Loading library from application

[mourad]

I've created my application bundle with qtdeploy and it works fine on the developement envirement. But when I execute it on test enviroment I've a problem to load a library that I'm using in my application.
I'm using XCode on Mac OS X 10.4 Tiger and Qt 4.3
In my application I must load library but with the QLibrary load method returns always false otherwise the application find the library in the right path.
I've tried to link the library with the application with :

install_name_tool -id @executable_path/secure.dylib Autonome.app/Contents/MacOS/secure.dylib
 
install_name_tool -change /Volumes/Data/subversion/RijnDaelEncryptionDLL/build/Release/secure.dylib @executable_path/secure.dylib Autonome.app/Contents/MacOs/Autonome
 
install_name_tool -change /Volumes/Dev/Library/Frameworks/QtCore.framework/Versions/4.0/QtCore @executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore Autonome.app/Contents/MacOS/secure.dylib
 
install_name_tool -change /Volumes/Dev/Library/Frameworks/Qt3Support.framework/Versions/4.0/Qt3Support @executable_path/../Frameworks/Qt3Support.framework/Versions/4.0/Qt3Support Autonome.app/Contents/MacOS/secure.dylib

install_name_tool -id @executable_path/secure.dylib Autonome.app/Contents/MacOS/secure.dylib

install_name_tool -change /Volumes/Data/subversion/RijnDaelEncryptionDLL/build/Release/secure.dylib @executable_path/secure.dylib Autonome.app/Contents/MacOs/Autonome

install_name_tool -change /Volumes/Dev/Library/Frameworks/QtCore.framework/Versions/4.0/QtCore @executable_path/../Frameworks/QtCore.framework/Versions/4.0/QtCore Autonome.app/Contents/MacOS/secure.dylib

install_name_tool -change /Volumes/Dev/Library/Frameworks/Qt3Support.framework/Versions/4.0/Qt3Support @executable_path/../Frameworks/Qt3Support.framework/Versions/4.0/Qt3Support Autonome.app/Contents/MacOS/secure.dylib

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and I've the library referenced to the application but I always have this error :

QLibrary::load_sys: Cannot load /Volumes/Data/Autonome_/Autonome.app/Contents/MacOS/secure (dlopen(/Volumes/Data/Autonome_/Autonome.app/Contents/MacOS/libsecure.dylib, 1): image not found)

Do's anyone hava an idea.
Many thanks