CODEWITHSUNDEEP
cocoamacosopensslaquaticprime
adib
adib

Reputation: 8395

Linking to libcrypto for Leopard?

I am using Mac OS X 10.6 SDK and my deployment target is set to Mac OS 10.5. I'm linking to libcrypto (AquaticPrime requires this) and found out that my app doesn't launch on Leopard. The error is

dyld: Library not loaded: /usr/lib/libcrypto.0.9.8.dylib

I've tried the following workarounds but none of them work:

Is there a way to link to this library and still use the 10.6 SDK?

Thanks.

Upvotes: 11

Views: 8672

Answers (5)

Brian McCarthy
Brian McCarthy

Reputation: 4784

Leopard OS X ships with a libcrypto and libssl that only has the ppc architecture.

A simple solution that doesn't require changing the code of the app is to backup your libcrypto.0.9.dylib, libcrypto.0.9.8.dylib, libssl0.9.dylib, libssl.0.9.8.dylib and copy over the libcrypto.0.9.7.dylib and libssl.0.9.7.dylib.

You can use Terminal.app to make these changes in your Applications folder: 

  cd /usr/lib
  sudo cp libcrypto.0.9.dylib libcrypto.0.9.dylib.old
  sudo cp libssl.0.9.dylib libssl.0.9.dylib.old
  sudo ln -sf libcrypto.0.9.7.dylib libcrypto.0.9.dylib
  sudo ln -sf libssl.0.9.7.dylib libssl.0.9.dylib

Here's an alternative solution that lets you stay on the freshest openssl version:

  1. reactivate the current openssl: port activate [email protected]_0 (or whatever)
  2. clean up your old unwanted versions of everything: port uninstall inactive
  3. uninstall badly behaved ports: port uninstall md5sha1sum subversion neon
  4. get them back: port install subversion md5sha1sum

Upvotes: 0

Simone Manganelli
Simone Manganelli

Reputation: 968

As per this thread here ( first post in thread: http://lists.apple.com/archives/cocoa-dev/2009/Aug/msg01737.html , "libcrypto on Snow Leopard" thread listing: http://lists.apple.com/archives/cocoa-dev/2009/Aug/thrd19.html ), I believe the solution is to do the following:

  1. Go to /Developer/SDKs/MacOSX10.5.sdk/usr/lib/ . From this folder, copy "libcrypto.0.9.7.dylib" to your project source folder.

  2. Rename the file you just copied to "libmycrypto.dylib".

  3. Add the file you just renamed to your project. Make sure to remove any other linked libcrypto frameworks from your project.

  4. Go through your build settings, and make sure you remove the "-lcrypto" linker flag. (It's usually put in the "Other Linker Flags" setting.)

Now you should be able to build your project and it will work on both 10.5 and 10.6.

(libcrypto.0.9.7 is available on both 10.5 and 10.6. The file you copied is just a stub of the headers, but you're just linking against it, not embedding it in your project. Since the linker uses the install path not the actual filename of the dylib, naming it "libmycrypto.dylib" eliminates path conflicts, but still allows you to link against the library you need.

FWIW, this is an Xcode problem. You should be able to link against /usr/lib/libcrypto.dylib -- the symbolic link -- and have it target the correct version of libcrypto on both 10.5 and 10.6. However, Xcode always seems to link to version 0.9.8 when building on Snow Leopard for some reason.)

Upvotes: 22

Kuba Suder
Kuba Suder

Reputation: 7827

Depending on what you're using the lib for, you might be able to replace libcrypto with CommonCrypto which works well with both 10.5 and 10.6. I've used libcrypto only for the MD5 function, so I replaced openssl/md5.h with CommonCrypto/CommonDigest.h and MD5() with CC_MD5(), and libcrypto with CommonCrypto, and now it works on both Leopards.

Upvotes: 1

JeremyP
JeremyP

Reputation: 86691

You could try setting the base SDK to 10.5 in your target build settings.

Upvotes: 1

Peter Hosey
Peter Hosey

Reputation: 96373

Have you tried linking against libcrypto.0.9.dylib or libcrypto.dylib instead of the specific versions?

Upvotes: 0

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