gnulib: add module stpcpy

* lib/stpcpy.c, m4/stpcpy.m4: New files.
* lib/Makefile.am, m4/gnulib-cache.m4, m4/gnulib-comp.m4: Update.

lib/Makefile.am

@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=tools --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files argmatch argp error gethrxtime isatty mkstemp progname sys_wait
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=tools --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files argmatch argp error gethrxtime isatty mkstemp progname stpcpy sys_wait
 
 AUTOMAKE_OPTIONS = 1.9.6 gnits
 
@@ -1043,6 +1043,15 @@ EXTRA_DIST += stdlib.in.h
 
 ## end   gnulib module stdlib
 
+## begin gnulib module stpcpy
+
+
+EXTRA_DIST += stpcpy.c
+
+EXTRA_libgnu_la_SOURCES += stpcpy.c
+
+## end   gnulib module stpcpy
+
 ## begin gnulib module strcase
 
 

lib/stpcpy.c

@@ -0,0 +1,49 @@
+/* stpcpy.c -- copy a string and return pointer to end of new string
+   Copyright (C) 1992, 1995, 1997-1998, 2006, 2009-2013 Free Software
+   Foundation, Inc.
+
+   NOTE: The canonical source of this file is maintained with the GNU C Library.
+   Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 3 of the License, or any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#undef __stpcpy
+#ifdef _LIBC
+# undef stpcpy
+#endif
+
+#ifndef weak_alias
+# define __stpcpy stpcpy
+#endif
+
+/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST.  */
+char *
+__stpcpy (char *dest, const char *src)
+{
+  register char *d = dest;
+  register const char *s = src;
+
+  do
+    *d++ = *s;
+  while (*s++ != '\0');
+
+  return d - 1;
+}
+#ifdef weak_alias
+weak_alias (__stpcpy, stpcpy)
+#endif

m4/gnulib-cache.m4

@@ -27,7 +27,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=tools --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files argmatch argp error gethrxtime isatty mkstemp progname sys_wait
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=tools --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files argmatch argp error gethrxtime isatty mkstemp progname stpcpy sys_wait
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
@@ -39,6 +39,7 @@ gl_MODULES([
   isatty
   mkstemp
   progname
+  stpcpy
   sys_wait
 ])
 gl_AVOID([])

m4/gnulib-comp.m4

@@ -103,6 +103,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module stdint:
   # Code from module stdio:
   # Code from module stdlib:
+  # Code from module stpcpy:
   # Code from module strcase:
   # Code from module strchrnul:
   # Code from module streq:
@@ -307,6 +308,12 @@ AC_SUBST([LTALLOCA])
   gl_STDINT_H
   gl_STDIO_H
   gl_STDLIB_H
+  gl_FUNC_STPCPY
+  if test $HAVE_STPCPY = 0; then
+    AC_LIBOBJ([stpcpy])
+    gl_PREREQ_STPCPY
+  fi
+  gl_STRING_MODULE_INDICATOR([stpcpy])
   gl_STRCASE
   if test $HAVE_STRCASECMP = 0; then
     AC_LIBOBJ([strcasecmp])
@@ -595,6 +602,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/stdint.in.h
   lib/stdio.in.h
   lib/stdlib.in.h
+  lib/stpcpy.c
   lib/strcasecmp.c
   lib/strchrnul.c
   lib/strchrnul.valgrind
@@ -699,6 +707,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/stdint_h.m4
   m4/stdio_h.m4
   m4/stdlib_h.m4
+  m4/stpcpy.m4
   m4/strcase.m4
   m4/strchrnul.m4
   m4/strerror.m4

m4/stpcpy.m4

@@ -0,0 +1,25 @@
+# stpcpy.m4 serial 8
+dnl Copyright (C) 2002, 2007, 2009-2013 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STPCPY],
+[
+  dnl Persuade glibc <string.h> to declare stpcpy().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  dnl The stpcpy() declaration in lib/string.in.h uses 'restrict'.
+  AC_REQUIRE([AC_C_RESTRICT])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_FUNCS([stpcpy])
+  if test $ac_cv_func_stpcpy = no; then
+    HAVE_STPCPY=0
+  fi
+])
+
+# Prerequisites of lib/stpcpy.c.
+AC_DEFUN([gl_PREREQ_STPCPY], [
+  :
+])