diff options
| -rw-r--r-- | doc/manual/expressions/advanced-attributes.xml | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/manual/expressions/advanced-attributes.xml b/doc/manual/expressions/advanced-attributes.xml index f3cf98371..dfd013b5c 100644 --- a/doc/manual/expressions/advanced-attributes.xml +++ b/doc/manual/expressions/advanced-attributes.xml @@ -112,7 +112,13 @@ impureEnvVars = [ "http_proxy" "https_proxy" <replaceable>...</replaceable> ]; linkend="fixed-output-drvs">fixed-output derivations</link>, where impurities such as these are okay since (the hash of) the output is known in advance. It is ignored for all other - derivations.</para></listitem> + derivations.</para> + + <warning><para><varname>impureEnvVars</varname> implementation takes + environment variables from the current builder process. When a daemon is + building its environmental variables are used. Without the daemon, the + environmental variables come from the environment of the + <command>nix-build</command>.</para></warning></listitem> </varlistentry> |