[Scons-dev] Issue 2869 - Versioned shared libraries

[Chris BeHanna]

On Oct 25, 2012, at 19:33 , William Deegan <bill at baddogconsulting.com> wrote:


> All,

> On Oct 25, 2012, at 1:16 PM, Chris BeHanna <chris at behanna.org> wrote:

> 

>> On Oct 25, 2012, at 15:07 , "Managan, Rob" <managan1 at llnl.gov> wrote:

>> 

>>> Hi Chris,

>>> 

>>> Thanks for the info. Sounds like I should have the Install function check

>>> that the version numbers match. In the use case where Install does not

>>> know what the version number is then I will believe the one in the library

>>> name!

>>> 

>>> Of course, in the example from Eric Raymond on OSX there is only one

>>> symlink and the version number is located differently.

>> 

>> 	Yes, it's very, very different on OS X.  OS X uses "Mach-O" format rather than ELF, and spells ".so" as ".dylib", plus it reverses the order of the version number and the file type suffix:

>> 

>> 	libcurl.so.4 => libcurl.4.dylib

>> 

>> Mach-O also uses a "compatibility version" that is distinct from the version that appears in the filename.  :-/

> 

> Does the implementation work with both linux and OSX?


	If I can find time, I'll test it soon--I have Linux and OS X available. I do not have a current version of MSVC to test on Windows, though.

-- 
Chris BeHanna
chris at behanna.org