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Is there a way to override a module's main function in the D programming language?
#!/usr/bin/env rdmd -version=scriptedmain

module scriptedmain;

import std.stdio;

int meaningOfLife() {
    return 42;
}

version (scriptedmain) {
    void main(string[] args) {
        writeln("Main: The meaning of life is ", meaningOfLife());
    }
}

#!/usr/bin/env rdmd -version=test

import scriptedmain;
import std.stdio;

version (test) {
    void main(string[] args) {
        writeln("Test: The meaning of life is ", meaningOfLife());
    }
}

$ ./scriptedmain.d
Main: The meaning of life is 42
$ ./test.d
Test: The meaning of life is 42
$ dmd scriptedmain.d -version=scriptedmain
$ ./scriptedmain
Main: The meaning of life is 42
$ dmd test.d scriptedmain.d -version=test
$ ./test
Test: The meaning of life is 42