Re: Linking automatically with dlopen
On Mon, 16 Apr 2007, Reuben Thomas wrote: This is a function of libltdl, which comes with libtool. I use it in GraphicsMagick. I read the documentation for libltdl before posting originally, but I couldn't see how to do what I wanted. Can you explain, please? In particular, I couldn't see how to link using libltdl instead of the normal linker without changing my source. I see what you want to do. The intention of libltdl is to provide a portable replacement for dlopen() while also supporting static compilation. By loading a library/module with global scope, you may achieve some success, but initialization becomes highly order dependent and subsequent library/module loads wil fail if their symbol dependencies are not satisified. Using libltdl requires source changes. Bob == Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ http://lists.gnu.org/mailman/listinfo/libtool
Re: Linking automatically with dlopen
On Sun, 15 Apr 2007, Bob Friesenhahn wrote: On Mon, 16 Apr 2007, Reuben Thomas wrote: Is there a way to use libtool to link against a library using dlopen? I want to be able to link against a library which may not be present at runtime, be certain that the application starts up (i.e. the dynamic linker doesn't discover that a library is missing and abort), and then be able to find out whether a given library was successfully linked or not (and hence decide whether I can execute code that uses symbols from that library). This is a function of libltdl, which comes with libtool. I use it in GraphicsMagick. I read the documentation for libltdl before posting originally, but I couldn't see how to do what I wanted. Can you explain, please? In particular, I couldn't see how to link using libltdl instead of the normal linker without changing my source. -- http://rrt.sc3d.org/ | think tank, n. a safe container for noxious gases ___ http://lists.gnu.org/mailman/listinfo/libtool
