Source: mir Version: 1.8.0+dfsg1-6 Severity: serious Tags: ftbfs https://buildd.debian.org/status/logs.php?pkg=mir&ver=1.8.0%2Bdfsg1-6
For C++ libraries symbols files are often not worth the troubles, unless upstream makes only exported symbols visible: https://wiki.debian.org/UsingSymbolsFiles
