How to get the dang thing to work (Was: Linux: How to statically link against system libs?)

[Nick Sabalausky]

"Kai Meyer" <kai at unixlords.com> wrote in message 
news:ip9bro$1lak$1 at digitalmars.com...
> On 04/26/2011 02:28 PM, Nick Sabalausky wrote:
>> Ok, so I guess statically linking against the stuff isn't the way to go, 
>> and
>> apparently DLL hell is worse on linux. Sooo...What do I do?
>>
>> In the other thread, Spacen said: "The way to do this is to link against 
>> the
>> oldest libc you need to
>> support, thus making the binaries forward compatible"
>>
>> I know my way around Linux as a user, but with deeper system stuff like 
>> that
>> I'm pretty much lost. I don't have a clue how to do what Spacen suggests 
>> or
>> how to determine what version of libc I need. Can anyone help me out with
>> that?
>>
>>
>
> Can you backup, and help me understand what the first problem was? The one 
> you thought was solvable by statically linking against glibc?
>

It was the thread "D CGI test: linux.so.2: bad ELF interpreter: No such file 
or directory".

Reposted here:

-------------------------

I've made a little test CGI app:

import std.conv;
import std.stdio;

void main()
{
 auto content = "<b><i>Hello world</i></b>";
 auto headers =
`HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Content-Length: `~to!string(content.length);

 while(readln().length > 1) {}

 writeln(headers);
 writeln();
 writeln(content);
}

Works on Windows command line and through IIS. And it works on my Kubuntu
10.6 (CORRECTION: It's v10.04) command line. But if I copy the executable 
from my Kubuntu box to my
web host's Debian server (CORRECTION: It's Red Hat, but there is another 
server I'd like to also run on that is Debian): Running it through Apache 
gives me a 500, and running it directly with ssh gives me:

linux.so.2: bad ELF interpreter: No such file or directory

I assume that error message is the cause of the 500 (can't tell for sure 
because the 500 isn't even showing up in my Apache error logs). But I'm not 
enough of a linux expert to have the slightest clue what that error message 
is all about. I don't need to actually compile it *on* the server do I? I 
would have thought that all (or at least most) Linux distros used the same 
executable format - especially (K)Ubuntu and Debian.