Alex Crichton fa0834d630 rustc_back: Don't pass 'u' to ar invocations
This flag indicates that when files are being replaced or added to archives (the
`r` flag) that the new file should not be inserted if it is not newer than the
file that already exists in the archive. The compiler never actually has a use
case of *not* wanting to insert a file because it already exists, and this
causes rlibs to not be updated in some cases when the compiler was re-run too
quickly.

Closes #18913
2015-05-26 07:06:31 -07:00
..