1*1424dfb3Schristos#serial 16 2*1424dfb3Schristos 3*1424dfb3Schristos# Use Gnulib's robust chdir function. 4*1424dfb3Schristos# It can handle arbitrarily long directory names, which means 5*1424dfb3Schristos# that when it is given the name of an existing directory, it 6*1424dfb3Schristos# never fails with ENAMETOOLONG. 7*1424dfb3Schristos# Arrange to compile chdir-long.c only on systems that define PATH_MAX. 8*1424dfb3Schristos 9*1424dfb3Schristosdnl Copyright (C) 2004-2007, 2009-2020 Free Software Foundation, Inc. 10*1424dfb3Schristosdnl This file is free software; the Free Software Foundation 11*1424dfb3Schristosdnl gives unlimited permission to copy and/or distribute it, 12*1424dfb3Schristosdnl with or without modifications, as long as this notice is preserved. 13*1424dfb3Schristos 14*1424dfb3Schristos# Written by Jim Meyering. 15*1424dfb3Schristos 16*1424dfb3SchristosAC_DEFUN([gl_FUNC_CHDIR_LONG], 17*1424dfb3Schristos[ 18*1424dfb3Schristos AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) 19*1424dfb3Schristos AC_CACHE_CHECK([whether this system has an arbitrary file name length limit], 20*1424dfb3Schristos [gl_cv_have_arbitrary_file_name_length_limit], 21*1424dfb3Schristos [AC_EGREP_CPP([have_arbitrary_file_name_length_limit], 22*1424dfb3Schristos gl_PATHMAX_SNIPPET[ 23*1424dfb3Schristos#ifdef PATH_MAX 24*1424dfb3Schristoshave_arbitrary_file_name_length_limit 25*1424dfb3Schristos#endif], 26*1424dfb3Schristos [gl_cv_have_arbitrary_file_name_length_limit=yes], 27*1424dfb3Schristos [gl_cv_have_arbitrary_file_name_length_limit=no])]) 28*1424dfb3Schristos]) 29*1424dfb3Schristos 30*1424dfb3SchristosAC_DEFUN([gl_PREREQ_CHDIR_LONG], [:]) 31