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Re: RFA: libtool.m4

From: Kai Tietz
Subject: Re: RFA: libtool.m4
Date: Wed, 29 Apr 2009 09:26:05 +0200

2009/4/28 Ralf Wildenhues <address@hidden>:
> [ adding bug-libtool; you can remove gcc-patches from followups ]
> * Kai Tietz wrote on Tue, Apr 28, 2009 at 02:29:12PM CEST:
>> >> In the libtool.m4 in function _LT_CHECK_MAGIC_METHOD the current check
>> >> for mingw doesn't treat the x64 proper.
>> >> It checks for 'file_magic file format pei*-i386(.*architecture:
>> >> i386)?', what is right for 32-bit mingw, but for 64-bit version this
>> >> string needs to be changed to something like 'file_magic file format
>> >> pei*(.*architecture: i386)?'
>> I did the libtool testsuite run for w64 target and found no serious
>> issues (as I expected). But the underlying issue isn't tested in the
>> suite at all my initial post is pointing on. The problem is that the
>> pattern used (and so also in libtool itself) for detection if a dll
>> (windows shared object) is generated is wrong.
> So, can you devise a short example, or ideally even a testsuite addition
> to git Libtool that exposes this issue?  Alternatively, describe the
> situation in which you encountered it.
>> in aclocal.m4 there is the line
>> 'lt_cv_deplibs_check_method='file_magic file format
>> pei*-i386(.*architecture: i386)?'
>> which doesn't fit for 64-bit dlls.
>> lt_cv_deplibs_check_method='file_magic file format
>> pei*-(i386|x86_64)(.*architecture: i386)?'
>> If you are interest in the testrun files, please tell me. I can sent
>> them to you.
> If there are no testsuite failures, then no, I don't need them.  Thanks.
> Cheers,
> Ralf

Hello Ralf,

we found another issue about the pattern used for pe-i386 and the file
patterns for x86_64. JonY from the mingw-w64 team will continue this
thread and he will take care .
about it.


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