1# dup.m4 serial 3 2dnl Copyright (C) 2011-2014 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_FUNC_DUP], 8[ 9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) 10 AC_REQUIRE([gl_MSVC_INVAL]) 11 if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then 12 REPLACE_DUP=1 13 fi 14 dnl Replace dup() for supporting the gnulib-defined fchdir() function, 15 dnl to keep fchdir's bookkeeping up-to-date. 16 m4_ifdef([gl_FUNC_FCHDIR], [ 17 gl_TEST_FCHDIR 18 if test $HAVE_FCHDIR = 0; then 19 REPLACE_DUP=1 20 fi 21 ]) 22]) 23 24# Prerequisites of lib/dup.c. 25AC_DEFUN([gl_PREREQ_DUP], [:]) 26