[MacPorts] #21583: libxml2 2.7.4 +universal. Pkg-config error

[MacPorts]

#21583: libxml2 2.7.4 +universal. Pkg-config error
----------------------------------+-----------------------------------------
  Reporter:  huw@…                |       Owner:  cedric.luthi@…        
      Type:  defect               |      Status:  reopened              
  Priority:  Normal               |   Milestone:                        
 Component:  ports                |     Version:                        
Resolution:                       |    Keywords:  snowleopard           
      Port:  libxml2              |  
----------------------------------+-----------------------------------------
Changes (by ryandesign@…):

 * cc: ryandesign@… (added)
  * status:  closed => reopened
  * resolution:  fixed =>


Old description:

> pkg-config --libs libxml-2.0
> displays "Libs.private field occurs twice in
> '/opt/local/lib/pkgconfig/libxml-2.0.pc'" with the universal variant of
> libxml2 installed on Snow Leopard.
>
> The libxml-2.0.pc file contains:
>
> #ifndef __LP64__
> Libs.private: -lpthread   -liconv -lm
> #else /* __LP64__ */
> Libs.private: -lpthread -lz  -liconv -lm
> #endif /* __LP64__ */
>
> and the preprocessor directives are evidently confusing pkg-config.

New description:

 {{{
 pkg-config --libs libxml-2.0
 }}}
 displays "Libs.private field occurs twice in
 '/opt/local/lib/pkgconfig/libxml-2.0.pc'" with the universal variant of
 libxml2 installed on Snow Leopard.

 The libxml-2.0.pc file contains:

 {{{
 #ifndef __LP64__
 Libs.private: -lpthread   -liconv -lm
 #else /* __LP64__ */
 Libs.private: -lpthread -lz  -liconv -lm
 #endif /* __LP64__ */
 }}}

 and the preprocessor directives are evidently confusing pkg-config.

--

Comment:

 This will occur if you try to install libxml2 +universal but you have not
 installed its dependencies +universal. The
 [attachment:libxml2-archcheck.diff attached patch] could be used to ensure
 users encounter a proper error message for this situation for libxml2
 (instead of libxml2 silently installing files that won't work right),
 until a [ticket:20728 proper fix] for this exists in MacPorts base.

-- 
Ticket URL: <http://trac.macports.org/ticket/21583#comment:4>
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