## Syntax highlighting for Makefiles.
syntax makefile "(/((GNU)?m|M)akefile[^/]*$|\.(make|mk)$)"
magic "makefile script"
comment "#"
# Assignments.
color red " (:?:|\+|\?)?= "
# Keywords.
color magenta "^(if|ifn?def|ifn?eq|else|endif|(-|s)?include)\>"
color magenta "^((override +)?(un)?define|endef|(un)?export|private|vpath)\>"
# Variable expansions.
color blue "\$+[{(][a-zA-Z0-9_-]+[})]"
# Targets.
color brightblue "^[^ ]+:"
# Comments.
color green "(^|[[:space:]]+)#.*"
# Trailing whitespace.
color ,green "[[:space:]]+$"