[erlang-questions] Creating an application that is portable across versions of CentOS
Sun Dec 21 04:50:15 CET 2014
On 2014年12月20日 土曜日 22:37:25 you wrote:
> I don't confirm this.
> Erlang R16B03-1 binaries built on Centos 5.10 with static openssl and
> disabled ncurses are portable between Centos 5.10. 6.5 and 7.0, Fedora 19
> and 20, tested this myself on digitalocean droplets and by some of my
> clients who run the software with bundled in Erlang on their own servers.
> The same is true with Ubuntu 10.04, 12.04, 14.04, 14.10, Debian 6.0 and 7.0
> with binaries built on Debian 6.0.
> It might depend on libc or something other, but in general they are
> portable or at least sometimes are portable.
That is the magic of forward portability *and* backported patches and
developer tools RedHat has backported to the 5.x line that have been gradually
added since 5.6 or so and wound up in 5.10 (but don't exist in earlier
versions). This will not work from 5.2, and a build from 5.10 will probably
not run on 5.2 (in particular, wx built on 5.10 will probably not work on
5.2). A build made on 6.x will not run on 5.x, and a build on 7.x won't run on
6.x or 5.x.
That is, of course, unless you build everything statically -- which is a whole
Going forward is always easier than going backward -- its a sort of "least
common denominator" effect with regard to mature, stable APIs.
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