envconfig: Always honor PKG_CONFIG_PATH
The comment for this code is correct, but the code itself isn't. The way
it's implemented in a cross compile we don't look at PKG_CONFIG_PATH at
all.
Fixes:
@@ -121,7 +121,7 @@ def get_env_var_pair(for_machine: MachineChoice,
# ones.
([var_name + '_FOR_BUILD'] if is_cross else [var_name]),
# Always just the unprefixed host verions
- ([] if is_cross else [var_name]),
+ [var_name]
)[for_machine]
for var in candidates:
value = os.environ.get(var)
