!<arch>
dlhello.c       1159977791  42253 3000  100644  278       `
#include <dlfcn.h>

int
main(int argc, char **argv)
{
  void (*greeting)();
  void *module;
  if( argc > 2 ) exit(0);
  module = dlopen(argv[1], RTLD_LAZY);
  if(!module) exit(0);
  greeting = dlsym(module, "greet");
  if(greeting) {
    (*greeting)();
  }
  dlclose(module);
}
english.c       1159977791  42253 3000  100644  65        `
#include <stdio.h>
void
greet () {
  printf("hello, world\n");
}

hello.c         1159977791  42253 3000  100644  27        `
int
main () {
  greet();
}

makefile        1159977791  42253 3000  100644  793       `

# For linux use "make libenglish.so" and "make dllinux" and run the
# programs using "LD_LIBRARY_PATH=. ./hello" and
# "LD_LIBRARY_PATH=. ./dlhello libenglish.so"

libenglish.so:
	gcc -fPIC -c english.c
	gcc -shared -o libenglish.so english.o
	gcc -c hello.c
	gcc -o hello hello.o -L. -lenglish

dllinux: libenglish.so
	gcc -c dlhello.c
	gcc -o dlhello dlhello.o -ldl

# For macosx use "make libenglish.dylib" and "make dlmac" and run the
# programs using "./hello" and "./dlhello ./libenglish.dylib"

libenglish.dylib: 
	gcc -fPIC -c english.c
	gcc -dynamiclib -o libenglish.dylib english.o
	gcc -c hello.c
	gcc -o hello hello.o -L. -lenglish

dlmac: libenglish.dylib
	gcc -c dlhello.c
	gcc -o dlhello dlhello.o

# common cleanup stuff

clean:
	/bin/rm -f hello dlhello *.o *.so *~ *.dylib