fix: last --jobserver-auth wins
#67
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From the GNU make manual[^1]: > Be aware that the `MAKEFLAGS` variable may contain multiple > instances of the `--jobserver-auth=` option. > Only the last instance is relevant. Hence this commit makes it so. With this commit, `--jobserver-auth` also takes precedence over `--jobserver-fds`, even when `--jobserver-fds` is the last instance of these flags. This is made intentionally since `--jobserver-fds` was an undocumented internal-only flag before `--jobserver-auth` made public, according to this announcement[^2]. [^1]: https://www.gnu.org/software/make/manual/make.html#Job-Slots [^2]: https://git.savannah.gnu.org/cgit/make.git/tree/NEWS?h=4.2#n31
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`--jobserver-auth=` is the only documented makeflags. `--jobserver-fds=` is actually an internal only makeflags, so we should always prefer `--jobserver-auth=`. Also, according to doc of makeflags, if there are multiple `--jobserver-auth=` the last one is used ref: rust-lang/jobserver-rs#67 Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
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From the GNU make manual1:
Hence this commit makes it so.
With this commit,
--jobserver-authalso takes precedence over--jobserver-fds, even when--jobserver-fdsis the last instanceof these flags. This is made intentionally since
--jobserver-fdswas an undocumented internal-only flag before
--jobserver-authmade public, according to this announcement2.
fixes #66
Footnotes
https://www.gnu.org/software/make/manual/make.html#Job-Slots ↩
https://git.savannah.gnu.org/cgit/make.git/tree/NEWS?h=4.2#n31 ↩