m4/memrchr.m4

   1 # memrchr.m4 serial 10
   2 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2014 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], [:])