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-rw-r--r--mesonbuild/coredata.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
index bc8ee1995..e790a018f 100644
--- a/mesonbuild/coredata.py
+++ b/mesonbuild/coredata.py
@@ -837,10 +837,10 @@ class CoreData:
pfk = OptionKey('prefix')
if pfk in options:
prefix = self.sanitize_prefix(options[pfk])
- self.options[OptionKey('prefix')].set_value(prefix)
+ dirty |= self.options[OptionKey('prefix')].set_value(prefix)
for key in BULITIN_DIR_NOPREFIX_OPTIONS:
if key not in options:
- self.options[key].set_value(BUILTIN_OPTIONS[key].prefixed_default(key, prefix))
+ dirty |= self.options[key].set_value(BUILTIN_OPTIONS[key].prefixed_default(key, prefix))
unknown_options: T.List[OptionKey] = []
for k, v in options.items():