Source: libretls Version: 3.3.1p1-1 Severity: serious Tags: ftbfs https://buildd.debian.org/status/package.php?p=libretls&suite=sid
... checking for pkg-config... pkg-config checking for include/openssl/ssl.h in /usr/local/ssl... no checking for include/openssl/ssl.h in /usr/lib/ssl... no checking for include/openssl/ssl.h in /usr/ssl... no checking for include/openssl/ssl.h in /usr/pkg... no checking for include/openssl/ssl.h in /usr/local... no checking for include/openssl/ssl.h in /usr... no checking whether compiling and linking against OpenSSL works... no configure: error: unable to find OpenSSL