gmodule help

["Greg Steffensen" <greg steffensen gmail com>]

Hey, I'm trying to use gmodule, but am unfamiliar with libtool and linking, and am unsure about what compilation commands to use (I've gone through the libtool info pages, but still can't quite get it to work).  Can anyone tell me how to compile a single source file that uses glib and gmodule into a ".so" file on Linux, such that gmodule can use it?  I've pasted the source for the very simple test library and test executable I'm trying to get to work below, though I don't expect that their contents are important.  Many thanks,

Greg

testplugin.c (to be compiled into a dynamically loadable library)
--------------------------
#include <glib.h>
#include <gmodule.h>

G_MODULE_EXPORT int test_func(gboolean bar) {
    return bar ? 1 : 2;
}



test.c (an executable that loads the library at runtime)
------------------------
#include <glib.h>
#include <gmodule.h>

#define PLUGIN_FILE "./libtestplugin.so"

typedef int (* TestFunc) (gboolean);

int main() {
    GModule *mod;
    TestFunc module_func;

    // open the module
    g_assert(g_module_supported());
    g_assert((mod = g_module_open(PLUGIN_FILE, G_MODULE_BIND_LAZY)) != NULL);

    // get a pointer a function
    g_assert(g_module_symbol(mod, "test_func", (gpointer)module_func));
    
    // test a module function
    g_print("%i\n", module_func(TRUE));
    g_print("%i\n", module_func(FALSE));
         
    return 0;
}