added PATH inheritance.

src/Argonix.hs

@@ -339,11 +339,13 @@ setupSystem target sa = do
   varXDG_CACHE_HOME <- rpVerbose "mktemp" ["-d", "/tmp/deletable-nix-cache-XXXX"] []
   varTMPDIR   <- createAndSetTMPDIR "nixtmpdir"
   varNIX_PATH <- toS <$> SE.getEnv "NIX_PATH"
+  varPATH <- toS <$> SE.getEnv "PATH"
 
   let envVars =
         [ ("XDG_CACHE_HOME", varXDG_CACHE_HOME)
         , ("TMPDIR"        , varTMPDIR)
         , ("NIX_PATH"      , varNIX_PATH)
+        , ("PATH"          , varPATH)
         ]
 
   when (isTarget target) $ setupNodeOs envVars
@@ -416,10 +418,6 @@ wrap nixCommand target sa@ArgsCommon {..} = do
 remotely :: Text -> ArgsCommon -> ArgsRemote -> IO ()
 remotely _ _ _ = putText "unsupported in this version" >> undefined
 
--- Sources of impurity for this build are: "/tmp/ /etc/argo/ /var/run/
--- /var/lock/. Moreover, sandboxing is disabled, in particular because of:
--- /tmp/nrm-* sockets, /etc/argo, /var/run/, /var/lock/ which all need read
--- access.  until these components are patched to allow for alternative paths,
 -- no sandbox use is possible. If sandbox paths were read only we could add:
    {-, "--option"-}
    {-, "build-use-sandbox"-}