On Thursday 18 July 2002 21:09, Jon Cast wrote:
> Abraham Egnor <[EMAIL PROTECTED]> wrote:
> > This is something I just noticed...
> >
> > hello.hs:
> > module Main(main) where
> >
> > main = putStr "Hello world!\n"
> >
> > hello.c:
> > #include <stdio.h>
> >
> > int main(void)
> > {
> > printf("Hello world!\n");
> > return 0;
> > }
> >
> > [abe@shiva:~/src/test] $ ghc hello.hs -o hello_hs
> > [abe@shiva:~/src/test] $ gcc hello.c -o hello_c
> > [abe@shiva:~/src/test] $ ls -l hello_*
> > -rwxr-xr-x 1 abe engy 13712 Jul 18 11:34 hello_c
> > -rwxr-xr-x 1 abe engy 299900 Jul 18 11:33 hello_hs
> >
> > Why is the binary made by ghc 20 times bigger than the one made by gcc?
>
> I don't know for certain, but I've got a couple of guesses:
>
> 1. hello_hs is probably statically linked. hello_c is probably
> dynamically linked.
>
Right. The ldd command gives the dependencies (on Linux):
awo@asterix:~> ldd hello
libc.so.6 => /lib/libc.so.6 (0x40022000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
If you compile hello.c as static binary, like
gcc -static -o hello hello.c
then the resulting exe is rather big, too ;-)
awo@asterix:~> ls -l hello
-rwxr-xr-x 1 awo users 1486299 Jul 18 21:40 hello
So ghc isnt so bad, really :-)
Greetings
Andreas
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