I propose to add a m4 package as a runtime dependency of bison. The m4 package used by bison in runtime. This will be useful for people who install bison from binary package, in that case DEPEND is not checked, only RDEPEND. Reproducible: Always Steps to Reproduce: # bison -d calc.y # echo $? 0 # mv /usr/bin/m4 /usr/bin/m4_old # bison -d calc.y bison: m4 subprocess failed # echo $? 1 Expected Results: .
Fixed. Thanks a lot for the report.