1 files changed, 128 insertions, 23 deletions

diff --git a/gl/strings.in.h b/gl/strings.in.h
index 2b3e062a..fd7cd2df 100644
--- a/gl/strings.in.h
+++ b/gl/strings.in.h
@@ -1,6 +1,6 @@
 /* A substitute <strings.h>.
 
-   Copyright (C) 2007-2024 Free Software Foundation, Inc.
+   Copyright (C) 2007-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -36,7 +36,7 @@
 #ifndef _@GUARD_PREFIX@_STRINGS_H
 #define _@GUARD_PREFIX@_STRINGS_H
 
-/* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
+/* This file uses _GL_ARG_NONNULL, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
 #if !_GL_CONFIG_H_INCLUDED
  #error "Please include config.h first."
 #endif
@@ -46,6 +46,16 @@
 # include <stddef.h>
 #endif
 
+#if @GNULIB_STRCASECMP_L@ || @GNULIB_STRNCASECMP_L@
+/* Get locale_t.  */
+# include <locale.h>
+# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ < 10) \
+      || (defined __APPLE__ && defined __MACH__))
+/* Get the declaration of strcasecmp_l.  */
+#  include <string.h>
+# endif
+#endif
+
 
 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 
@@ -58,66 +68,161 @@ extern "C" {
 #endif
 
 
-  /* Find the index of the least-significant set bit.  */
 #if @GNULIB_FFS@
+/* Find the index of the least-significant set bit.  */
 # if !@HAVE_FFS@
-_GL_FUNCDECL_SYS (ffs, int, (int i));
+_GL_FUNCDECL_SYS (ffs, int, (int i), );
 # endif
 _GL_CXXALIAS_SYS (ffs, int, (int i));
 _GL_CXXALIASWARN (ffs);
 #elif defined GNULIB_POSIXCHECK
-# undef ffs
 # if HAVE_RAW_DECL_FFS
 _GL_WARN_ON_USE (ffs, "ffs is not portable - use the ffs module");
 # endif
 #endif
 
+#if @GNULIB_STRCASECMP@
 /* Compare strings S1 and S2, ignoring case, returning less than, equal to or
    greater than zero if S1 is lexicographically less than, equal to or greater
    than S2.
    Note: This function does not work in multibyte locales.  */
-#if ! @HAVE_STRCASECMP@
-extern int strcasecmp (char const *s1, char const *s2)
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-#if defined GNULIB_POSIXCHECK
+# if @REPLACE_STRCASECMP@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strcasecmp
+#   define strcasecmp rpl_strcasecmp
+#  endif
+_GL_FUNCDECL_RPL (strcasecmp, int, (const char *, const char *),
+                                   _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (strcasecmp, int, (const char *, const char *));
+# else
+#  if !@HAVE_STRCASECMP@
+_GL_FUNCDECL_SYS (strcasecmp, int, (const char *, const char *),
+                                   _GL_ARG_NONNULL ((1, 2)));
+#  endif
+_GL_CXXALIAS_SYS (strcasecmp, int, (const char *, const char *));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (strcasecmp);
+# endif
+#elif defined GNULIB_POSIXCHECK
 /* strcasecmp() does not work with multibyte strings:
    POSIX says that it operates on "strings", and "string" in POSIX is defined
    as a sequence of bytes, not of characters.   */
-# undef strcasecmp
 # if HAVE_RAW_DECL_STRCASECMP
 _GL_WARN_ON_USE (strcasecmp, "strcasecmp cannot work correctly on character "
-                 "strings in multibyte locales - "
+                 "strings in multibyte locales and is unportable - "
                  "use mbscasecmp if you care about "
-                 "internationalization, or use c_strcasecmp , "
-                 "gnulib module c-strcase) if you want a locale "
+                 "internationalization, or use c_strcasecmp "
+                 "(gnulib module c-strcasecmp) if you want a locale "
                  "independent function");
 # endif
 #endif
 
+#if @GNULIB_STRCASECMP_L@
+# if @REPLACE_STRCASECMP_L@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strcasecmp_l
+#   define strcasecmp_l rpl_strcasecmp_l
+#  endif
+_GL_FUNCDECL_RPL (strcasecmp_l, int,
+                  (const char *s1, const char *s2, locale_t locale),
+                  _GL_ARG_NONNULL ((1, 2, 3)));
+_GL_CXXALIAS_RPL (strcasecmp_l, int,
+                  (const char *s1, const char *s2, locale_t locale));
+# else
+#  if !@HAVE_STRCASECMP_L@
+_GL_FUNCDECL_SYS (strcasecmp_l, int,
+                  (const char *s1, const char *s2, locale_t locale),
+                  _GL_ARG_NONNULL ((1, 2, 3)));
+#  endif
+_GL_CXXALIAS_SYS (strcasecmp_l, int,
+                  (const char *s1, const char *s2, locale_t locale));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (strcasecmp_l);
+# endif
+#elif defined GNULIB_POSIXCHECK
+/* strcasecmp_l() does not work with multibyte strings:
+   POSIX says that it operates on "strings", and "string" in POSIX is defined
+   as a sequence of bytes, not of characters.   */
+# if HAVE_RAW_DECL_STRCASECMP_L
+_GL_WARN_ON_USE (strcasecmp_l, "strcasecmp_l cannot work correctly on "
+                 "character strings in multibyte locales and is unportable - "
+                 "use gnulib module strcasecmp_l for portability");
+# endif
+#endif
+
+#if @GNULIB_STRNCASECMP@
 /* Compare no more than N bytes of strings S1 and S2, ignoring case,
    returning less than, equal to or greater than zero if S1 is
    lexicographically less than, equal to or greater than S2.
    Note: This function cannot work correctly in multibyte locales.  */
-#if ! @HAVE_DECL_STRNCASECMP@
-extern int strncasecmp (char const *s1, char const *s2, size_t n)
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-#if defined GNULIB_POSIXCHECK
+# if @REPLACE_STRNCASECMP@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strncasecmp
+#   define strncasecmp rpl_strncasecmp
+#  endif
+_GL_FUNCDECL_RPL (strncasecmp, int, (const char *, const char *, size_t),
+                                    _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (strncasecmp, int, (const char *, const char *, size_t));
+# else
+#  if !@HAVE_DECL_STRNCASECMP@
+_GL_FUNCDECL_SYS (strncasecmp, int, (const char *, const char *, size_t),
+                                    _GL_ARG_NONNULL ((1, 2)));
+#  endif
+_GL_CXXALIAS_SYS (strncasecmp, int, (const char *, const char *, size_t));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (strncasecmp);
+# endif
+#elif defined GNULIB_POSIXCHECK
 /* strncasecmp() does not work with multibyte strings:
    POSIX says that it operates on "strings", and "string" in POSIX is defined
    as a sequence of bytes, not of characters.  */
-# undef strncasecmp
 # if HAVE_RAW_DECL_STRNCASECMP
 _GL_WARN_ON_USE (strncasecmp, "strncasecmp cannot work correctly on character "
-                 "strings in multibyte locales - "
+                 "strings in multibyte locales and is unportable - "
                  "use mbsncasecmp or mbspcasecmp if you care about "
-                 "internationalization, or use c_strncasecmp , "
-                 "gnulib module c-strcase) if you want a locale "
+                 "internationalization, or use c_strncasecmp "
+                 "(gnulib module c-strncasecmp) if you want a locale "
                  "independent function");
 # endif
 #endif
 
+#if @GNULIB_STRNCASECMP_L@
+# if @REPLACE_STRNCASECMP_L@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strncasecmp_l
+#   define strncasecmp_l rpl_strncasecmp_l
+#  endif
+_GL_FUNCDECL_RPL (strncasecmp_l, int,
+                  (const char *s1, const char *s2, size_t n, locale_t locale),
+                  _GL_ARG_NONNULL ((1, 2, 4)));
+_GL_CXXALIAS_RPL (strncasecmp_l, int,
+                  (const char *s1, const char *s2, size_t n, locale_t locale));
+# else
+#  if !@HAVE_STRNCASECMP_L@
+_GL_FUNCDECL_SYS (strncasecmp_l, int,
+                  (const char *s1, const char *s2, size_t n, locale_t locale),
+                  _GL_ARG_NONNULL ((1, 2, 4)));
+#  endif
+_GL_CXXALIAS_SYS (strncasecmp_l, int,
+                  (const char *s1, const char *s2, size_t n, locale_t locale));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (strncasecmp_l);
+# endif
+#elif defined GNULIB_POSIXCHECK
+/* strncasecmp_l() does not work with multibyte strings:
+   POSIX says that it operates on "strings", and "string" in POSIX is defined
+   as a sequence of bytes, not of characters.   */
+# if HAVE_RAW_DECL_STRNCASECMP_L
+_GL_WARN_ON_USE (strncasecmp_l, "strncasecmp_l cannot work correctly on "
+                 "character strings in multibyte locales and is unportable - "
+                 "use gnulib module strncasecmp_l for portability");
+# endif
+#endif
+
 
 #ifdef __cplusplus
 }