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Re: FW: libtool devel package still dll crippled.
- From: Christopher Faylor <cgf-cygwin at cygwin dot com>
- To: cygwin-apps at cygwin dot com
- Cc: cygwin at cygwin dot com
- Date: Sun, 21 Apr 2002 13:52:42 -0400
- Subject: Re: FW: libtool devel package still dll crippled.
- References: <005e01c1e774$2dab05d0$651c440a@BRAMSCHE> <005901c1e958$207ecfa0$651c440a@BRAMSCHE>
- Reply-to: cygwin at cygwin dot com
Forwarding to the correct mailing list.
cgf
On Sun, Apr 21, 2002 at 07:15:25PM +0200, Ralf Habacker wrote:
>>>ld checks the symbols in the shared libs during compile time to see if
>>>it can resolve all symbols and appearantly also detects duplicated
>>>symbols. On Linux it is not necassery impossible to have two libs that
>>>define the same symbols. E.g. this feature can be used to override
>>>the malloc implementation of libc. Of course when this happens
>>>inadvertently it can lead to unexpected behaviour/crashes. ELF (The
>>>linking format used on Linux) has rather complex rules for determining
>>>which symbol should be used if it is defined multiple times. It also
>>>distinguishes between weak and strong symbols. It might be that it is
>>>only possible to override weak-symbols and that multiple strong-symbols
>>>result in link-errors.
>>
>>Does the cygwin ld has some similar rules ?
>>
>Is nobody on this list, who can give an answer to this question ?
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