m4/canonicalize-lgpl.m4

   1 # canonicalize-lgpl.m4 serial 5
   2 dnl Copyright (C) 2003, 2006-2007, 2009 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 AC_DEFUN([gl_CANONICALIZE_LGPL],
   8 [
   9   dnl Do this replacement check manually because the file name is shorter
  10   dnl than the function name.
  11   AC_CHECK_DECLS_ONCE([canonicalize_file_name])
  12   AC_CHECK_FUNCS_ONCE([canonicalize_file_name])
  13   if test $ac_cv_func_canonicalize_file_name = no; then
  14     AC_LIBOBJ([canonicalize-lgpl])
  15     AC_DEFINE([realpath], [rpl_realpath],
  16       [Define to a replacement function name for realpath().])
  17     gl_PREREQ_CANONICALIZE_LGPL
  18   fi
  19 ])
  20
  21 # Like gl_CANONICALIZE_LGPL, except prepare for separate compilation
  22 # (no AC_LIBOBJ).
  23 AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE],
  24 [
  25   AC_CHECK_DECLS_ONCE([canonicalize_file_name])
  26   AC_CHECK_FUNCS_ONCE([canonicalize_file_name])
  27   gl_PREREQ_CANONICALIZE_LGPL
  28 ])
  29
  30 # Prerequisites of lib/canonicalize-lgpl.c.
  31 AC_DEFUN([gl_PREREQ_CANONICALIZE_LGPL],
  32 [
  33   AC_CHECK_HEADERS_ONCE([sys/param.h unistd.h])
  34   AC_CHECK_FUNCS_ONCE([getcwd readlink])
  35 ])