Bam is a fast and flexible build system. Bam uses Lua to describe the build process. It's takes its inspiration for the script files from scons. While scons focuses on being 100% correct when building, bam makes a few sacrifices to acquire fast full and incremental build times.
Fix so lf_errorfunc doesn't crash bam by printfing a nullptr if lua error() is called without arguments.
After about 10 years I finally got annoyed enough to fix this.