Re: README.MacOS

[Ben Abbott]

On Jan 27, 2011, at 3:22 AM, Lukas Reichlin wrote:

> On 27.01.2011, at 03:02, Ben Abbott wrote:
> 
>> On Jan 24, 2011, at 9:30 PM, Ben Abbott wrote:
>> 
>>> On Jan 24, 2011, at 7:52 AM, Ben Abbott wrote:
>>> 
>>>> On Jan 24, 2011, at 5:56 AM, Jarno Rajahalme wrote:
>>>>> 
>>>>> On Jan 24, 2011, at 9:51 , ext John W. Eaton wrote:
>>>>> 
>>>>>> On 23-Jan-2011, Ben Abbott wrote:
>>>>>> 
>>>>>> | I've edited the README.MacOS file to include instructions on using 
>>>>>> MacPorts.
>>>>>> | 
>>>>>> | I'm not a MacPorts user so I may have some things wrong.
>>>>>> | 
>>>>>> | Corrections and/or constructive critique would be appreciated.
>>>>>> 
>>>>>> | 1. General Users
>>>>>> | ================
>>>>>> | 
>>>>>> | A MacOS bundle is available from sourceforge.
>>>>>> | 
>>>>>> |   http://octave.sourceforge.net/index.html
>>>>>> | 
>>>>>> | There are also Octave packages available from both Fink and MacPorts.  
>>>>>> Each
>>>>>> | of these package managers handle the details of compiling Octave from 
>>>>>> source.
>>>>>> | 
>>>>>> |   http://www.finkproject.com
>>>>>> |   http://www.macports.org/
>>>>>> 
>>>>>> Users might also want to build from source for various reasons.  They
>>>>>> will probably want to build using a stable release rather than using
>>>>>> the sources from the Mercurial archive.  So you might rename this
>>>>>> first section "Easy to install Binary Releases" (or similar) and the
>>>>>> section for Developers could be renamed "Building from Source" and
>>>>>> then explain where and how to get the sources from Mercurial (you
>>>>>> could just point to the instructions on savannah) and also that stable
>>>>>> releases are availble from ftp.gnu.org in the directory
>>>>>> pub/gnu/octave.  Then I think the only difference in the directions
>>>>>> would be that once you've got the sources you should skip the
>>>>>> autogen.sh step if you are building from sources downloaded in a tar
>>>>>> file.
>>>>>> 
>>>>>> jwe
>>>>> 
>>>>> I have been building Octave from sources on OSX using GCC 4.5. To avoid 
>>>>> crashes LDFLAGS needs to have the newer libstdc++ as the first file to be 
>>>>> linked with, like:
>>>>> 
>>>>> export LDFLAGS="/opt/local/lib/gcc45/libstdc++.6.dylib"
>>>>> 
>>>>> (Above before ./configure)
>>>>> 
>>>>> Without this Octave segfaults when compiled with newer-than-Apple GCC.
>>>>> 
>>>>> Also, Apple blas (vecLib) does not work with 64-bit gfortran (4.2, 4.3, 
>>>>> 4.4, nor 4.5). Complex functions obviously fail (and segment fault) 
>>>>> without -ff2c option, but then other non-complex routines return 
>>>>> incorrect answers when -ff2c is enabled, so that configure fails. So with 
>>>>> 64-bit OSX you pretty much have to use atlas and/or lapack.
>>>>> 
>>>>> Would information like this be of interest in README.MacOS?
>>>>> 
>>>>> Jarno
>>>> 
>>>> I'll make these changes and post the result later today.
>>>> 
>>>> Thanks
>>>> Ben
>>> 
>>> A modified version is attached.
>>> 
>>> Ben
>>> 
>>> <README.MacOS>
>> 
>> I've pushed a modified version of README.MacOS
>> 
>>      http://hg.savannah.gnu.org/hgweb/octave/rev/2ba904181687
>> 
>> The section on describing "Manual Package Management" is still empty. I was 
>> pleased to see the several emails exchanged on this subject. Unfortunately, 
>> I have been unable to keep up.
>> 
>> I encourage those who are building without Fink and MacPorts to propose 
>> instructions that can be inserted into the current version. Changesets are 
>> preferred, but I am happy to handle a diff as well.
>> 
>> We may wish to include 32bit and 64bit sections.
>> 
>> Thanks
>> Ben
> 
> Follow-up comment:
> 
>   2.220
> +    sudo port uninstall octave-devel
> 
>   2.221
> +
> 
>   2.222
> +This will remove Octave and leave its dependencies in place. Now Octave may 
> be
> 
> 
> Probably the command
> sudo port deactivate octave-devel
> is better than the "uninstall" one since you can activate the port again by 
> typing
> sudo port activate octave-devel
> without a rebuild. It is possible to have several inactive versions of a port 
> at the same time.
> 
> Lukas

I'm made the change you suggested.

        http://hg.savannah.gnu.org/hgweb/octave/rev/75f12ba604b4

Thanks
Ben