Including full path to shared library in the executable file

Larry Hall (Cygwin) reply-to-list-only-lh@cygwin.com
Thu May 23 03:10:00 GMT 2013


On 5/22/2013 11:24 AM, Corinna Vinschen wrote:
> On May 22 10:58, Christopher Faylor wrote:
>> On Wed, May 22, 2013 at 10:47:11AM +0200, Corinna Vinschen wrote:
>>> On May 21 21:43, Balaji Venkataraman wrote:
>>>> On Tue, May 21, 2013 at 9:19 PM, Balaji Venkataraman wrote:
>>>>
>>>>> My question is whether there is a way to include the full path to the .dll
>>>>> while creating the .exe - much like how cmake "link_directories" or
>>>>> "target_link_libraries" allows you to - for e.g. on Linux (an ldd on the
>>>>> executable file shows the full path to the .so file and thus
>>>>> precludes the need to explicitly set LD_LIBRARY_PATH). While this is not a
>>>>> cmake question (or a cmake mailing list) if you have experience solving
>>>>> this problem using cmake, would appreciate those insights as well.
>>>>
>>>> I found this while looking for cygwin RPATH:
>>>> http://www.cmake.org/pipermail/cmake/2007-October/017267.html. Perhaps
>>>> the lack of RPATH support on Windows/Cygwin is the reason?
>>>
>>> RPATH is an ELF feature.  Full paths to DLLs are not supported by the
>>> PE/COFF executable format.  Also, Cygwin DLLs are still loaded by the
>>> Windows loader, so POSIX paths won't work, and full Windows paths won't
>>> make much sense, given that Cygwin is not always installed into
>>> C:\cygwin.
>>>
>>> The solution for this would be an ELF loader in Cygwin and a Cygwin
>>> linker which produces ELF DLLs by default.  But that's quite a big
>>> project on its own and nobody seemed to have fun, time, or money, to
>>> implement this.
>>
>> So, maybe *next* Thursday then?
>
> Alas, I still have no cat...

Can someone *please* donate a cat for Corinna?

-- 
Larry

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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