Am Sat, 10 Nov 2012 16:40:37 +0100 schrieb Jacob Carlborg <d...@me.com>:
> What's the best way to achieve binary compatibility on Linux? For > example, if I compile an application on, say Ubuntu 12.04, it will > most likely not run on any older versions of Ubuntu but it will run > on future versions. > > My current approach to solve this is to compile the application in > the oldest version of Ubuntu I can find, in this case 6.x. This is > starting to get a bit problematic: > > * The integration with VirtuaBox (I'm running Ubuntu as a guest) is > pretty bad > * DMD won't run of out of the box, I need to compile it. This is also > making DVM basically useless > * I can't clone the dlang repositories due to having a very old > version of git installed > * I can't compile git, I haven't investigated in why but probably due > to the system is too old > > Is there some compiler/linker flags I can use when building to make > the executable compatibility with older versions of Linux? > > Or is there a better way to solve this? > crosstool-NG has a nice option "Oldest supported ABI" where you can enter an old GLIBC version and the compiler will generate executables compatible with this version (although it still uses a recent glibc). I have no idea how this works, but that's the best solution I have seen so far. (crosstool also has an option "Disable symbols versioning" which completely disables versioning. quite cool). Here are some links which might help: http://sourceware.org/ml/libc-help/2011-04/msg00032.html http://www.trevorpounds.com/blog/?tag=symbol-versioning
