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Date: Fri, 12 Dec 2025 20:30:23 +0900
To: cygwin AT cygwin DOT com
Subject: Re: Updated: swig-4.4.1-1
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From: Takashi Yano via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
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On Thu, 11 Dec 2025 19:03:24 +0100
Marco Atzeri wrote:
> Version 4.4.1-1 of
> 
>     swig
> 
> have been uploaded for cygwin.

Both version 4.4.0-1 and 4.4.1-1 fail to build "unbound".

Steps to reproduce:
1) Download source package of unbound and extract it.
2) Run "cygport unbound all".
3) Then the build fails.

Downgrading swig to 4.3.1-1 solves the issue. The direct
cause of the issue seems to be failure of macro(?) expansion.

py3/libunbound/python/libunbound_wrap.c in the build directory
has lines:

  //printf("resolve_start(%lX)\n",(long unsigned int)arg1);
  Py_BEGIN_ALLOW_THREADS
  $function
  Py_END_ALLOW_THREADS
  //printf("resolve_stop()\n");

where "$function" remains unexpanded.

With swig 4.3.1-1, these lines are:

  //printf("resolve_start(%lX)\n",(long unsigned int)arg1);
  Py_BEGIN_ALLOW_THREADS
  result = (int)ub_resolve(arg1,(char const *)arg2,arg3,arg4,arg5);
  Py_END_ALLOW_THREADS
  //printf("resolve_stop()\n");

I'm not sure where the problem is, I mean, swig or unbound.
Any idea?

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

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