Add obstack-printf and obstack-printf-posix modules. * modules/obstack-printf: New file. * modules/obstack-printf-posix: Likewise. * MODULES.html.sh (Misc): Mention them. * doc/glibc-functions/obstack_printf.texi (obstack_printf): Likewise. * doc/glibc-functions/obstack_vprintf.texi (obstack_vprintf): Likewise. * modules/stdio (Makefile.am): Accomodate new modules. * m4/stdio_h.m4 (gl_STDIO_H_DEFAULTS): Likewise. * lib/stdio.in.h (rpl_obstack_printf, rpl_obstack_vprintf): Declare. * lib/obstack_printf.c (obstack_printf, obstack_vprintf): New functions. * m4/obstack-printf.m4 (gl_OBSTACK_PRINTF) (gl_REPLACE_OBSTACK_PRINTF): New macros * m4/obstack-printf-posix.m4 (gl_OBSTACK_PRINTF_POSIX): Likewise. * tests/test-obstack-printf.c: New file. * modules/obstack-printf-tests: Likewise. * modules/obstack-printf-posix-tests: Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>

#serial 11

# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 Free Software
# Foundation, Inc.

# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

dnl Written by Jim Meyering

AC_DEFUN([gl_FUNC_GROUP_MEMBER],
[
  dnl Persuade glibc <unistd.h> to declare group_member().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  dnl Do this replacement check manually because I want the hyphen
  dnl (not the underscore) in the filename.
  AC_CHECK_FUNC(group_member, , [
    AC_LIBOBJ(group-member)
    gl_PREREQ_GROUP_MEMBER
  ])
])

# Prerequisites of lib/group-member.c.
AC_DEFUN([gl_PREREQ_GROUP_MEMBER],
[
  AC_REQUIRE([AC_FUNC_GETGROUPS])
])