[gentoo-catalyst] [PATCH] Fix spec file USE flag parsing

[Felix Bier <Felix.Bier@rohde-schwarz.com>]

In stagebase, the set_use function applies .split() to the use flags
passed from the spec file, if the value is a string. However, the
result is immediately overwritten after the if-statement. Therefore the
.split() is ineffectual.

This results in self.settings["use"] holding a string,
which is then regarded as a list of characters in write_make_conf.
This fix ensures that the result of the split is not overwritten
(matching the similar code in set_catalyst_use).

For example, setting "stage4/use: abc" in a spec file results
in USE="a b c ..." in the generated make.conf.
With this fix, the generated make.conf contains the expected
USE="abc ...".
---
 catalyst/base/stagebase.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/catalyst/base/stagebase.py b/catalyst/base/stagebase.py
index df1cb844..2e313bd8 100644
--- a/catalyst/base/stagebase.py
+++ b/catalyst/base/stagebase.py
@@ -512,7 +512,8 @@ class StageBase(TargetBase, ClearBase, GenBase):
         if use in self.settings:
             if isinstance(self.settings[use], str):
                 self.settings["use"] = self.settings[use].split()
-            self.settings["use"] = self.settings[use]
+            else:
+                self.settings["use"] = self.settings[use]
             del self.settings[use]
         else:
             self.settings["use"] = []
-- 
2.28.0