I've been fixing up some ~15 year old code to compilable state and the flex/bison bugs were showing up with the flex/bison line numbers where the errors originated -- which somewhat helps but it turned out none of the errors were actually from flex/bison but because of how their API changed over the years.
I'd get some WTF compilers errors and track them down to running the output of flex through sed in a perl script to do something that it now does out of the box and didn't like being messed with, fun times...well, it actually is fun times since I'm just doing this on my own so I can play with the software.
I've been fixing up some ~15 year old code to compilable state and the flex/bison bugs were showing up with the flex/bison line numbers where the errors originated -- which somewhat helps but it turned out none of the errors were actually from flex/bison but because of how their API changed over the years.
I'd get some WTF compilers errors and track them down to running the output of flex through sed in a perl script to do something that it now does out of the box and didn't like being messed with, fun times...well, it actually is fun times since I'm just doing this on my own so I can play with the software.