On 27.01.2014, at 17:47, Chet Ramey <[email protected]> wrote: > > On 1/27/14 6:32 AM, Max Horn wrote: > > > > On 25.01.2014, at 23:46, Chet Ramey <[email protected]> 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.
OK, here is what I am doing in my OS X readline6 package for Fink (a dpkg based package manager): Instead of using -install_name $(libdir)/$@ in shobj-conf, I use -install_name $(libdir)/`echo $@ | sed "s:\\(.*\\.[0-9]\\)\\.[0-9]:\\1:"` This parallels the logic in support/shlib-install, around line 109, which creates symlinks libFOO.x.dylib -> libFOO.x.y.dylib libFOO.dylib -> libFOO.x.y.dylib If you see a more elegant way, please let me know. By the way: support/config.guess is really old (from 2009, it seems). Amongst other things, it does not distinguish between 32bit and 64bit OS X environments. Right now, that doesn't seem to be a problem, but perhaps it would be a good idea to update it (and perhaps also support/config.sub, which was last updated in 2008, it seems) Cheers, Max
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