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Date:	Sun, 17 Feb 2013 14:01:02 -0500
Message-ID:	<CANvU5FzKq6CHZ+ndTNi+SMmoOp2_=a4f1PxCr29+Paz-AntZew@mail.gmail.com>
Subject:	Re: compilation of sqlite3 on dos using djgpp
From:	Matthew Petricone <strstream AT gmail DOT com>
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You could always write your own mmap function. I haven't used djgpp in a
while, but you would probably need to use the dpmi functions for large
memory allocs. You may be able to leave some mmap functionality out,
depending on how sqlite uses it.

-Matt
On Feb 17, 2013 8:16 AM, <mahesh DOT s DOT chavan AT gmail DOT com> wrote:

> Dear Sir,
> I want to compile Sqlite latest version on DOS. When I tried, I was able
> to make libsqlite3.a To make it work I have used fchown-stub.c But when I
> tried to link it to shell.o to make exe, it gave me error mmap undefined
> and munmap undefined. Both of them are defined in sys/stat.h
> I think mmap and munmap are specific to linux and there is no equ. in dos.
> While porting unix to dos many programmers should be facing the same
> problem.
> Please let me know, how to solve this problem.
> Thanking you.
>
>

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<p dir=3D"ltr">You could always write your own mmap function. I haven&#39;t=
 used djgpp in a while, but you would probably need to use the dpmi functio=
ns for large memory allocs. You may be able to leave some mmap functionalit=
y out, depending on how sqlite uses it. </p>

<p dir=3D"ltr">-Matt</p>
<div class=3D"gmail_quote">On Feb 17, 2013 8:16 AM,  &lt;<a href=3D"mailto:=
mahesh DOT s DOT chavan AT gmail DOT com">mahesh DOT s DOT chavan AT gmail DOT com</a>&gt; wrote:<br type=
=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Sir,<br>
I want to compile Sqlite latest version on DOS. When I tried, I was able to=
 make libsqlite3.a To make it work I have used fchown-stub.c But when I tri=
ed to link it to shell.o to make exe, it gave me error mmap undefined and m=
unmap undefined. Both of them are defined in sys/stat.h<br>

I think mmap and munmap are specific to linux and there is no equ. in dos.<=
br>
While porting unix to dos many programmers should be facing the same proble=
m.<br>
Please let me know, how to solve this problem.<br>
Thanking you.<br>
<br>
</blockquote></div>

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