[GRASS-dev] r.viewshed does not compile in GRASS 7 either

[Michael Barton]

Got it. I'll do that. Thanks. Maybe we are close with temporal too.

Michael
____________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity 
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University

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On Sep 3, 2012, at 3:08 PM, William Kyngesburye <woklist at kyngchaos.com>
 wrote:

> On Sep 3, 2012, at 4:53 PM, Michael Barton wrote:
> 
>> On Sep 3, 2012, at 2:42 PM, William Kyngesburye <woklist at kyngchaos.com>
>> wrote:
>> 
>>> Just tried something - it's definitely a clang problem.  Probably more strict, as I thought, about some C++ stuff by default.
>>> 
>>> It was working for me because of how Apple has the dev tools set up and how GRASS configure detects cc/c++.  For me, on Lion/Xcode 4.3, I have a bunch of symlinks:
>>> 
>>> /usr/bin/cc -> /usr/bin/clang
>>> /usr/bin/c++ -> /usr/bin/clang
>>> /usr/bin/gcc -> /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
>>> /usr/bin/g++ -> /usr/llvm-gcc-4.2/bin/llvm-g++-4.2
>>> 
>>> And it appears that GRASS is preferring gcc/g++ in configuration.  llvm, as I understand, is more of an intermediate compiler made to closely emulate gcc behavior.
>>> 
>>> Maybe on Mt Lion, those symlinks are different so that GRASS uses clang instead of llvm.  It's possible I have leftovers from a previous Xcode.
>>> 
>>> What did GRASS find for CC and CXX?  (see include/make/platform.make)
>> 
>> 
>> CC                  = gcc [could this be a problem???]
>> CXX                 = c++
> 
> 
> no, CXX is the problem (r.terraform and r.viewshed are C++). It should be g++ so it's using llvm.  If GRASS is finding c++ by default, force it to what you want - add to your configure:
> 
> CXX=g++
> 
> -----
> William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
> http://www.kyngchaos.com/
> 
> "Time is an illusion - lunchtime doubly so."
> 
> - Ford Prefect
> 
>