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Re: Loader Not Using Newer Library Version

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Re: Loader Not Using Newer Library Version

Subject: Re: Loader Not Using Newer Library Version
From: Martin Costabel <email@hidden>
Date: Sat, 26 Mar 2005 11:21:31 +0100

Michael B Allen wrote:

I'm compiling my dylib as follows:

gcc -dynamiclib -current_version 0.8.25 \
   src/f1.pic.o src/f2.pic.o s -o libfoo.0.8.25.dylib

and installing it in /usr/local/lib like:

-rwxr-xr-x  libfoo.0.8.25.dylib
lrwxr-xr-x  libfoo.0.8.dylib -> libfoo.0.8.25.dylib
lrwxr-xr-x  libfoo.dylib -> libfoo.0.8.25.dylib
-rw-r--r--  libfoo.a

But when I increment the version, programs compiled with an older version
will not load:

  $ ./test
  dyld: ./test can't open library: libfoo.0.8.24.dylib
        (No such file or directory, errno = 2)
  Trace/BPT trap

The idea of the symlink libfoo.0.8.dylib -> libfoo.0.8.25.dylib is that the install_name of the library is libfoo.0.8.dylib. If you install a new version, it will still have the same install_name and the symlink will still be present, it will just point to the new version.

--
Martin

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  >Loader Not Using Newer Library Version (From: Michael B Allen <email@hidden>)




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