Re: [Bug-readline] Fix building readline on future OS X versions, and also cleanup the relevant code

[Chet Ramey]

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On 1/27/14 6:32 AM, Max Horn wrote:
> 
> On 25.01.2014, at 23:46, Chet Ramey <address@hidden> wrote:
> 
>> Thanks.  The new stanza will be in bash-4.3-rc2/readline-6.3-rc2.
> 
> Great! But actually, perhaps a second alteration should be put in... First, a 
> question:
> 
> So far I assumed that readline 6.x released are supposed to be backwards 
> compatible in the following sense: If a binary was linked against a readline 
> 6.x shared library, then one may later upgrade that shared library to 
> readline 6.y for y > x and the program will still run. Or, said simple: A 
> program linked against readline 6.2 should still work with readline 6.3, 
> without a need for recompilation.
> 
> Is that correct? If no, I did it wrong all the time and it's good I finally 
> learned!

Yes, that's the idea. Minor version number changes are supposed to maintain
API/ABI compatibility.  It's a bug if that assumption is violated.

> But if yes, then the currently used install_name used on Mac OS X is bad: It 
> uses the full library name libreadline.6.2.dylib, but really should be using 
> libreadline.6.dylib.

Sure, let me see your approach.

Chet
- -- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/
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