Dunno the apt-rpm C++ issue well enuf to know the answer with the  
change I just committed.

Note that rpmdsSingle() declaration was outside

#ifdef __cplusplus
extern C {
#endif
...
#ifdef __cplusplus
}
#endif

wrapping. So I think that might have been the root cause of the apt-rpm
infinite loop.

Again, I'm as clueless as possible wrto C++ issues. C for me, life's  
too short.

hth

73 de Jeff

On Jul 18, 2008, at 9:05 AM, Bernhard Rosenkraenzer wrote:

>   RPM Package Manager, CVS Repository
>   http://rpm5.org/cvs/
>    
> ______________________________________________________________________ 
> ______
>
>   Server: rpm5.org                         Name:   Bernhard  
> Rosenkraenzer
>   Root:   /v/rpm/cvs                       Email:  bero@rpm5.org
>   Module: rpm                              Date:   18-Jul-2008  
> 15:05:34
>   Branch: rpm-5_1                          Handle: 2008071813053400
>
>   Modified files:           (Branch: rpm-5_1)
>     rpm                     CHANGES
>     rpm/lib                 rpm4compat.h
>
>   Log:
>     rpm4compat.h needs to #include <rpmds.h> -- if it doesn't, the  
> overloaded
>     rpmdsSingle in C++ calls itself instead of rpm5 rpmdsSingle,  
> causing an infinite
>     loop. Affects e.g. apt-rpm
>
>     Obtained from: my earlier commit in HEAD
>
>   Summary:
>     Revision    Changes     Path
>     1.2288.2.72 +1  -0      rpm/CHANGES
>     2.10.2.1    +2  -1      rpm/lib/rpm4compat.h
>    
> ______________________________________________________________________ 
> ______
>
>   patch -p0 <<'@@ .'
>   Index: rpm/CHANGES
>    
> ====================================================================== 
> ======
>   $ cvs diff -u -r1.2288.2.71 -r1.2288.2.72 CHANGES
>   --- rpm/CHANGES	18 Jul 2008 09:29:14 -0000	1.2288.2.71
>   +++ rpm/CHANGES	18 Jul 2008 13:05:34 -0000	1.2288.2.72
>   @@ -1,4 +1,5 @@
>    5.1.4 -> 5.1.5:
>   +    - bero: Fix hang when using rpmdsSingle and rpm4compat.h  
> from C++
>        - rse: configure: do not complain with "python: file not  
> found" on platforms without python(1) in PATH
>
>    5.1.3 -> 5.1.4:
>   @@ .
>   patch -p0 <<'@@ .'
>   Index: rpm/lib/rpm4compat.h
>    
> ====================================================================== 
> ======
>   $ cvs diff -u -r2.10 -r2.10.2.1 rpm4compat.h
>   --- rpm/lib/rpm4compat.h	2 Apr 2008 02:24:06 -0000	2.10
>   +++ rpm/lib/rpm4compat.h	18 Jul 2008 13:05:34 -0000	2.10.2.1
>   @@ -1,7 +1,7 @@
>    /*
>     * Copyright © 2008 Per Øyvind Karlsen <peroyvind@mandriva.org>
>     *
>   - * $Id: rpm4compat.h,v 2.10 2008/04/02 02:24:06 pkarlsen Exp $
>   + * $Id: rpm4compat.h,v 2.10.2.1 2008/07/18 13:05:34 bero Exp $
>     */
>
>    #ifndef	H_RPM4COMPAT
>   @@ -48,6 +48,7 @@
>    #include <rpm/rpmevr.h>
>    #include <rpm/pkgio.h>
>    #include <rpm/rpmcb.h>
>   +#include <rpm/rpmds.h>
>    #include <rpm/rpmts.h>
>    #include <rpm/rpmmacro.h>
>    #include <rpm/rpmpgp.h>
>   @@ .
> ______________________________________________________________________
> RPM Package Manager                                    http://rpm5.org
> CVS Sources Repository                                rpm-cvs@rpm5.org