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Message-ID:	<42F0F80E.6060308@familiehaase.de>
Date:	Wed, 03 Aug 2005 18:59:58 +0200
From:	"Gerrit P. Haase" <gerrit AT familiehaase DOT de>
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To:	Harald Joerg <harald DOT joerg AT fujitsu-siemens DOT com>
CC:	cygwin AT cygwin DOT com
Subject:	Re: error compiling apache-1.3.33 with mod_perl and perl-5.8.7-1
References:	<42D0178C DOT 6070803 AT familiehaase DOT de> <20050709131329 DOT GC3284 AT postle DOT net> <kvacjzozk1 DOT fsf AT mcp0147c DOT mch DOT fsc DOT net>
In-Reply-To:	<kvacjzozk1.fsf@mcp0147c.mch.fsc.net>
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Harald Joerg wrote:

> (Sorry, maybe I can't get the references right since I'm replying to
> the article found at
> <http://sourceware.org/ml/cygwin/2005-07/msg00397.html>)
> 
> 
>>Bruno Postle wrote:
> 
> 
>>>I can't build apache-1.3.33 and mod_perl-1.29 with perl-5.8.7-1
> 
> 
>>>(it builds ok if I downgrade cygwin to perl-5.8.6-4)
> 
> 
>>>Steps to reproduce:
> 
> 
>>>  tar -zxf apache_1.3.33.tar.gz
>>>  tar -zxf mod_perl-1.0-current.tar.gz
>>>  cd mod_perl-1.29/
>>>  perl Makefile.PL DO_HTTPD=1 USE_APACI=1
>>>  make
> 
> 
>>>[...]
>>>undefined reference to `_boot_'
>>
>>Info: resolving _optarg by linking to __imp__optarg (auto-import)
>>collect2: ld returned 1 exit status 
> 
> 
>>_boot_?  Boot what?  Win32CORE?  However, this was already included with
>> the 5.8.6 release.
> 
> 
>>$ nm /usr/lib/perl5/5.8/cygwin/auto/DynaLoader/DynaLoader.a | grep boot
>>00000810 T _boot_DynaLoader
> 
> 
>>$ nm /usr/lib/perl5/5.8/cygwin/auto/Win32CORE/Win32CORE.a  | grep boot
>>00004c70 T _boot_Win32CORE
> 
> 
>>Something broken with generating the code for perlxsi?
> 
> 
> That's what it seems to be - though it actually is a consequence of
> something strange in the build process of Perl itself.
> 
> Looks like a patch in cygwin.sh is causing the troubles
> (from p587w32core.patch):
> 
> ===========================================================================
> --- perl-5.8.6/hints/cygwin.sh.orig	2004-02-22 14:07:58.000000000 -0800
> +++ perl-5.8.6/hints/cygwin.sh	2004-12-08 20:52:01.891572800 -0800
> @@ -57,3 +57,4 @@
>  ldflags="$ldflags -s"
>  ccdlflags="$ccdlflags -s"
>  lddlflags="$lddlflags -s"
> +static_ext="$static_ext Win32CORE"
> 
> --- perl-5.8.7/cygwin/cygwin.c.orig	2005-04-22 12:54:18.000000000 +0200
> ===========================================================================
> 
> If $static_ext was empty, it is now " Win32CORE", with a leading space.
> When building perlxsi.c, ExtUtils::Embed splits $static_ext, which
> according to Perl's rules, creates two elements: '' and 'Win32CORE'.
> The empty element creates a line in perlxsi.c which calls for 'boot_'.
> 
> Ouch.

IMO a bug in ExtUtils::Embed.


> I don't know enough about building perl - especially I've no idea
> whether the sequence of static_ext is of any importance.  Maybe the
> following is a simple solution:
> 
> ===========================================================================
> --- perl-5.8.6/hints/cygwin.sh.orig	2004-02-22 14:07:58.000000000 -0800
> +++ perl-5.8.6/hints/cygwin.sh.haj	2004-12-08 20:52:01.891572800 -0800
> @@ -57,3 +57,4 @@
>  ldflags="$ldflags -s"
>  ccdlflags="$ccdlflags -s"
>  lddlflags="$lddlflags -s"
> +static_ext="Win32CORE $static_ext"
> 
> --- perl-5.8.7/cygwin/cygwin.c.orig	2005-04-22 12:54:18.000000000 +0200
> ===========================================================================


Should do it.  I'll change it for future releases.
Many thanks.  Now that I read it I remember having trouble with this
already after Win32CORE was included.


> I have just built perl this way with build.sh from the source package
> with the following test results:
> 
> Failed 5 test scripts out of 916, 99.45% okay.
> Failed 4/946 test scripts, 99.58% okay. 254/101134 subtests failed, 99.75% okay.
> 
> Maybe the failures are caused by my system's setup, or maybe they are
> cygwin-intrinsic... I don't know.
> 
> mod_perl can be built with my perl 5.8.7, though I have not yet tested
> any applications yet.
> 
> PS: Actually I haven't been intending to compile mod_perl when I found
> the article quoted here.  I simply have been trying to compile another
> extension (mod_auth_kerb), found that cygwin's vanilla Apache doesn't
> have symbols to link against, and decided to start from scratch with
> Google's help.  I have been looking for the configuration options
> which have been used to build cygwin's Apache but failed - following
> Bruno's recipe above creates a statically linked httpd.exe and no
> libhttpd.dll.  Would mod_perl work with a mod_so setup as well?

Yes it should work.  Have you tried to link directly against the DLL?


Gerrit
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