[bpt/emacs.git] / m4 / memrchr.m4

# memrchr.m4 serial 10
dnl Copyright (C) 2002-2003, 2005-2007, 2009-2013 Free Software Foundation,
dnl 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_MEMRCHR],
[
  dnl Persuade glibc <string.h> to declare memrchr().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
  AC_CHECK_DECLS_ONCE([memrchr])
  if test $ac_cv_have_decl_memrchr = no; then
    HAVE_DECL_MEMRCHR=0
  fi

  AC_CHECK_FUNCS([memrchr])
])

# Prerequisites of lib/memrchr.c.
AC_DEFUN([gl_PREREQ_MEMRCHR], [:])
Commit	Line	Data
a84b7c53 PE	1	# memrchr.m4 serial 10
	2	dnl Copyright (C) 2002-2003, 2005-2007, 2009-2013 Free Software Foundation,
	3	dnl Inc.
	4	dnl This file is free software; the Free Software Foundation
	5	dnl gives unlimited permission to copy and/or distribute it,
	6	dnl with or without modifications, as long as this notice is preserved.
	7
	8	AC_DEFUN([gl_FUNC_MEMRCHR],
	9	[
	10	dnl Persuade glibc <string.h> to declare memrchr().
	11	AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
	12
	13	AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
	14	AC_CHECK_DECLS_ONCE([memrchr])
	15	if test $ac_cv_have_decl_memrchr = no; then
	16	HAVE_DECL_MEMRCHR=0
	17	fi
	18
	19	AC_CHECK_FUNCS([memrchr])
	20	])
	21
	22	# Prerequisites of lib/memrchr.c.
	23	AC_DEFUN([gl_PREREQ_MEMRCHR], [:])