There's a call to read() in the file but corresponding include of unistd.h is missing causing a build failure. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- Green pipeline: https://gitlab.com/MichalPrivoznik/libvirt/-/pipelines/1642845347 src/ch/ch_events.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/ch/ch_events.c b/src/ch/ch_events.c index ba5b247c83..1cce30836a 100644 --- a/src/ch/ch_events.c +++ b/src/ch/ch_events.c @@ -20,6 +20,8 @@ #include <config.h> +#include <unistd.h> + #include "ch_domain.h" #include "ch_events.h" #include "ch_process.h" -- 2.45.2