Source: httest
Version: 2.4.18-1
Severity: serious
https://buildd.debian.org/status/fetch.php?pkg=httest&arch=arm64&ver=2.4.18-1&stamp=1484245003&raw=0
...
checking whether it is safe to define __EXTENSIONS__... yes
checking for library containing strerror... none required
checking for ANSI C header files... (cached) yes
checking for unistd.h... (cached) yes
checking build system type... Invalid configuration `aarch64-linux-gnu':
machine `aarch64' not recognized
configure: error: /bin/bash config/config.sub aarch64-linux-gnu failed
debian/rules:28: recipe for target 'config.status' failed
make: *** [config.status] Error 1
This is likely due to the ancient config.{guess,sub} in httest.