[CMake] TGZ installer following links

[Eric Noulard]

2011/6/17 John R. Cary <cary at txcorp.com>:
> I just found another person who had the same problem:
>
> http://www.cmake.org/pipermail/cmake/2007-July/015024.html
>
> Does not look like there was ever a response to this?

Yes you seem right now back in 2007 CPack TGZ wasn't using the same
method to package TGZ.. but keep reading

> On 6/17/11 8:46 AM, John R. Cary wrote:
>>
>> On 6/16/11 2:15 PM, Eric Noulard wrote:
>>>
>>> I never used install(CODE ... but besides that this should work.
>>> did you have a look at the symlinks found in the CPack temp install dir:
>>>
>>> _CPack_Packages/<xxx>/TGZ/<yyy>
>>>
>>> are they local as they should be or are they pointing to some absolute
>>> path.
>>
>> They are correct in the directory:
>>
>> octet.cary$ pwd
>>
>> /home/research/cary/projects/composerall/builds/vorpalcomposer/ser/_CPack_Packages/Linux/TGZ
>> octet.cary$ ls -ls
>> vorpal-4.3.0-r17099-composer-r452-Linux-x86_64.orig/Contents/
>> total 24
>> 0 lrwxrwxrwx 1 cary research   13 2011-06-17 04:31 current -> Foo/current
>> 4 drwxrwsr-x 4 cary research 4096 2011-06-17 04:31 Foo
>> octet.cary$
>>
>> as links, but untarring the tarball shows that they were tarred as
>> directories,
>>
>> octet.cary$ ls -ls
>> vorpal-4.3.0-r17099-composer-r452-Linux-x86_64/Contents/
>> total 32
>> 4 drwxrwxr-x 5 cary research 4096 2011-06-17 07:39 current
>> 4 drwxrwxr-x 5 cary research 4096 2011-06-17 07:38 Foo
>>
>> as if tar had been called with '-h'.
>>
>> Does CPack use tar?   Is there any way to control the options that
>> the tarring code is called with?

No it does not use tar.
CPack is using libarchive (http://code.google.com/p/libarchive/)
[in fact there is a copy of libarchive inside cmake source).

For TAR based archive (TGZ, TBZ2) the "restricted pax" is used:
http://code.google.com/p/libarchive/wiki/ManPageLibarchiveFormats5

Moreover as noted before I do generate TGZ which includes symlinks without
trouble so there must be something different in your case.

Could you provide us a standalone minimal test case which exhibit the problem?

-- 
Erk
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