https://bugs.exim.org/show_bug.cgi?id=2831
https://git.exim.org/exim.git/commit/dd19ce4f24eec64177cdcfcf294b8efbb631a24b
https://git.exim.org/exim.git/commitdiff/dd19ce4f24eec64177cdcfcf294b8efbb631a24b
https://git.exim.org/exim.git/patch/dd19ce4f24eec64177cdcfcf294b8efbb631a24b

75_38-Convert-all-uses-of-select-to-poll.-Bug-2831.patch from Debian pakage