pkgs/os-specific/linux/hal/default.nix: deal with 'udev' being null

svn path=/nixpkgs/trunk/; revision=21870
2010-05-19 12:26:12 +00:00 · 2010-05-19 12:26:12 +00:00 · f90d6ec47d
commit f90d6ec47d
parent d6201c6aac
1 changed files with 1 additions and 1 deletions
--- a/pkgs/os-specific/linux/hal/default.nix
+++ b/pkgs/os-specific/linux/hal/default.nix
@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
    do
      substituteInPlace $i \
        --replace /usr/sbin/dmidecode ${dmidecode}/sbin/dmidecode \
-        --replace /sbin/udevadm ${udev}/sbin/udevadm \
+        ${if udev != null then "--replace /sbin/udevadm ${udev}/sbin/udevadm" else ""} \
        --replace /bin/mount ${utillinuxng}/bin/mount \
        --replace /bin/umount ${utillinuxng}/bin/umount \
        --replace /usr/bin/pm-is-supported ${pmutils}/bin/pm-is-supported \