re_string_t *pstr)
    Return the index.  */
 
 static int
-internal_function
 re_string_skip_chars (re_string_t *pstr, int new_raw_idx, wint_t *last_wc)
 {
   mbstate_t prev_st;
@@ -527,7 +524,6 @@ re_string_skip_chars (re_string_t *pstr, int new_raw_idx, wint_t *last_wc)
    This function is used in case of REG_ICASE.  */
 
 static void
-internal_function
 build_upper_buffer (re_string_t *pstr)
 {
   int char_idx, end_idx;
@@ -550,7 +546,6 @@ build_upper_buffer (re_string_t *pstr)
 /* Apply TRANS to the buffer in PSTR.  */
 
 static void
-internal_function
 re_string_translate_buffer (re_string_t *pstr)
 {
   int buf_idx, end_idx;
@@ -571,7 +566,7 @@ re_string_translate_buffer (re_string_t *pstr)
    convert to upper case in case of REG_ICASE, apply translation.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_string_reconstruct (re_string_t *pstr, int idx, int eflags)
 {
   int offset = idx - pstr->raw_mbs_idx;
@@ -831,7 +826,7 @@ re_string_reconstruct (re_string_t *pstr, int idx, int eflags)
 }
 
 static unsigned char
-internal_function __attribute ((pure))
+__attribute ((pure))
 re_string_peek_byte_case (const re_string_t *pstr, int idx)
 {
   int ch, off;
@@ -867,7 +862,6 @@ re_string_peek_byte_case (const re_string_t *pstr, int idx)
 }
 
 static unsigned char
-internal_function
 re_string_fetch_byte_case (re_string_t *pstr)
 {
   if (BE (!pstr->mbs_allocated, 1))
@@ -904,7 +898,6 @@ re_string_fetch_byte_case (re_string_t *pstr)
 }
 
 static void
-internal_function
 re_string_destruct (re_string_t *pstr)
 {
 #ifdef RE_ENABLE_I18N
@@ -918,7 +911,6 @@ re_string_destruct (re_string_t *pstr)
 /* Return the context at IDX in INPUT.  */
 
 static unsigned int
-internal_function
 re_string_context_at (const re_string_t *input, int idx, int eflags)
 {
   int c;
@@ -963,7 +955,7 @@ re_string_context_at (const re_string_t *input, int idx, int eflags)
 /* Functions for set operation.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_alloc (re_node_set *set, int size)
 {
   set->alloc = size;
@@ -975,7 +967,7 @@ re_node_set_alloc (re_node_set *set, int size)
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_init_1 (re_node_set *set, int elem)
 {
   set->alloc = 1;
@@ -991,7 +983,7 @@ re_node_set_init_1 (re_node_set *set, int elem)
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_init_2 (re_node_set *set, int elem1, int elem2)
 {
   set->alloc = 2;
@@ -1021,7 +1013,7 @@ re_node_set_init_2 (re_node_set *set, int elem1, int elem2)
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_init_copy (re_node_set *dest, const re_node_set *src)
 {
   dest->nelem = src->nelem;
@@ -1046,7 +1038,7 @@ re_node_set_init_copy (re_node_set *dest, const re_node_set *src)
    Note: We assume dest->elems is NULL, when dest->alloc is 0.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1,
 			   const re_node_set *src2)
 {
@@ -1137,7 +1129,7 @@ re_node_set_add_intersect (re_node_set *dest, const re_node_set *src1,
    DEST. Return value indicate the error code or REG_NOERROR if succeeded.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_init_union (re_node_set *dest, const re_node_set *src1,
 			const re_node_set *src2)
 {
@@ -1190,7 +1182,7 @@ re_node_set_init_union (re_node_set *dest, const re_node_set *src1,
    DEST. Return value indicate the error code or REG_NOERROR if succeeded.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_merge (re_node_set *dest, const re_node_set *src)
 {
   int is, id, sbase, delta;
@@ -1273,7 +1265,7 @@ re_node_set_merge (re_node_set *dest, const re_node_set *src)
    return -1 if an error is occured, return 1 otherwise.  */
 
 static int
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_insert (re_node_set *set, int elem)
 {
   int idx;
@@ -1330,7 +1322,7 @@ re_node_set_insert (re_node_set *set, int elem)
    Return -1 if an error is occured, return 1 otherwise.  */
 
 static int
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_node_set_insert_last (re_node_set *set, int elem)
 {
   /* Realloc if we need.  */
@@ -1353,7 +1345,7 @@ re_node_set_insert_last (re_node_set *set, int elem)
    return 1 if SET1 and SET2 are equivalent, return 0 otherwise.  */
 
 static int
-internal_function __attribute ((pure))
+__attribute ((pure))
 re_node_set_compare (const re_node_set *set1, const re_node_set *set2)
 {
   int i;
@@ -1368,7 +1360,7 @@ re_node_set_compare (const re_node_set *set1, const re_node_set *set2)
 /* Return (idx + 1) if SET contains the element ELEM, return 0 otherwise.  */
 
 static int
-internal_function __attribute ((pure))
+__attribute ((pure))
 re_node_set_contains (const re_node_set *set, int elem)
 {
   unsigned int idx, right, mid;
@@ -1390,7 +1382,6 @@ re_node_set_contains (const re_node_set *set, int elem)
 }
 
 static void
-internal_function
 re_node_set_remove_at (re_node_set *set, int idx)
 {
   if (idx < 0 || idx >= set->nelem)
@@ -1405,7 +1396,6 @@ re_node_set_remove_at (re_node_set *set, int idx)
    Or return -1, if an error will be occured.  */
 
 static int
-internal_function
 re_dfa_add_node (re_dfa_t *dfa, re_token_t token)
 {
   int type = token.type;
@@ -1453,7 +1443,6 @@ re_dfa_add_node (re_dfa_t *dfa, re_token_t token)
 }
 
 static inline unsigned int
-internal_function
 calc_state_hash (const re_node_set *nodes, unsigned int context)
 {
   unsigned int hash = nodes->nelem + context;
@@ -1473,7 +1462,7 @@ calc_state_hash (const re_node_set *nodes, unsigned int context)
 	   optimization.  */
 
 static re_dfastate_t *
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_acquire_state (reg_errcode_t *err, const re_dfa_t *dfa,
 		  const re_node_set *nodes)
 {
@@ -1517,7 +1506,7 @@ re_acquire_state (reg_errcode_t *err, const re_dfa_t *dfa,
 	   optimization.  */
 
 static re_dfastate_t *
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 re_acquire_state_context (reg_errcode_t *err, const re_dfa_t *dfa,
 			  const re_node_set *nodes, unsigned int context)
 {
@@ -1609,7 +1598,7 @@ free_state (re_dfastate_t *state)
    Return the new state if succeeded, otherwise return NULL.  */
 
 static re_dfastate_t *
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 create_ci_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
 		    unsigned int hash)
 {
@@ -1659,7 +1648,7 @@ create_ci_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
    Return the new state if succeeded, otherwise return NULL.  */
 
 static re_dfastate_t *
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
 		    unsigned int context, unsigned int hash)
 {
diff --git a/posix/regex_internal.h b/posix/regex_internal.h
index 04317128b7..fef1d35e55 100644
--- a/posix/regex_internal.h
+++ b/posix/regex_internal.h
@@ -373,28 +373,17 @@ typedef struct re_string_t re_string_t;
 struct re_dfa_t;
 typedef struct re_dfa_t re_dfa_t;
 
-#ifndef _LIBC
-# ifdef __i386__
-#  define internal_function   __attribute__ ((regparm (3), stdcall))
-# else
-#  define internal_function
-# endif
-#endif
-
 #if IS_IN (libc)
 static reg_errcode_t re_string_realloc_buffers (re_string_t *pstr,
-						int new_buf_len)
-     internal_function;
+						int new_buf_len);
 # ifdef RE_ENABLE_I18N
-static void build_wcs_buffer (re_string_t *pstr) internal_function;
-static reg_errcode_t build_wcs_upper_buffer (re_string_t *pstr)
-  internal_function;
+static void build_wcs_buffer (re_string_t *pstr);
+static reg_errcode_t build_wcs_upper_buffer (re_string_t *pstr);
 # endif /* RE_ENABLE_I18N */
-static void build_upper_buffer (re_string_t *pstr) internal_function;
-static void re_string_translate_buffer (re_string_t *pstr) internal_function;
+static void build_upper_buffer (re_string_t *pstr);
+static void re_string_translate_buffer (re_string_t *pstr);
 static unsigned int re_string_context_at (const re_string_t *input, int idx,
-					  int eflags)
-     internal_function __attribute__ ((pure));
+					  int eflags) __attribute__ ((pure));
 #endif
 #define re_string_peek_byte(pstr, offset) \
   ((pstr)->mbs[(pstr)->cur_idx + offset])
@@ -710,7 +699,7 @@ bitset_mask (bitset_t dest, const bitset_t src)
 #ifdef RE_ENABLE_I18N
 /* Inline functions for re_string.  */
 static int
-internal_function __attribute__ ((pure, unused))
+__attribute__ ((pure, unused))
 re_string_char_size_at (const re_string_t *pstr, int idx)
 {
   int byte_idx;
@@ -723,7 +712,7 @@ re_string_char_size_at (const re_string_t *pstr, int idx)
 }
 
 static wint_t
-internal_function __attribute__ ((pure, unused))
+__attribute__ ((pure, unused))
 re_string_wchar_at (const re_string_t *pstr, int idx)
 {
   if (pstr->mb_cur_max == 1)
@@ -737,7 +726,7 @@ re_string_wchar_at (const re_string_t *pstr, int idx)
 #  endif
 
 static int
-internal_function __attribute__ ((pure, unused))
+__attribute__ ((pure, unused))
 re_string_elem_size_at (const re_string_t *pstr, int idx)
 {
 #  ifdef _LIBC
diff --git a/posix/regexec.c b/posix/regexec.c
index 8eb09dcfa0..f46b1f71ca 100644
--- a/posix/regexec.c
+++ b/posix/regexec.c
@@ -20,187 +20,159 @@
 #include <stdint.h>
 
 static reg_errcode_t match_ctx_init (re_match_context_t *cache, int eflags,
-				     int n) internal_function;
-static void match_ctx_clean (re_match_context_t *mctx) internal_function;
-static void match_ctx_free (re_match_context_t *cache) internal_function;
+				     int n);
+static void match_ctx_clean (re_match_context_t *mctx);
+static void match_ctx_free (re_match_context_t *cache);
 static reg_errcode_t match_ctx_add_entry (re_match_context_t *cache, int node,
-					  int str_idx, int from, int to)
-     internal_function;
-static int search_cur_bkref_entry (const re_match_context_t *mctx, int str_idx)
-     internal_function;
+					  int str_idx, int from, int to);
+static int search_cur_bkref_entry (const re_match_context_t *mctx,
+				   int str_idx);
 static reg_errcode_t match_ctx_add_subtop (re_match_context_t *mctx, int node,
-					   int str_idx) internal_function;
+					   int str_idx);
 static re_sub_match_last_t * match_ctx_add_sublast (re_sub_match_top_t *subtop,
-						   int node, int str_idx)
-     internal_function;
+						   int node, int str_idx);
 static void sift_ctx_init (re_sift_context_t *sctx, re_dfastate_t **sifted_sts,
 			   re_dfastate_t **limited_sts, int last_node,
-			   int last_str_idx)
-     internal_function;
+			   int last_str_idx);
 static reg_errcode_t re_search_internal (const regex_t *preg,
 					 const char *string, int length,
 					 int start, int range, int stop,
 					 size_t nmatch, regmatch_t pmatch[],
-					 int eflags) internal_function;
+					 int eflags);
 static int re_search_2_stub (struct re_pattern_buffer *bufp,
 			     const char *string1, int length1,
 			     const char *string2, int length2,
 			     int start, int range, struct re_registers *regs,
-			     int stop, int ret_len) internal_function;
+			     int stop, int ret_len);
 static int re_search_stub (struct re_pattern_buffer *bufp,
 			   const char *string, int length, int start,
 			   int range, int stop, struct re_registers *regs,
-			   int ret_len) internal_function;
+			   int ret_len);
 static unsigned re_copy_regs (struct re_registers *regs, regmatch_t *pmatch,
-			      int nregs, int regs_allocated) internal_function;
-static reg_errcode_t prune_impossible_nodes (re_match_context_t *mctx)
-     internal_function;
+			      int nregs, int regs_allocated);
+static reg_errcode_t prune_impossible_nodes (re_match_context_t *mctx);
 static int check_matching (re_match_context_t *mctx, int fl_longest_match,
-			   int *p_match_first) internal_function;
+			   int *p_match_first);
 static int check_halt_state_context (const re_match_context_t *mctx,
-				     const re_dfastate_t *state, int idx)
-     internal_function;
+				     const re_dfastate_t *state, int idx);
 static void update_regs (const re_dfa_t *dfa, regmatch_t *pmatch,
 			 regmatch_t *prev_idx_match, int cur_node,
-			 int cur_idx, int nmatch) internal_function;
+			 int cur_idx, int nmatch);
 static reg_errcode_t push_fail_stack (struct re_fail_stack_t *fs,
 				      int str_idx, int dest_node, int nregs,
 				      regmatch_t *regs,
-				      re_node_set *eps_via_nodes)
-     internal_function;
+				      re_node_set *eps_via_nodes);
 static reg_errcode_t set_regs (const regex_t *preg,
 			       const re_match_context_t *mctx,
 			       size_t nmatch, regmatch_t *pmatch,
-			       int fl_backtrack) internal_function;
-static reg_errcode_t free_fail_stack_return (struct re_fail_stack_t *fs)
-     internal_function;
+			       int fl_backtrack);
+static reg_errcode_t free_fail_stack_return (struct re_fail_stack_t *fs);
 
 #ifdef RE_ENABLE_I18N
 static int sift_states_iter_mb (const re_match_context_t *mctx,
 				re_sift_context_t *sctx,
-				int node_idx, int str_idx, int max_str_idx)
-     internal_function;
+				int node_idx, int str_idx, int max_str_idx);
 #endif /* RE_ENABLE_I18N */
 static reg_errcode_t sift_states_backward (const re_match_context_t *mctx,
-					   re_sift_context_t *sctx)
-     internal_function;
+					   re_sift_context_t *sctx);
 static reg_errcode_t build_sifted_states (const re_match_context_t *mctx,
 					  re_sift_context_t *sctx, int str_idx,
-					  re_node_set *cur_dest)
-     internal_function;
+					  re_node_set *cur_dest);
 static reg_errcode_t update_cur_sifted_state (const re_match_context_t *mctx,
 					      re_sift_context_t *sctx,
 					      int str_idx,
-					      re_node_set *dest_nodes)
-     internal_function;
+					      re_node_set *dest_nodes);
 static reg_errcode_t add_epsilon_src_nodes (const re_dfa_t *dfa,
 					    re_node_set *dest_nodes,
-					    const re_node_set *candidates)
-     internal_function;
+					    const re_node_set *candidates);
 static int check_dst_limits (const re_match_context_t *mctx,
 			     re_node_set *limits,
 			     int dst_node, int dst_idx, int src_node,
-			     int src_idx) internal_function;
+			     int src_idx);
 static int check_dst_limits_calc_pos_1 (const re_match_context_t *mctx,
 					int boundaries, int subexp_idx,
-					int from_node, int bkref_idx)
-     internal_function;
+					int from_node, int bkref_idx);
 static int check_dst_limits_calc_pos (const re_match_context_t *mctx,
 				      int limit, int subexp_idx,
 				      int node, int str_idx,
-				      int bkref_idx) internal_function;
+				      int bkref_idx);
 static reg_errcode_t check_subexp_limits (const re_dfa_t *dfa,
 					  re_node_set *dest_nodes,
 					  const re_node_set *candidates,
 					  re_node_set *limits,
 					  struct re_backref_cache_entry *bkref_ents,
-					  int str_idx) internal_function;
+					  int str_idx);
 static reg_errcode_t sift_states_bkref (const re_match_context_t *mctx,
 					re_sift_context_t *sctx,
-					int str_idx, const re_node_set *candidates)
-     internal_function;
+					int str_idx,
+					const re_node_set *candidates);
 static reg_errcode_t merge_state_array (const re_dfa_t *dfa,
 					re_dfastate_t **dst,
-					re_dfastate_t **src, int num)
-     internal_function;
+					re_dfastate_t **src, int num);
 static re_dfastate_t *find_recover_state (reg_errcode_t *err,
-					 re_match_context_t *mctx) internal_function;
+					 re_match_context_t *mctx);
 static re_dfastate_t *transit_state (reg_errcode_t *err,
 				     re_match_context_t *mctx,
-				     re_dfastate_t *state) internal_function;
+				     re_dfastate_t *state);
 static re_dfastate_t *merge_state_with_log (reg_errcode_t *err,
 					    re_match_context_t *mctx,
-					    re_dfastate_t *next_state)
-     internal_function;
+					    re_dfastate_t *next_state);
 static reg_errcode_t check_subexp_matching_top (re_match_context_t *mctx,
 						re_node_set *cur_nodes,
-						int str_idx) internal_function;
+						int str_idx);
 #if 0
 static re_dfastate_t *transit_state_sb (reg_errcode_t *err,
 					re_match_context_t *mctx,
-					re_dfastate_t *pstate)
-     internal_function;
+					re_dfastate_t *pstate);
 #endif
 #ifdef RE_ENABLE_I18N
 static reg_errcode_t transit_state_mb (re_match_context_t *mctx,
-				       re_dfastate_t *pstate)
-     internal_function;
+				       re_dfastate_t *pstate);
 #endif /* RE_ENABLE_I18N */
 static reg_errcode_t transit_state_bkref (re_match_context_t *mctx,
-					  const re_node_set *nodes)
-     internal_function;
+					  const re_node_set *nodes);
 static reg_errcode_t get_subexp (re_match_context_t *mctx,
-				 int bkref_node, int bkref_str_idx)
-     internal_function;
+				 int bkref_node, int bkref_str_idx);
 static reg_errcode_t get_subexp_sub (re_match_context_t *mctx,
 				     const re_sub_match_top_t *sub_top,
 				     re_sub_match_last_t *sub_last,
-				     int bkref_node, int bkref_str)
-     internal_function;
+				     int bkref_node, int bkref_str);
 static int find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes,
-			     int subexp_idx, int type) internal_function;
+			     int subexp_idx, int type);
 static reg_errcode_t check_arrival (re_match_context_t *mctx,
 				    state_array_t *path, int top_node,
 				    int top_str, int last_node, int last_str,
-				    int type) internal_function;
+				    int type);
 static reg_errcode_t check_arrival_add_next_nodes (re_match_context_t *mctx,
 						   int str_idx,
 						   re_node_set *cur_nodes,
-						   re_node_set *next_nodes)
-     internal_function;
+						   re_node_set *next_nodes);
 static reg_errcode_t check_arrival_expand_ecl (const re_dfa_t *dfa,
 					       re_node_set *cur_nodes,
-					       int ex_subexp, int type)
-     internal_function;
+					       int ex_subexp, int type);
 static reg_errcode_t check_arrival_expand_ecl_sub (const re_dfa_t *dfa,
 						   re_node_set *dst_nodes,
 						   int target, int ex_subexp,
-						   int type) internal_function;
+						   int type);
 static reg_errcode_t expand_bkref_cache (re_match_context_t *mctx,
 					 re_node_set *cur_nodes, int cur_str,
-					 int subexp_num, int type)
-     internal_function;
-static int build_trtable (const re_dfa_t *dfa,
-			  re_dfastate_t *state) internal_function;
+					 int subexp_num, int type);
+static int build_trtable (const re_dfa_t *dfa, re_dfastate_t *state);
 #ifdef RE_ENABLE_I18N
 static int check_node_accept_bytes (const re_dfa_t *dfa, int node_idx,
-				    const re_string_t *input, int idx)
-     internal_function;
+				    const re_string_t *input, int idx);
 # ifdef _LIBC
 static unsigned int find_collation_sequence_value (const unsigned char *mbs,
-						   size_t name_len)
-     internal_function;
+						   size_t name_len);
 # endif /* _LIBC */
 #endif /* RE_ENABLE_I18N */
 static int group_nodes_into_DFAstates (const re_dfa_t *dfa,
 				       const re_dfastate_t *state,
 				       re_node_set *states_node,
-				       bitset_t *states_ch) internal_function;
+				       bitset_t *states_ch);
 static int check_node_accept (const re_match_context_t *mctx,
-			      const re_token_t *node, int idx)
-     internal_function;
-static reg_errcode_t extend_buffers (re_match_context_t *mctx, int min_len)
-     internal_function;
+			      const re_token_t *node, int idx);
+static reg_errcode_t extend_buffers (re_match_context_t *mctx, int min_len);
 
 /* Entry point for POSIX code.  */
 
@@ -345,7 +317,6 @@ weak_alias (__re_search_2, re_search_2)
 #endif
 
 static int
-internal_function
 re_search_2_stub (struct re_pattern_buffer *bufp, const char *string1,
 		  int length1, const char *string2, int length2, int start,
 		  int range, struct re_registers *regs,
@@ -391,7 +362,6 @@ re_search_2_stub (struct re_pattern_buffer *bufp, const char *string1,
    otherwise the position of the match is returned.  */
 
 static int
-internal_function
 re_search_stub (struct re_pattern_buffer *bufp, const char *string, int length,
 		int start, int range, int stop, struct re_registers *regs,
 		int ret_len)
@@ -479,7 +449,6 @@ re_search_stub (struct re_pattern_buffer *bufp, const char *string, int length,
 }
 
 static unsigned
-internal_function
 re_copy_regs (struct re_registers *regs, regmatch_t *pmatch, int nregs,
 	      int regs_allocated)
 {
@@ -605,7 +574,7 @@ re_exec (const char *s)
    (START + RANGE >= 0 && START + RANGE <= LENGTH)  */
 
 static reg_errcode_t
-__attribute_warn_unused_result__ internal_function
+__attribute_warn_unused_result__
 re_search_internal (const regex_t *preg, const char *string, int length,
 		    int start, int range, int stop, size_t nmatch,
 		    regmatch_t pmatch[], int eflags)
@@ -928,7 +897,7 @@ re_search_internal (const regex_t *preg, const char *string, int length,
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 prune_impossible_nodes (re_match_context_t *mctx)
 {
   const re_dfa_t *const dfa = mctx->dfa;
@@ -1024,7 +993,7 @@ prune_impossible_nodes (re_match_context_t *mctx)
    since initial states may have constraints like "\<", "^", etc..  */
 
 static inline re_dfastate_t *
-__attribute ((always_inline)) internal_function
+__attribute ((always_inline))
 acquire_init_state_context (reg_errcode_t *err, const re_match_context_t *mctx,
 			    int idx)
 {
@@ -1066,7 +1035,7 @@ acquire_init_state_context (reg_errcode_t *err, const re_match_context_t *mctx,
    index of the buffer.  */
 
 static int
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 check_matching (re_match_context_t *mctx, int fl_longest_match,
 		int *p_match_first)
 {
@@ -1199,7 +1168,6 @@ check_matching (re_match_context_t *mctx, int fl_longest_match,
 /* Check NODE match the current context.  */
 
 static int
-internal_function
 check_halt_node_context (const re_dfa_t *dfa, int node, unsigned int context)
 {
   re_token_type_t type = dfa->nodes[node].type;
@@ -1218,7 +1186,6 @@ check_halt_node_context (const re_dfa_t *dfa, int node, unsigned int context)
    match the context, return the node.  */
 
 static int
-internal_function
 check_halt_state_context (const re_match_context_t *mctx,
 			  const re_dfastate_t *state, int idx)
 {
@@ -1240,7 +1207,6 @@ check_halt_state_context (const re_match_context_t *mctx,
    of errors.  */
 
 static int
-internal_function
 proceed_next_node (const re_match_context_t *mctx, int nregs, regmatch_t *regs,
 		   int *pidx, int node, re_node_set *eps_via_nodes,
 		   struct re_fail_stack_t *fs)
@@ -1340,7 +1306,7 @@ proceed_next_node (const re_match_context_t *mctx, int nregs, regmatch_t *regs,
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 push_fail_stack (struct re_fail_stack_t *fs, int str_idx, int dest_node,
 		 int nregs, regmatch_t *regs, re_node_set *eps_via_nodes)
 {
@@ -1367,7 +1333,6 @@ push_fail_stack (struct re_fail_stack_t *fs, int str_idx, int dest_node,
 }
 
 static int
-internal_function
 pop_fail_stack (struct re_fail_stack_t *fs, int *pidx, int nregs,
 		regmatch_t *regs, re_node_set *eps_via_nodes)
 {
@@ -1387,7 +1352,7 @@ pop_fail_stack (struct re_fail_stack_t *fs, int *pidx, int nregs,
    pmatch[i].rm_so == pmatch[i].rm_eo == -1 for 0 < i < nmatch.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 set_regs (const regex_t *preg, const re_match_context_t *mctx, size_t nmatch,
 	  regmatch_t *pmatch, int fl_backtrack)
 {
@@ -1494,7 +1459,6 @@ set_regs (const regex_t *preg, const re_match_context_t *mctx, size_t nmatch,
 }
 
 static reg_errcode_t
-internal_function
 free_fail_stack_return (struct re_fail_stack_t *fs)
 {
   if (fs)
@@ -1511,7 +1475,6 @@ free_fail_stack_return (struct re_fail_stack_t *fs)
 }
 
 static void
-internal_function
 update_regs (const re_dfa_t *dfa, regmatch_t *pmatch,
 	     regmatch_t *prev_idx_match, int cur_node, int cur_idx, int nmatch)
 {
@@ -1583,7 +1546,6 @@ update_regs (const re_dfa_t *dfa, regmatch_t *pmatch,
   ((state) != NULL && re_node_set_contains (&(state)->nodes, node))
 
 static reg_errcode_t
-internal_function
 sift_states_backward (const re_match_context_t *mctx, re_sift_context_t *sctx)
 {
   reg_errcode_t err;
@@ -1641,7 +1603,7 @@ sift_states_backward (const re_match_context_t *mctx, re_sift_context_t *sctx)
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 build_sifted_states (const re_match_context_t *mctx, re_sift_context_t *sctx,
 		     int str_idx, re_node_set *cur_dest)
 {
@@ -1703,7 +1665,6 @@ build_sifted_states (const re_match_context_t *mctx, re_sift_context_t *sctx,
 /* Helper functions.  */
 
 static reg_errcode_t
-internal_function
 clean_state_log_if_needed (re_match_context_t *mctx, int next_state_log_idx)
 {
   int top = mctx->state_log_top;
@@ -1729,7 +1690,6 @@ clean_state_log_if_needed (re_match_context_t *mctx, int next_state_log_idx)
 }
 
 static reg_errcode_t
-internal_function
 merge_state_array (const re_dfa_t *dfa, re_dfastate_t **dst,
 		   re_dfastate_t **src, int num)
 {
@@ -1756,7 +1716,6 @@ merge_state_array (const re_dfa_t *dfa, re_dfastate_t **dst,
 }
 
 static reg_errcode_t
-internal_function
 update_cur_sifted_state (const re_match_context_t *mctx,
 			 re_sift_context_t *sctx, int str_idx,
 			 re_node_set *dest_nodes)
@@ -1804,7 +1763,7 @@ update_cur_sifted_state (const re_match_context_t *mctx,
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 add_epsilon_src_nodes (const re_dfa_t *dfa, re_node_set *dest_nodes,
 		       const re_node_set *candidates)
 {
@@ -1833,7 +1792,6 @@ add_epsilon_src_nodes (const re_dfa_t *dfa, re_node_set *dest_nodes,
 }
 
 static reg_errcode_t
-internal_function
 sub_epsilon_src_nodes (const re_dfa_t *dfa, int node, re_node_set *dest_nodes,
 		       const re_node_set *candidates)
 {
@@ -1882,7 +1840,6 @@ sub_epsilon_src_nodes (const re_dfa_t *dfa, int node, re_node_set *dest_nodes,
 }
 
 static int
-internal_function
 check_dst_limits (const re_match_context_t *mctx, re_node_set *limits,
 		  int dst_node, int dst_idx, int src_node, int src_idx)
 {
@@ -1918,7 +1875,6 @@ check_dst_limits (const re_match_context_t *mctx, re_node_set *limits,
 }
 
 static int
-internal_function
 check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries,
 			     int subexp_idx, int from_node, int bkref_idx)
 {
@@ -1999,7 +1955,6 @@ check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries,
 }
 
 static int
-internal_function
 check_dst_limits_calc_pos (const re_match_context_t *mctx, int limit,
 			   int subexp_idx, int from_node, int str_idx,
 			   int bkref_idx)
@@ -2029,7 +1984,6 @@ check_dst_limits_calc_pos (const re_match_context_t *mctx, int limit,
    which are against limitations from DEST_NODES. */
 
 static reg_errcode_t
-internal_function
 check_subexp_limits (const re_dfa_t *dfa, re_node_set *dest_nodes,
 		     const re_node_set *candidates, re_node_set *limits,
 		     struct re_backref_cache_entry *bkref_ents, int str_idx)
@@ -2117,7 +2071,7 @@ check_subexp_limits (const re_dfa_t *dfa, re_node_set *dest_nodes,
 }
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 sift_states_bkref (const re_match_context_t *mctx, re_sift_context_t *sctx,
 		   int str_idx, const re_node_set *candidates)
 {
@@ -2217,7 +2171,6 @@ sift_states_bkref (const re_match_context_t *mctx, re_sift_context_t *sctx,
 
 #ifdef RE_ENABLE_I18N
 static int
-internal_function
 sift_states_iter_mb (const re_match_context_t *mctx, re_sift_context_t *sctx,
 		     int node_idx, int str_idx, int max_str_idx)
 {
@@ -2247,7 +2200,7 @@ sift_states_iter_mb (const re_match_context_t *mctx, re_sift_context_t *sctx,
    update the destination of STATE_LOG.  */
 
 static re_dfastate_t *
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 transit_state (reg_errcode_t *err, re_match_context_t *mctx,
 	       re_dfastate_t *state)
 {
@@ -2305,7 +2258,6 @@ transit_state (reg_errcode_t *err, re_match_context_t *mctx,
 
 /* Update the state_log if we need */
 re_dfastate_t *
-internal_function
 merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx,
 		      re_dfastate_t *next_state)
 {
@@ -2384,7 +2336,6 @@ merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx,
    multi-byte match, then look in the log for a state
    from which to restart matching.  */
 re_dfastate_t *
-internal_function
 find_recover_state (reg_errcode_t *err, re_match_context_t *mctx)
 {
   re_dfastate_t *cur_state;
@@ -2415,7 +2366,6 @@ find_recover_state (reg_errcode_t *err, re_match_context_t *mctx)
    correspoding back references.  */
 
 static reg_errcode_t
-internal_function
 check_subexp_matching_top (re_match_context_t *mctx, re_node_set *cur_nodes,
 			   int str_idx)
 {
@@ -2488,7 +2438,6 @@ transit_state_sb (reg_errcode_t *err, re_match_context_t *mctx,
 
 #ifdef RE_ENABLE_I18N
 static reg_errcode_t
-internal_function
 transit_state_mb (re_match_context_t *mctx, re_dfastate_t *pstate)
 {
   const re_dfa_t *const dfa = mctx->dfa;
@@ -2558,7 +2507,6 @@ transit_state_mb (re_match_context_t *mctx, re_dfastate_t *pstate)
 #endif /* RE_ENABLE_I18N */
 
 static reg_errcode_t
-internal_function
 transit_state_bkref (re_match_context_t *mctx, const re_node_set *nodes)
 {
   const re_dfa_t *const dfa = mctx->dfa;
@@ -2672,7 +2620,7 @@ transit_state_bkref (re_match_context_t *mctx, const re_node_set *nodes)
    delay these checking for prune_impossible_nodes().  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 get_subexp (re_match_context_t *mctx, int bkref_node, int bkref_str_idx)
 {
   const re_dfa_t *const dfa = mctx->dfa;
@@ -2821,7 +2769,6 @@ get_subexp (re_match_context_t *mctx, int bkref_node, int bkref_str_idx)
    and SUB_LAST.  */
 
 static reg_errcode_t
-internal_function
 get_subexp_sub (re_match_context_t *mctx, const re_sub_match_top_t *sub_top,
 		re_sub_match_last_t *sub_last, int bkref_node, int bkref_str)
 {
@@ -2850,7 +2797,6 @@ get_subexp_sub (re_match_context_t *mctx, const re_sub_match_top_t *sub_top,
 	 E.g. RE: (a){2}  */
 
 static int
-internal_function
 find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes,
 		  int subexp_idx, int type)
 {
@@ -2872,7 +2818,7 @@ find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes,
    Return REG_NOERROR if it can arrive, or REG_NOMATCH otherwise.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 check_arrival (re_match_context_t *mctx, state_array_t *path, int top_node,
 	       int top_str, int last_node, int last_str, int type)
 {
@@ -3033,7 +2979,7 @@ check_arrival (re_match_context_t *mctx, state_array_t *path, int top_node,
 	 Can't we unify them?  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 check_arrival_add_next_nodes (re_match_context_t *mctx, int str_idx,
 			      re_node_set *cur_nodes, re_node_set *next_nodes)
 {
@@ -3112,7 +3058,6 @@ check_arrival_add_next_nodes (re_match_context_t *mctx, int str_idx,
 */
 
 static reg_errcode_t
-internal_function
 check_arrival_expand_ecl (const re_dfa_t *dfa, re_node_set *cur_nodes,
 			  int ex_subexp, int type)
 {
@@ -3165,7 +3110,7 @@ check_arrival_expand_ecl (const re_dfa_t *dfa, re_node_set *cur_nodes,
    problematic append it to DST_NODES.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 check_arrival_expand_ecl_sub (const re_dfa_t *dfa, re_node_set *dst_nodes,
 			      int target, int ex_subexp, int type)
 {
@@ -3209,7 +3154,7 @@ check_arrival_expand_ecl_sub (const re_dfa_t *dfa, re_node_set *dst_nodes,
    in MCTX->BKREF_ENTS.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 expand_bkref_cache (re_match_context_t *mctx, re_node_set *cur_nodes,
 		    int cur_str, int subexp_num, int type)
 {
@@ -3298,7 +3243,6 @@ expand_bkref_cache (re_match_context_t *mctx, re_node_set *cur_nodes,
    Return 1 if succeeded, otherwise return NULL.  */
 
 static int
-internal_function
 build_trtable (const re_dfa_t *dfa, re_dfastate_t *state)
 {
   reg_errcode_t err;
@@ -3534,7 +3478,6 @@ out_free:
    to DEST_CH[i].  This function return the number of destinations.  */
 
 static int
-internal_function
 group_nodes_into_DFAstates (const re_dfa_t *dfa, const re_dfastate_t *state,
 			    re_node_set *dests_node, bitset_t *dests_ch)
 {
@@ -3728,7 +3671,6 @@ group_nodes_into_DFAstates (const re_dfa_t *dfa, const re_dfastate_t *state,
 # endif
 
 static int
-internal_function
 check_node_accept_bytes (const re_dfa_t *dfa, int node_idx,
 			 const re_string_t *input, int str_idx)
 {
@@ -3966,7 +3908,6 @@ check_node_accept_bytes (const re_dfa_t *dfa, int node_idx,
 
 # ifdef _LIBC
 static unsigned int
-internal_function
 find_collation_sequence_value (const unsigned char *mbs, size_t mbs_len)
 {
   uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
@@ -4029,7 +3970,6 @@ find_collation_sequence_value (const unsigned char *mbs, size_t mbs_len)
    byte of the INPUT.  */
 
 static int
-internal_function
 check_node_accept (const re_match_context_t *mctx, const re_token_t *node,
 		   int idx)
 {
@@ -4079,7 +4019,7 @@ check_node_accept (const re_match_context_t *mctx, const re_token_t *node,
 /* Extend the buffers, if the buffers have run out.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 extend_buffers (re_match_context_t *mctx, int min_len)
 {
   reg_errcode_t ret;
@@ -4144,7 +4084,7 @@ extend_buffers (re_match_context_t *mctx, int min_len)
 /* Initialize MCTX.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 match_ctx_init (re_match_context_t *mctx, int eflags, int n)
 {
   mctx->eflags = eflags;
@@ -4172,7 +4112,6 @@ match_ctx_init (re_match_context_t *mctx, int eflags, int n)
    of the input, or changes the input string.  */
 
 static void
-internal_function
 match_ctx_clean (re_match_context_t *mctx)
 {
   int st_idx;
@@ -4202,7 +4141,6 @@ match_ctx_clean (re_match_context_t *mctx)
 /* Free all the memory associated with MCTX.  */
 
 static void
-internal_function
 match_ctx_free (re_match_context_t *mctx)
 {
   /* First, free all the memory associated with MCTX->SUB_TOPS.  */
@@ -4217,7 +4155,7 @@ match_ctx_free (re_match_context_t *mctx)
 */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 match_ctx_add_entry (re_match_context_t *mctx, int node, int str_idx, int from,
 		     int to)
 {
@@ -4266,7 +4204,6 @@ match_ctx_add_entry (re_match_context_t *mctx, int node, int str_idx, int from,
    found.  Note that MCTX->BKREF_ENTS is already sorted by MCTX->STR_IDX.  */
 
 static int
-internal_function
 search_cur_bkref_entry (const re_match_context_t *mctx, int str_idx)
 {
   int left, right, mid, last;
@@ -4289,7 +4226,7 @@ search_cur_bkref_entry (const re_match_context_t *mctx, int str_idx)
    at STR_IDX.  */
 
 static reg_errcode_t
-internal_function __attribute_warn_unused_result__
+__attribute_warn_unused_result__
 match_ctx_add_subtop (re_match_context_t *mctx, int node, int str_idx)
 {
 #ifdef DEBUG
@@ -4319,7 +4256,6 @@ match_ctx_add_subtop (re_match_context_t *mctx, int node, int str_idx)
    at STR_IDX, whose corresponding OP_OPEN_SUBEXP is SUB_TOP.  */
 
 static re_sub_match_last_t *
-internal_function
 match_ctx_add_sublast (re_sub_match_top_t *subtop, int node, int str_idx)
 {
   re_sub_match_last_t *new_entry;
@@ -4346,7 +4282,6 @@ match_ctx_add_sublast (re_sub_match_top_t *subtop, int node, int str_idx)
 }
 
 static void
-internal_function
 sift_ctx_init (re_sift_context_t *sctx, re_dfastate_t **sifted_sts,
 	       re_dfastate_t **limited_sts, int last_node, int last_str_idx)
 {
diff --git a/posix/spawn_int.h b/posix/spawn_int.h
index c60eb948bb..6ada827f55 100644
--- a/posix/spawn_int.h
+++ b/posix/spawn_int.h
@@ -66,6 +66,6 @@ extern int __spawni (pid_t *pid, const char *path,
 
 /* Return true if FD falls into the range valid for file descriptors.
    The check in this form is mandated by POSIX.  */
-bool __spawn_valid_fd (int fd) internal_function attribute_hidden;
+bool __spawn_valid_fd (int fd) attribute_hidden;
 
 #endif /* _SPAWN_INT_H */
diff --git a/posix/spawn_valid_fd.c b/posix/spawn_valid_fd.c
index eacabfc56d..6e1db5ac10 100644
--- a/posix/spawn_valid_fd.c
+++ b/posix/spawn_valid_fd.c
@@ -21,7 +21,6 @@
 #include <unistd.h>
 
 bool
-internal_function
 __spawn_valid_fd (int fd)
 {
   long maxfd = __sysconf (_SC_OPEN_MAX);
diff --git a/posix/wordexp.c b/posix/wordexp.c
index dfc41736e6..e4cfce9460 100644
--- a/posix/wordexp.c
+++ b/posix/wordexp.c
@@ -64,19 +64,16 @@ extern char **__libc_argv attribute_hidden;
 static int parse_dollars (char **word, size_t *word_length, size_t *max_length,
 			  const char *words, size_t *offset, int flags,
 			  wordexp_t *pwordexp, const char *ifs,
-			  const char *ifs_white, int quoted)
-     internal_function;
+			  const char *ifs_white, int quoted);
 static int parse_backtick (char **word, size_t *word_length,
 			   size_t *max_length, const char *words,
 			   size_t *offset, int flags, wordexp_t *pwordexp,
-			   const char *ifs, const char *ifs_white)
-     internal_function;
+			   const char *ifs, const char *ifs_white);
 static int parse_dquote (char **word, size_t *word_length, size_t *max_length,
 			 const char *words, size_t *offset, int flags,
 			 wordexp_t *pwordexp, const char *ifs,
-			 const char *ifs_white)
-     internal_function;
-static int eval_expr (char *expr, long int *result) internal_function;
+			 const char *ifs_white);
+static int eval_expr (char *expr, long int *result);
 
 /* The w_*() functions manipulate word lists. */
 
@@ -117,7 +114,6 @@ w_addchar (char *buffer, size_t *actlen, size_t *maxlen, char ch)
 }
 
 static char *
-internal_function
 w_addmem (char *buffer, size_t *actlen, size_t *maxlen, const char *str,
 	  size_t len)
 {
@@ -144,7 +140,6 @@ w_addmem (char *buffer, size_t *actlen, size_t *maxlen, const char *str,
 }
 
 static char *
-internal_function
 w_addstr (char *buffer, size_t *actlen, size_t *maxlen, const char *str)
      /* (lengths exclude trailing zero) */
 {
@@ -159,7 +154,6 @@ w_addstr (char *buffer, size_t *actlen, size_t *maxlen, const char *str)
 }
 
 static int
-internal_function
 w_addword (wordexp_t *pwordexp, char *word)
 {
   /* Add a word to the wordlist */
@@ -200,7 +194,6 @@ no_space:
  */
 
 static int
-internal_function
 parse_backslash (char **word, size_t *word_length, size_t *max_length,
 		 const char *words, size_t *offset)
 {
@@ -229,7 +222,6 @@ parse_backslash (char **word, size_t *word_length, size_t *max_length,
 }
 
 static int
-internal_function
 parse_qtd_backslash (char **word, size_t *word_length, size_t *max_length,
 		     const char *words, size_t *offset)
 {
@@ -272,7 +264,6 @@ parse_qtd_backslash (char **word, size_t *word_length, size_t *max_length,
 }
 
 static int
-internal_function
 parse_tilde (char **word, size_t *word_length, size_t *max_length,
 	     const char *words, size_t *offset, size_t wordc)
 {
@@ -379,7 +370,6 @@ parse_tilde (char **word, size_t *word_length, size_t *max_length,
 
 
 static int
-internal_function
 do_parse_glob (const char *glob_word, char **word, size_t *word_length,
 	       size_t *max_length, wordexp_t *pwordexp, const char *ifs,
 	       const char *ifs_white)
@@ -436,7 +426,6 @@ do_parse_glob (const char *glob_word, char **word, size_t *word_length,
 }
 
 static int
-internal_function
 parse_glob (char **word, size_t *word_length, size_t *max_length,
 	    const char *words, size_t *offset, int flags,
 	    wordexp_t *pwordexp, const char *ifs, const char *ifs_white)
@@ -532,7 +521,6 @@ tidy_up:
 }
 
 static int
-internal_function
 parse_squote (char **word, size_t *word_length, size_t *max_length,
 	      const char *words, size_t *offset)
 {
@@ -554,7 +542,6 @@ parse_squote (char **word, size_t *word_length, size_t *max_length,
 
 /* Functions to evaluate an arithmetic expression */
 static int
-internal_function
 eval_expr_val (char **expr, long int *result)
 {
   char *digit;
@@ -589,7 +576,6 @@ eval_expr_val (char **expr, long int *result)
 }
 
 static int
-internal_function
 eval_expr_multdiv (char **expr, long int *result)
 {
   long int arg;
@@ -630,7 +616,6 @@ eval_expr_multdiv (char **expr, long int *result)
 }
 
 static int
-internal_function
 eval_expr (char *expr, long int *result)
 {
   long int arg;
@@ -667,7 +652,6 @@ eval_expr (char *expr, long int *result)
 }
 
 static int
-internal_function
 parse_arith (char **word, size_t *word_length, size_t *max_length,
 	     const char *words, size_t *offset, int flags, int bracket)
 {
@@ -817,7 +801,7 @@ parse_arith (char **word, size_t *word_length, size_t *max_length,
 
 /* Function called by child process in exec_comm() */
 static inline void
-internal_function __attribute__ ((always_inline))
+__attribute__ ((always_inline))
 exec_comm_child (char *comm, int *fildes, int showerr, int noexec)
 {
   const char *args[4] = { _PATH_BSHELL, "-c", comm, NULL };
@@ -875,7 +859,6 @@ exec_comm_child (char *comm, int *fildes, int showerr, int noexec)
 /* Function to execute a command and retrieve the results */
 /* pwordexp contains NULL if field-splitting is forbidden */
 static int
-internal_function
 exec_comm (char *comm, char **word, size_t *word_length, size_t *max_length,
 	   int flags, wordexp_t *pwordexp, const char *ifs,
 	   const char *ifs_white)
@@ -1109,7 +1092,6 @@ no_space:
 }
 
 static int
-internal_function
 parse_comm (char **word, size_t *word_length, size_t *max_length,
 	    const char *words, size_t *offset, int flags, wordexp_t *pwordexp,
 	    const char *ifs, const char *ifs_white)
@@ -1197,7 +1179,6 @@ parse_comm (char **word, size_t *word_length, size_t *max_length,
   (memchr (char_set "", ch, sizeof (char_set) - 1) != NULL)
 
 static int
-internal_function
 parse_param (char **word, size_t *word_length, size_t *max_length,
 	     const char *words, size_t *offset, int flags, wordexp_t *pwordexp,
 	     const char *ifs, const char *ifs_white, int quoted)
@@ -2026,7 +2007,6 @@ do_error:
 #undef CHAR_IN_SET
 
 static int
-internal_function
 parse_dollars (char **word, size_t *word_length, size_t *max_length,
 	       const char *words, size_t *offset, int flags,
 	       wordexp_t *pwordexp, const char *ifs, const char *ifs_white,
@@ -2085,7 +2065,6 @@ parse_dollars (char **word, size_t *word_length, size_t *max_length,
 }
 
 static int
-internal_function
 parse_backtick (char **word, size_t *word_length, size_t *max_length,
 		const char *words, size_t *offset, int flags,
 		wordexp_t *pwordexp, const char *ifs, const char *ifs_white)
@@ -2149,7 +2128,6 @@ parse_backtick (char **word, size_t *word_length, size_t *max_length,
 }
 
 static int
-internal_function
 parse_dquote (char **word, size_t *word_length, size_t *max_length,
 	      const char *words, size_t *offset, int flags,
 	      wordexp_t *pwordexp, const char * ifs, const char * ifs_white)
diff --git a/sysdeps/posix/ttyname.c b/sysdeps/posix/ttyname.c
index 288e22b307..b7497f3976 100644
--- a/sysdeps/posix/ttyname.c
+++ b/sysdeps/posix/ttyname.c
@@ -28,13 +28,12 @@
 char *__ttyname;
 
 static char *getttyname (int fd, dev_t mydev, ino_t myino,
-			 int save, int *dostat) internal_function;
+			 int save, int *dostat);
 
 
 libc_freeres_ptr (static char *getttyname_name);
 
 static char *
-internal_function
 getttyname (int fd, dev_t mydev, ino_t myino, int save, int *dostat)
 {
   static const char dev[] = "/dev";
diff --git a/sysdeps/posix/ttyname_r.c b/sysdeps/posix/ttyname_r.c
index 56bf18e4bc..2d10bf65d6 100644
--- a/sysdeps/posix/ttyname_r.c
+++ b/sysdeps/posix/ttyname_r.c
@@ -33,10 +33,9 @@ static const char dev[] = "/dev";
 
 static int getttyname_r (int fd, char *buf, size_t buflen,
 			 dev_t mydev, ino_t myino, int save,
-			 int *dostat) __THROW internal_function;
+			 int *dostat) __THROW;
 
 static int
-internal_function
 getttyname_r (int fd, char *buf, size_t buflen, dev_t mydev, ino_t myino,
 	      int save, int *dostat)
 {
diff --git a/sysdeps/unix/sysv/linux/preadv.c b/sysdeps/unix/sysv/linux/preadv.c
index ecabc8c9c6..d03ce8dc5c 100644
--- a/sysdeps/unix/sysv/linux/preadv.c
+++ b/sysdeps/unix/sysv/linux/preadv.c
@@ -33,7 +33,7 @@ preadv (int fd, const struct iovec *vector, int count, off_t offset)
 }
 # else
 static ssize_t __atomic_preadv_replacement (int, const struct iovec *,
-					    int, off_t) internal_function;
+					    int, off_t);
 ssize_t
 preadv (int fd, const struct iovec *vector, int count, off_t offset)
 {
@@ -45,7 +45,7 @@ preadv (int fd, const struct iovec *vector, int count, off_t offset)
 #  endif
   return __atomic_preadv_replacement (fd, vector, count, offset);
 }
-#  define PREADV static internal_function __atomic_preadv_replacement
+#  define PREADV static __atomic_preadv_replacement
 #  define PREAD __pread
 #  define OFF_T off_t
 #  include <sysdeps/posix/preadv_common.c>
diff --git a/sysdeps/unix/sysv/linux/preadv64.c b/sysdeps/unix/sysv/linux/preadv64.c
index c96b2142e3..00997da99c 100644
--- a/sysdeps/unix/sysv/linux/preadv64.c
+++ b/sysdeps/unix/sysv/linux/preadv64.c
@@ -31,7 +31,7 @@ preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
 }
 #else
 static ssize_t __atomic_preadv64_replacement (int, const struct iovec *,
-					      int, off64_t) internal_function;
+					      int, off64_t);
 ssize_t
 preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
@@ -43,7 +43,7 @@ preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
 #endif
   return __atomic_preadv64_replacement (fd, vector, count, offset);
 }
-# define PREADV static internal_function __atomic_preadv64_replacement
+# define PREADV static __atomic_preadv64_replacement
 # define PREAD __pread64
 # define OFF_T off64_t
 # include <sysdeps/posix/preadv_common.c>
diff --git a/sysdeps/unix/sysv/linux/pwritev.c b/sysdeps/unix/sysv/linux/pwritev.c
index 7545cb3e1e..cfe65068ae 100644
--- a/sysdeps/unix/sysv/linux/pwritev.c
+++ b/sysdeps/unix/sysv/linux/pwritev.c
@@ -33,7 +33,7 @@ pwritev (int fd, const struct iovec *vector, int count, off_t offset)
 }
 # else
 static ssize_t __atomic_pwritev_replacement (int, const struct iovec *,
-					     int, off_t) internal_function;
+					     int, off_t);
 ssize_t
 pwritev (int fd, const struct iovec *vector, int count, off_t offset)
 {
@@ -45,7 +45,7 @@ pwritev (int fd, const struct iovec *vector, int count, off_t offset)
 #  endif
   return __atomic_pwritev_replacement (fd, vector, count, offset);
 }
-#  define PWRITEV static internal_function __atomic_pwritev_replacement
+#  define PWRITEV static __atomic_pwritev_replacement
 #  define PWRITE __pwrite
 #  define OFF_T off_t
 #  include <sysdeps/posix/pwritev_common.c>
diff --git a/sysdeps/unix/sysv/linux/pwritev64.c b/sysdeps/unix/sysv/linux/pwritev64.c
index 9dc4e55f96..a7cec4e144 100644
--- a/sysdeps/unix/sysv/linux/pwritev64.c
+++ b/sysdeps/unix/sysv/linux/pwritev64.c
@@ -31,7 +31,7 @@ pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
 }
 #else
 static ssize_t __atomic_pwritev64_replacement (int, const struct iovec *,
-					       int, off64_t) internal_function;
+					       int, off64_t);
 ssize_t
 pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
@@ -43,7 +43,7 @@ pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
 #endif
   return __atomic_pwritev64_replacement (fd, vector, count, offset);
 }
-# define PWRITEV static internal_function __atomic_pwritev64_replacement
+# define PWRITEV static __atomic_pwritev64_replacement
 # define PWRITE __pwrite64
 # define OFF_T off64_t
 # include <sysdeps/posix/pwritev_common.c>
diff --git a/sysdeps/unix/sysv/linux/ttyname.c b/sysdeps/unix/sysv/linux/ttyname.c
index 5909cb765f..116cf350e5 100644
--- a/sysdeps/unix/sysv/linux/ttyname.c
+++ b/sysdeps/unix/sysv/linux/ttyname.c
@@ -36,14 +36,12 @@ char *__ttyname;
 #endif
 
 static char *getttyname (const char *dev, dev_t mydev,
-			 ino64_t myino, int save, int *dostat)
-     internal_function;
-
+			 ino64_t myino, int save, int *dostat);
 
 libc_freeres_ptr (static char *getttyname_name);
 
 static char *
-internal_function attribute_compat_text_section
+attribute_compat_text_section
 getttyname (const char *dev, dev_t mydev, ino64_t myino, int save, int *dostat)
 {
   static size_t namelen;
diff --git a/sysdeps/unix/sysv/linux/ttyname_r.c b/sysdeps/unix/sysv/linux/ttyname_r.c
index dc863526ba..18f35ef2b7 100644
--- a/sysdeps/unix/sysv/linux/ttyname_r.c
+++ b/sysdeps/unix/sysv/linux/ttyname_r.c
@@ -32,10 +32,10 @@
 
 static int getttyname_r (char *buf, size_t buflen,
 			 dev_t mydev, ino64_t myino, int save,
-			 int *dostat) internal_function;
+			 int *dostat);
 
 static int
-internal_function attribute_compat_text_section
+attribute_compat_text_section
 getttyname_r (char *buf, size_t buflen, dev_t mydev, ino64_t myino,
 	      int save, int *dostat)
 {