#define IMPLEMENT_MODULE_2(A, B) A##B
#define IMPLEMENT_MODULE(name) IMPLEMENT_MODULE_2(something, name)

#define PLUGIN_NAME SomePluginName
#define _STR(s) #s
#define STR(s) _STR(s)
#define PLUGIN_NAME_STR STR(PLUGIN_NAME)

int main()
{
    string expected = "somethingSomePluginName";
    string actual = STR(IMPLEMENT_MODULE(PLUGIN_NAME));

    printf("expected: %s || actual: %s\n", expected.c_str(), actual.c_str());
    assert(expected == actual);
}

expected: somethingSomePluginName || actual: somethingSomePluginName