Re: Building Octave on Mac OS 10.10 (Yosemite)

[Alexander Hansen]

On 10/19/14, 4:59 PM, Ben Abbott wrote:
> > On Oct 19, 2014, at 7:57 PM, Ben Abbott <address@hidden> wrote:
> >
> > For any who upgrade to Yosemite (MacOS 10.10), it is necessary to install Xcode 
> > 6.1 and the command line tools (i.e. not Xcode 6.0.1).  The 6.1 release 
> > includes a fix that allows cmake to be built, cmake is needed to build gl2ps.
> >
> > I had to download the Xcode 6.1 tools directly from Apple's developers website.
> >
> >         https://developer.apple.com/downloads/index.action#
> >
> > Ben
>
> I just noticed the command line tools for Xcode 6.1 are beta 3.
>
> Ben

I've had consistent problems building Octave-3.6.4 or 3.8.2 with any 6.x 
Xcode Command Line Tools.  The error is of the following form ("oct-cxx" 
is really clang++ --I'm using wrapper scripts to make maintenance easier 
for me-- and we're using libc++ to build all of our C++ libraries 
because it's the default on OS X 10.9 and later:

libtool: compile:  oct-cxx -DHAVE_CONFIG_H -I. -I.. -I./array 
-I./cruft/misc -Inumeric -I./numeric -Ioperators -I./operators 
-I./system -I./util -I../libgnu -I../libgnu -I/usr/X11/include 
-I/sw/include -Wall -W -Wshadow -Wold-style-cast -Wformat 
-Wpointer-arith -Wwrite-strings -Wcast-align -Wcast-qual -O3 -MD 
-D_THREAD_SAFE -pthread -MT array/array_libarray_la-int32NDArray.lo -MD 
-MP -MF array/.deps/array_libarray_la-int32NDArray.Tpo -c 
array/int32NDArray.cc  -fno-common -DPIC -o 
array/.libs/array_libarray_la-int32NDArray.o
In file included from array/int16NDArray.cc:28:
In file included from ./array/int16NDArray.h:26:
In file included from ./array/intNDArray.h:26:
In file included from ./array/MArray.h:28:
In file included from ./array/Array.h:32:
In file included from 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/algorithm:624:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/type_traits:1169:21: 
error:
      call to '__test' is ambiguous
   typedef decltype(__test(declval<_Tp>())) type;

My understanding is that Macports has determined that this a clang bug 
and has blacklisted the Xcode Command Line Tools version 6 or newer 
(optional on 10.9, mandatory on 10.10) to build Octave for this reason.

Is this something which has been addressed in the post-3.8.2 Octave 
code?  Or is this not triggered on Yosemite?  Or would I have to use 
libstdc++, in which case I'll blacklist Xcode >= 6 and Octave won't be 
available for Yosemite in Fink at all until it gets resolved, since 
we're only using libc++.

--
Alexander Hansen, Ph.D.
Fink User Liaison
My package updates: http://finkakh.wordpress.com/