Mercurial > hg > octave-nkf > gnulib-hg
changeset 5781:36910c70b223
Return success on systems such as Cygwin
where no absolute path name can be longer than PATH_MAX.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Tue, 29 Mar 2005 07:21:40 +0000 |
| parents | 5892180b4360 |
| children | ec79f98d03e9 |
| files | m4/getcwd-path-max.m4 |
| diffstat | 1 files changed, 9 insertions(+), 5 deletions(-) [+] |
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--- a/m4/getcwd-path-max.m4 +++ b/m4/getcwd-path-max.m4 @@ -1,4 +1,4 @@ -#serial 7 +#serial 8 # Check for several getcwd bugs with long paths. # If so, arrange to compile the wrapper function. @@ -6,7 +6,7 @@ # I've heard that this is due to a Linux kernel bug, and that it has # been fixed between 2.4.21-pre3 and 2.4.21-pre4. */ -# Copyright (C) 2003, 2004 Free Software Foundation, Inc. +# Copyright (C) 2003, 2004, 2005 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. @@ -98,11 +98,15 @@ char *c = NULL; cwd_len += DIR_NAME_SIZE; - /* If mkdir or chdir fails, be pessimistic and consider that - as a failure, too. */ + /* If mkdir or chdir fails, it could be that this system cannot create + any file with an absolute name longer than PATH_MAX, such as cygwin. + If so, leave fail as 0, because the current working directory can't + be too long for getcwd if it can't even be created. For other + errors, be pessimistic and consider that as a failure, too. */ if (mkdir (DIR_NAME, S_IRWXU) < 0 || chdir (DIR_NAME) < 0) { - fail = 2; + if (! (errno == ERANGE || is_ENAMETOOLONG (errno))) + fail = 2; break; }