[libcxx] Always convert 'use_system_cxx_lib' to an absolute path
Otherwise, some tests would fail when a relative path was passed,
because they'd use the relative path from a different directory
than the current working directory.
diff --git a/libcxx/utils/libcxx/test/config.py b/libcxx/utils/libcxx/test/config.py
index bdedd51..2550685 100644
--- a/libcxx/utils/libcxx/test/config.py
+++ b/libcxx/utils/libcxx/test/config.py
@@ -307,6 +307,7 @@
self.use_system_cxx_lib = False
elif self.use_system_cxx_lib:
assert os.path.isdir(self.use_system_cxx_lib), "the specified use_system_cxx_lib parameter (%s) is not a valid directory" % self.use_system_cxx_lib
+ self.use_system_cxx_lib = os.path.abspath(self.use_system_cxx_lib)
self.lit_config.note(
"inferred use_system_cxx_lib as: %r" % self.use_system_cxx_lib)
