Bug #94935 for Syntax-Feature-Loop: Undefined reference to `_imp__C8K61oRQKxigiqmUlVdk

Tue Apr 22 15:05:16 2014 the.rob.dixon [...] gmail.com - Ticket created

Subject:	Syntax::Feature::Loop Build Error on Windows
Date:	Tue, 22 Apr 2014 20:05:08 +0100
To:	bug-Syntax-Feature-Loop [...] rt.cpan.org
From:	Rob Dixon <the.rob.dixon [...] gmail.com>

I am having a problem building Syntax::Feature::Loop v1.6.0 on Windows 7 SP1. I am running Strawberry Perl 5 version 16.2. Using `cpan install Syntax::Feature::Loop`, the relevant part of the log is attached. The root problem being that g++ is returning undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1' twice during both the build and the test phase. Rather oddly, cpan says IKEGAMI/Syntax-Feature-Loop-v1.6.0.tar.gz C:\strawberry\perl\bin\perl.exe ./Build -- OK after the build, when I would expect it to fail and refuse to run the test. Thank you for looking at this. Rob Dixon Norfolk England

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Tue Apr 22 21:22:17 2014 IKEGAMI [...] cpan.org - Correspondence added

Subject:

undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1'

I'm sure the problem is due to using gcc for some files and g++ for others, though I don't know how you got into the situation. I don't have any further for a week, but do remind me then! In the meantime, can you provide the output of perl -V (uppercase "V").

Tue Apr 22 21:22:17 2014 The RT System itself - Status changed from 'new' to 'open'

Tue Apr 22 21:22:18 2014 IKEGAMI [...] cpan.org - Taken

Tue Apr 22 21:22:49 2014 IKEGAMI [...] cpan.org - Subject changed from 'Syntax::Feature::Loop Build Error on Windows' to 'Undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1''

Tue Apr 22 21:27:35 2014 IKEGAMI [...] cpan.org - Correspondence added

As for "./Build -- OK", that's a problem with Module::Build. I've been told (buy its maintainers) that Module::Build is no longer the way to go and that I should switch to ExtUtils::MakeMaker. It's on my todo list, but it's not very high priority. I'll switch installer the next time I make a change to the module.

Wed Apr 23 05:44:50 2014 the.rob.dixon [...] gmail.com - Correspondence added

Subject:	Re: [rt.cpan.org #94935] undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1'
Date:	Wed, 23 Apr 2014 10:44:40 +0100
To:	bug-Syntax-Feature-Loop [...] rt.cpan.org
From:	Rob Dixon <the.rob.dixon [...] gmail.com>

Thank you for a swift reply. I can't imagine that I have done anything to change the compiler that `dmake` uses, but anything is possible. I've attached the output of perl -V Rob On 23 April 2014 02:22, ikegami via RT <bug-Syntax-Feature-Loop@rt.cpan.org> wrote: Show quoted text

> <URL: https://rt.cpan.org/Ticket/Display.html?id=94935 > > > I'm sure the problem is due to using gcc for some files and g++ for others, though I don't know how you got into the situation. I don't have any further for a week, but do remind me then! In the meantime, can you provide the output of perl -V (uppercase "V"). >

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Wed Apr 23 09:20:27 2014 IKEGAMI [...] cpan.org - Correspondence added

On Wed Apr 23 05:44:50 2014, the.rob.dixon@gmail.com wrote: Show quoted text

> Thank you for a swift reply. > > I can't imagine that I have done anything to change the compiler that > `dmake` uses, but anything is possible.

It's not the choice of compiler so much as the mix of two compilers. You use a C compiler to create Loop.o, but you use a C++ linker to create Loop.dll. The linker expects certain symbols to be present in the C++ object file but doesn't find them. I'll look into why there are two compilers involved after this weekend is over.

Thu Apr 24 04:41:47 2014 the.rob.dixon [...] gmail.com - Correspondence added

Subject:	Re: [rt.cpan.org #94935] Undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1'
Date:	Thu, 24 Apr 2014 09:41:38 +0100
To:	bug-Syntax-Feature-Loop [...] rt.cpan.org
From:	Rob Dixon <the.rob.dixon [...] gmail.com>

Here's the build.bat that it creates in case it's of any use (renamed so that the mailer will accept it) On 23 April 2014 14:20, ikegami via RT <bug-Syntax-Feature-Loop@rt.cpan.org> wrote: Show quoted text

> <URL: https://rt.cpan.org/Ticket/Display.html?id=94935 > > > On Wed Apr 23 05:44:50 2014, the.rob.dixon@gmail.com wrote:

>> Thank you for a swift reply. >> >> I can't imagine that I have done anything to change the compiler that >> `dmake` uses, but anything is possible.

> > It's not the choice of compiler so much as the mix of two compilers. > > You use a C compiler to create Loop.o, but you use a C++ linker to create Loop.dll. The linker expects certain symbols to be present in the C++ object file but doesn't find them. > > I'll look into why there are two compilers involved after this weekend is over. > > >

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Bug #94935 for Syntax-Feature-Loop: Undefined reference to `_imp__C8K61oRQKxigiqmUlVdk_scp1'