Re: Shared library inter-dependencies
I wrote (in a message from Friday 5) inter-dependencies are both good and bad. It's a good thing to list them at build time, It helps finding some kind of conflicts. OTOH, one should not rely on them to prune the list of libraries used to link an executable. First, this will break on static only build (yes there are still systems without shared libs these days), and then it can cause weird failures at run-time if the linker does not walk the full dependencies. So the *Lib.tmpl should be fixed to describe correct dependencies (on Darwin it's strictly required) and Imakefiles should list the full dependencies too. Hmm I forgot one point: sometimes you don't want to specify full dependencies for a library since there can be 2 differents libs capable to satisfy the dependency and you want to chose at application link time. The most current exemple is -lc_r vs -lc (or -lXThrstubs vs -lpthreads) on some systems for threaded vs non-threaded applications. Matthieu ___ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
Re: Shared library inter-dependencies
The most current exemple is -lc_r vs -lc (or -lXThrstubs vs -lpthreads) on some systems for threaded vs non-threaded applications. I'm talking about inter-X11 dependencies. Xext *always* depends on X11. SM *always* depends on ICE. That kind of thing. Its a simple matter of ELF shared object inter-dependencies. Dont forget, any RTLD worth its salts wont even load the symbols from the dependent library until it needs to, unless the user has explicitly told it to bind all symbols. Kean ___ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
Shared library inter-dependencies
Hi, I asked this once before but unfortunately I lost the reply when I moved to Mozilla for my mail reader, so I'd like to ask the question again, or open up the debate. I would very VERY much like to see the XFree86 build correctly set up its dependencies for shared libraries. For example, make sure that Xext always has X11.so.6 as a dependency. This makes life a lot easier for folks, and obviates the need for linking with the same library many times (not all systems are thus flawed, but many are). Ideally, each library should be build with -z text, so that it has no unresolved relocations. I believe that Darwin actually requires this (if I remember the previous reply to this question correctly), so there is at least some precedent in the build for handling this. If this is true, and these inter-dependencies are already addressed for Darwin, then it will most probably be a simple matter of adjusting the required *Lib.rules files to link against the dependent libraries. Comments? Suggestions? Kean ___ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
