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In case of eglibc, some add-ons that were previously external are now internal (bundled with the main sources). So we do not want to fail if an add-on can't be downloaded; we want to post-pone the check until we can extract the main archive. So: - try to retrieve the add-on - if it fails, print a warning instead of calling CT_Abort - return 1 So, components that want to catch the error and want to handle it can, while components that do not will gracefuly fail thanks to our catching every errors. Bonus: it works without changing any existing retrieval procedure! :-) Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>