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| author | Michael Raskin <7c6f434c@mail.ru> | 2008-02-10 16:44:43 +0000 |
|---|---|---|
| committer | Michael Raskin <7c6f434c@mail.ru> | 2008-02-10 16:44:43 +0000 |
| commit | 4df190c703f8779fcbdc32df19e6fbed36654e99 (patch) | |
| tree | 0d117338f027dd72301e683d7d5761d41c91a501 /pkgs/lib | |
| parent | c264b316b1eeaadd15ee0e7ba11b78a2deff88c9 (diff) | |
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Various fixes and updates to build that all.
svn path=/nixpkgs/branches/stdenv-updates/; revision=10568
Diffstat (limited to 'pkgs/lib')
| -rw-r--r-- | pkgs/lib/default.nix | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/lib/default.nix b/pkgs/lib/default.nix index 87d08ab7c1c0..1018d9609078 100644 --- a/pkgs/lib/default.nix +++ b/pkgs/lib/default.nix @@ -176,6 +176,10 @@ rec { # (e.g. `++ optional (system == "i686-linux") flashplayer'). optional = cond: elem: if cond then [elem] else []; + + # Return a list or an empty list, dependening on a boolean value. + optionals = cond: elems: if cond then elems else []; + # Return a list of integers from `first' up to and including `last'. range = first: last: |