# getcwd.m4 - check for working getcwd that is compatible with glibc
-# Copyright (C) 2001, 2003-2007, 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003-2007, 2009-2018 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Written by Paul Eggert.
-# serial 12
+# serial 15
AC_DEFUN([gl_FUNC_GETCWD_NULL],
[
AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result],
[gl_cv_func_getcwd_null],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+# include <stdlib.h>
# if HAVE_UNISTD_H
# include <unistd.h>
# else /* on Windows with MSVC */
if (! f)
return 2;
if (f[0] != '/')
- return 3;
+ { free (f); return 3; }
if (f[1] != '\0')
- return 4;
+ { free (f); return 4; }
+ free (f);
return 0;
}
#endif
[gl_cv_func_getcwd_null=yes],
[gl_cv_func_getcwd_null=no],
[[case "$host_os" in
- # Guess yes on glibc systems.
- *-gnu*) gl_cv_func_getcwd_null="guessing yes";;
- # Guess yes on Cygwin.
- cygwin*) gl_cv_func_getcwd_null="guessing yes";;
- # If we don't know, assume the worst.
- *) gl_cv_func_getcwd_null="guessing no";;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_getcwd_null="guessing yes";;
+ # Guess yes on Cygwin.
+ cygwin*) gl_cv_func_getcwd_null="guessing yes";;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_getcwd_null="guessing no";;
esac
]])])
])
dnl Define HAVE_MINIMALLY_WORKING_GETCWD and HAVE_PARTLY_WORKING_GETCWD
dnl if appropriate.
case "$gl_cv_func_getcwd_path_max" in
- "no, it has the AIX bug") ;;
+ "no"|"no, it has the AIX bug") ;;
*)
AC_DEFINE([HAVE_MINIMALLY_WORKING_GETCWD], [1],
[Define to 1 if getcwd minimally works, that is, its result can be
[Define to 1 if getcwd works, except it sometimes fails when it
shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT.])
;;
+ "yes, but with shorter paths")
+ AC_DEFINE([HAVE_GETCWD_SHORTER], [1],
+ [Define to 1 if getcwd works, but with shorter paths
+ than is generally tested with the replacement.])
+ ;;
esac
if { case "$gl_cv_func_getcwd_null" in *yes) false;; *) true;; esac; } \
|| test $gl_cv_func_getcwd_posix_signature != yes \
- || test "$gl_cv_func_getcwd_path_max" != yes \
+ || { case "$gl_cv_func_getcwd_path_max" in *yes*) false;; *) true;; esac; } \
|| test $gl_abort_bug = yes; then
REPLACE_GETCWD=1
fi