diff options
| -rw-r--r-- | pym/portage.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pym/portage.py b/pym/portage.py index af2ddb8ba..821edb81f 100644 --- a/pym/portage.py +++ b/pym/portage.py @@ -1609,7 +1609,11 @@ class config: # like LINGUAS. var_split = [ x for x in var_split if x in expand_flags ] var_split.extend(expand_flags.difference(var_split)) - self[var] = " ".join(var_split) + if var_split or var in self: + # Don't export empty USE_EXPAND vars unless the user config + # exports them as empty. This is required for vars such as + # LINGUAS, where unset and empty have different meanings. + self[var] = " ".join(var_split) # Pre-Pend ARCH variable to USE settings so '-*' in env doesn't kill arch. if self.configdict["defaults"].has_key("ARCH"): |