Sync support files from GNULIB.

3 files changed, 6 insertions, 36 deletions

diff --git a/support/ChangeLog b/support/ChangeLog
index 55af128c..3824197e 100644
--- a/support/ChangeLog
+++ b/support/ChangeLog
@@ -1,3 +1,7 @@
+2019-04-23         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* regcomp.c, regex_internal.h: Sync from GNULIB.
+
 2019-04-12         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* ChangeLog.0: Rotated ChangeLog into this file.
diff --git a/support/regcomp.c b/support/regcomp.c
index 631b70d1..7525355a 100644
--- a/support/regcomp.c
+++ b/support/regcomp.c
@@ -233,9 +233,7 @@ re_compile_pattern (const char *pattern, size_t length,
     return NULL;
   return gettext (__re_error_msgid + __re_error_msgid_idx[(int) ret]);
 }
-#ifdef _LIBC
 weak_alias (__re_compile_pattern, re_compile_pattern)
-#endif
 
 /* Set by 're_set_syntax' to the current regexp syntax to recognize.  Can
    also be assigned to arbitrarily: each pattern buffer stores its own
@@ -260,9 +258,7 @@ re_set_syntax (reg_syntax_t syntax)
   re_syntax_options = syntax;
   return ret;
 }
-#ifdef _LIBC
 weak_alias (__re_set_syntax, re_set_syntax)
-#endif
 
 int
 re_compile_fastmap (struct re_pattern_buffer *bufp)
@@ -281,9 +277,7 @@ re_compile_fastmap (struct re_pattern_buffer *bufp)
   bufp->fastmap_accurate = 1;
   return 0;
 }
-#ifdef _LIBC
 weak_alias (__re_compile_fastmap, re_compile_fastmap)
-#endif
 
 static inline void
 __attribute__ ((always_inline))
@@ -464,7 +458,7 @@ re_compile_fastmap_iter (regex_t *bufp, const re_dfastate_t *init_state,
    the return codes and their meanings.)  */
 
 int
-regcomp (regex_t *_Restrict_ preg, const char *_Restrict_ pattern, int cflags)
+regcomp (regex_t *__restrict preg, const char *__restrict pattern, int cflags)
 {
   reg_errcode_t ret;
   reg_syntax_t syntax = ((cflags & REG_EXTENDED) ? RE_SYNTAX_POSIX_EXTENDED
@@ -515,16 +509,14 @@ regcomp (regex_t *_Restrict_ preg, const char *_Restrict_ pattern, int cflags)
 
   return (int) ret;
 }
-#ifdef _LIBC
 libc_hidden_def (__regcomp)
 weak_alias (__regcomp, regcomp)
-#endif
 
 /* Returns a message corresponding to an error code, ERRCODE, returned
    from either regcomp or regexec.   We don't use PREG here.  */
 
 size_t
-regerror (int errcode, const regex_t *_Restrict_ preg, char *_Restrict_ errbuf,
+regerror (int errcode, const regex_t *__restrict preg, char *__restrict errbuf,
 	  size_t errbuf_size)
 {
   const char *msg;
@@ -555,9 +547,7 @@ regerror (int errcode, const regex_t *_Restrict_ preg, char *_Restrict_ errbuf,
 
   return msg_size;
 }
-#ifdef _LIBC
 weak_alias (__regerror, regerror)
-#endif
 
 
 #ifdef RE_ENABLE_I18N
@@ -657,10 +647,8 @@ regfree (regex_t *preg)
   re_free (preg->translate);
   preg->translate = NULL;
 }
-#ifdef _LIBC
 libc_hidden_def (__regfree)
 weak_alias (__regfree, regfree)
-#endif
 
 /* Entry points compatible with 4.2 BSD regex library.  We don't define
    them unless specifically requested.  */
diff --git a/support/regex_internal.h b/support/regex_internal.h
index fee1c84f..5462419b 100644
--- a/support/regex_internal.h
+++ b/support/regex_internal.h
@@ -144,13 +144,8 @@
 # define __mbrtowc mbrtowc
 # define __wcrtomb wcrtomb
 # define __regfree regfree
-# define attribute_hidden
 #endif /* not _LIBC */
 
-#if __GNUC__ < 3 + (__GNUC_MINOR__ < 1)
-# define __attribute__(arg)
-#endif
-
 #ifndef SSIZE_MAX
 # define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
 #endif
@@ -868,23 +863,6 @@ re_string_elem_size_at (const re_string_t *pstr, Idx idx)
 }
 #endif /* RE_ENABLE_I18N */
 
-#ifndef __GNUC_PREREQ
-# if defined __GNUC__ && defined __GNUC_MINOR__
-#  define __GNUC_PREREQ(maj, min) \
-         ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
-# else
-#  define __GNUC_PREREQ(maj, min) 0
-# endif
-#endif
-
-#if __GNUC_PREREQ (3,4)
-# undef __attribute_warn_unused_result__
-# define __attribute_warn_unused_result__ \
-   __attribute__ ((__warn_unused_result__))
-#else
-# define __attribute_warn_unused_result__ /* empty */
-#endif
-
 #ifndef FALLTHROUGH
 # if __GNUC__ < 7
 #  define FALLTHROUGH ((void) 0)