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Date: Thu, 17 Nov 2011 20:33:53 +0000
From: Dave Korn <dave DOT korn DOT cygwin AT gmail DOT com>
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Subject: Re: Problems with updating nearly any package meant for Cygwin or using packages such as libtool
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On 17/11/2011 13:00, marco atzeri wrote:

> the problem is that the configure scripts incorrectly looks for
> libpcre.so that on cygwin is called differently:
> 
> /usr/bin/cygpcre-0.dll
> 
> so you need to modify the configure accordingly or
> remove the test and leave only the check for "pcre.h"
> 
> same for libidn     /usr/bin/cygidn-11.dll
> 
> libpq     /usr/bin/cygpq.dll
> 
> and so on.
> These are upstream bugs in configure, looking for the lib
> is wrong as different platforms have different conventions.
> They should only look for the header.

  Well, they could look for the lib too, as long as they used the correct
autoconf macro (AC_CHECK_LIB or AC_SEARCH_LIB) to do so.  Rather than try
searching in arbitrary and unknown places for unknown file names, that just
tries running a compile with the relevant -l flag and seeing if it succeeds -
which for the purposes of the build is more definitively accurate anyway.


    cheers,
      DaveK


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