public var NAME: 'out'

-- programs
var CC: 'gcc'
var LD: 'gcc'
var RM: 'rm', '-f', '--'

-- libs
var LIBS: {}

-- flags
var CFLAGS: '-Wall', '-Wextra', '-Werror', (LIBS[1] and (_.pkgconfig.cflags LIBS) or {})
var LDFLAGS: LIBS[1] and (_.pkgconfig.libs LIBS) or {}

-- files
var C_SOURCES: _.wildcard 'src/**.c'
var C_OBJECTS: _.patsubst C_SOURCES, 'src/%.c', 'build/%.o'
var BINARY: NAME

with public default target 'all'
    \depends BINARY

with public target 'clean'
    \fn => _.cmd RM, C_OBJECTS

with public target 'deepclean'
    \after 'clean'
    \fn => _.cmd RM, BINARY

with target BINARY
    \depends C_OBJECTS
    \produces BINARY
    \fn => _.cmd LD, '-o', @outfile, @infiles, LDFLAGS

with target C_OBJECTS, pattern: 'build/%.o'
    \mkdirs!
    \depends 'src/%.c'
    \depends => _.cdeps[CC] @infile, CFLAGS
    \produces 'build/%.o'
    \fn => _.cmd CC, CFLAGS, '-c', @infile, '-o', @outfile