> On Mon, Feb 8, 2010 at 5:03 PM, S. Senthil Anand > Is pkgsrc such tool??, to find all the dependency library files/ bin files > / > files that are required for the application that has its contents inside a > directory? >
You get a application directory with a Makefile and a few patches. The makefile clearly says what are the other packages which are needed to build the software and then to run the software [these need not be identical eg. to build C++ programs you need g++ but to run it you need libstdc++ and not g++.] Each of those packages will have their own Makefile etc. When you run make install, make will take care of building all the required dependencies recursively by downloading the source code and building them in the required order. FreeBSD and OpenBSD ports, and Gentoo's portage which is inspired by FreeBSD ports works similarly. If you want to simply view dependencies, go to http://pkgsrc.se and see if the software you want is there. You will get the complete dependency information for a package in pkgsrc under all supported platforms. > To be simple, is there any such ldd command for all files/ sub-directories > of a directory specified, not just for libraries but also for all > dependencies ??? I am not aware of a single tool like ldd to display all the dependencies recursively. You can probably write a tool to walk through the dependency graph of a package for the various package managers you are interested in. For me the dependencies tab in synaptic is good enough. > Or how to make an application *absolutely* portable in Linux environment > ??? For source portability, pkgsrc or portage will take care of the stuff. For binary portability within a same architecture ie. i686 (betwwen distributions of the same architecture) , you need to statically compile your program + dependencies eg. Opera. Binary compatibilty between architectures ie. i686 and arm for example, is not feasible unless you go for something like MacOS's universal binaries which is not used anywhere in Linux land. Regards, Senthil _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
