At first, I created a cocoa framework and included all external
library with headers. The framework was finished.
Then I created an application for testing. I imported the
framework created previously. Without a line of code, the console
prompted like these: " /usr/bin/ld: warning can't open dynamic
library: /Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libgsl.
0.dylib referenced from: /Users/Tiger/Project/GSLTesting/../../
Desktop/GSL/gsl.framework/gsl (checking for undefined symbols may
be affected) (No such file or directory, errno = 2)"
It is very odd, for I have included the requested lib files into
the gsl.framework.
When you build a library or framework, the path of the folder in
which it was built gets encoded in the framework. You have to set
the "Installation Path" build setting if you want the framework to
be in any other place than where you built it. Also, if your
framework doesn't go into the standard Frameworks folder, but
rather gets embedded in the Frameworks folder of your application's
package bundle, you may want to start your path with the
@executable_path placeholder to designate a path relative to the
application's executable (e.g. @executable_path/../Frameworks/).
<shameless plug>
I wrote a short article about this just the other day. It contains
some screenshots to help you find the right menu option:
