From f7454eae9cc9255883dd5afb6beb945fb49737f2 Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Sat, 25 Apr 2009 22:36:33 +0000 Subject: * Be able to cope with future changes to Upstart. svn path=/nixpkgs/trunk/; revision=15311 --- pkgs/os-specific/linux/upstart/default.nix | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'pkgs/os-specific') diff --git a/pkgs/os-specific/linux/upstart/default.nix b/pkgs/os-specific/linux/upstart/default.nix index b35f9c036421..9f3a631bab34 100644 --- a/pkgs/os-specific/linux/upstart/default.nix +++ b/pkgs/os-specific/linux/upstart/default.nix @@ -14,6 +14,16 @@ stdenv.mkDerivation { preBuild = "export NIX_CFLAGS_COMPILE=\"$NIX_CFLAGS_COMPILE -DSHELL=\\\"$SHELL\\\"\""; + # The interface version prevents NixOS from switching to an + # incompatible Upstart at runtime. (Switching across reboots is + # fine, of course.) It should be increased whenever Upstart changes + # in a backwards-incompatible way. If the interface version of two + # Upstart builds is the same, then we can switch between them at + # runtime; otherwise we can't and we need to reboot. + passthru = { + interfaceVersion = 0; + }; + meta = { homepage = "http://upstart.ubuntu.com/"; description = "An event-based replacement for the /sbin/init daemon"; -- cgit 1.4.1