[MacPorts] #31664: g95 configure build failure with OSX Lion and Xcode 4.2

[MacPorts]

#31664: g95 configure build failure with OSX Lion and Xcode 4.2
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 Reporter:  bv_sunshine@…          |       Owner:  takeshi@…           
     Type:  defect                 |      Status:  new                 
 Priority:  Normal                 |   Milestone:                      
Component:  ports                  |     Version:  2.0.3               
 Keywords:                         |        Port:  g95                 
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Changes (by ryandesign@…):

  * owner:  macports-tickets@… => takeshi@…
  * port:  => g95


Old description:

> Building g95 on OSX Lion and Xcode 4.2 fails with the following error
> messages:
>
> ../../gcc/toplev.c:539:1: error: redefinition of a 'extern inline'
> function 'floor_log2' is not supported in C99 mode
> ../../gcc/toplev.c:574:1: error: redefinition of a 'extern inline'
> function 'exact_log2' is not supported in C99 mode
>
> main.log attached

New description:

 Building g95 on OSX Lion and Xcode 4.2 fails with the following error
 messages:

 {{{
 ../../gcc/toplev.c:539:1: error: redefinition of a 'extern inline'
 function 'floor_log2' is not supported in C99 mode
 ../../gcc/toplev.c:574:1: error: redefinition of a 'extern inline'
 function 'exact_log2' is not supported in C99 mode
 }}}

 main.log attached

--

Comment:

 You could try building g95 with llvm-gcc-4.2 instead of the default clang:

 {{{
 sudo port clean g95
 sudo port install g95 configure.compiler=llvm-gcc-4.2
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/31664#comment:1>
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