quick zsh function to parse a makefile, wrote it on the command line. the grep expression does the magic

parsemake.zsh

cat bsd.commands.mk | 
grep -v -Ee "^\#|^$|^_|^\.|\@|^PKG|builtin" | 
while read line
do
    CMD=`echo $line | tr -s "\t" | cut -f2 | cut -f1 -d\  `
    stat $CMD 1>>/dev/null 2>>/dev/null
    if (($? )) then
        echo "${CMD} failed"
    else
        echo "${CMD} ok"
    fi
done | grep failed 

the grep | tr | cut | cut pipeline render a virtually clean column... probably a sed on the pipeline wil turn this into a self-documenting function for scripts and makefiles