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-rw-r--r--nixpkgs/pkgs/applications/networking/irc/weechat/default.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/networking/irc/weechat/default.nix b/nixpkgs/pkgs/applications/networking/irc/weechat/default.nix
index 4c6bfb721b77..6d2951472273 100644
--- a/nixpkgs/pkgs/applications/networking/irc/weechat/default.nix
+++ b/nixpkgs/pkgs/applications/networking/irc/weechat/default.nix
@@ -41,6 +41,9 @@ let
       cmakeFlags = with stdenv.lib; [
         "-DENABLE_MAN=ON"
         "-DENABLE_DOC=ON"
+
+        # This just means it's okay to use Python 3 if it's in the environment.
+        "-DENABLE_PYTHON3=ON"
       ]
         ++ optionals stdenv.isDarwin ["-DICONV_LIBRARY=${libiconv}/lib/libiconv.dylib" "-DCMAKE_FIND_FRAMEWORK=LAST"]
         ++ map (p: "-D${p.cmakeFlag}=" + (if p.enabled then "ON" else "OFF")) plugins