Ilya, Try pulling in gcc-core libgcc1 binutils. I can’t actually see how it’s compiling without a compiler :), but worth trying. Also, check output from
cpp -v /dev/null -o /dev/null This should print the search path – we can then verify that /usr/include and other dirs are in it. Bob From: Илья Шипицин <[email protected]> Sent: Monday, June 3, 2019 4:09 PM To: Zakharychev, Bob <[email protected]> Cc: HAProxy <[email protected]> Subject: Re: cygwin compilation error I use the following command to build environment: https://github.com/chipitsine/haproxy/blob/master/.travis.yml#L10 "poll.h" is located in /usr/include https://travis-ci.com/chipitsine/haproxy/builds/114162585#L231

