CHICKEN library with C API

api.scm

(foreign-declare "#include \"test.h\"")

(define-external (test_doit) void 
  (display "Hello world!")
  (newline))

(return-to-host)

init.c

#include <chicken.h>
#include <stdio.h>
#include "test.h"

void test_init() {
  puts(";; initializing chicken");
  if(!CHICKEN_run(C_toplevel)) {
    puts(";; initialization failed");
  }
}

main.c

#include <stdlib.h>
#include <stdio.h>
#include "test.h"

int main() {
  puts(";; initializing library");
  test_init();
  puts(";; calling function");
  test_doit();
  return EXIT_SUCCESS;
}

Makefile

CSC := csc
CSCFLAGS := -O2 -d1 -static-libs

CC := $(shell $(CSC) -cc-name)
CCFLAGS := -O2 -Wall

.PHONY: all
all: libtest.a test

.PHONY: clean
clean:
	$(RM) libtest.a
	$(RM) test
	$(RM) *.o

libtest.a: init.o api.o
	$(AR) cru $@ $^

test: main.o libtest.a
	$(CSC) $(CSCFLAGS) $^ -o $@

init.o: init.c test.h
api.o: api.scm test.h

test.o: main.c test.h
	$(CC) $(CCFLAGS) -c $< -o $@

%.o: %.c
	$(CSC) $(CSCFLAGS) -c $< -o $@

%.o: %.scm
	$(CSC) $(CSCFLAGS) -e -c $< -o $@

test.h

#ifndef _test_h_
#define _test_h_

#ifdef __cplusplus
extern "C" {
#endif

void test_init(void);
void test_doit(void);

#ifdef __cplusplus
}
#endif

#endif /* _test_h_ */