Makefile for GNU make 4.0 that rules are written by embedded Guile.

dsl.mk

define dsl
(use-modules (srfi srfi-1))

(define targets '())

(define (showtargets)
  (string-join (reverse targets) "\n") )

(define-macro (push! place item)
  `(set! ,place (cons ,item ,place)) )

(define (mklist->str lst)
  (string-join (map symbol->string lst)) )

(define-macro (deftarget tgt dep . cmds)
  (push! targets
	 (format #f "~a:~a~a"
		 tgt (mklist->str dep)
		 (fold (lambda (x r)
			 (string-append r "\n\t" (mklist->str x))) "" cmds )) ))

(deftarget all (foo)
  (@./foo))

(deftarget foo (foo.c)
  (cc foo.c -o foo) )
endef

dummy := $(guile $(dsl))
$(guile (gmk-eval (showtargets)))