Source: mono Version: 4.6.2.7+dfsg-1 Severity: serious Tags: ftbfs https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/mono.html
... processes.c: In function 'load_modules': processes.c:1653:12: error: implicit declaration of function 'makedev' [-Werror=implicit-function-declaration] device = makedev ((int)maj_dev, (int)min_dev); ^~~~~~~