koool, that explains much better...thanks a lot.
On Fri, 03 Feb 2006 Eric Blake wrote :
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Top-posting reformatted: http://cygwin.com/acronyms/#TOFU
>> I am new to Cygwin. I have a very basic question.
>> There is a tool Driftnet available only for Unix. I want to
write it
> for
>> I Windows making a few improvements as a part of my Master's
thesis. I
>> am confused here, can cygwin provide me some files like
netinet/tcp.h
>> etc. available in Linux (which are used for coding driftnet)
in
> Windows?
>
> Yes, cygwin has <netinet/tcp.h>. In fact, if you have source
code that
> compiles under Linux, it is often the case that the same
source code will
> compile under cygwin with minimal tweaking.
>
According to Amruta on 2/3/2006 12:49 AM:
> But does that mean to run this software everybody will have to
download
> cygwin on their machine?
If you compile against cygwin, yes. There are other projects out
there,
such as mingw, which allow native compilation that does not
depend on
cygwin1.dll (in fact, cygwin's gcc comes with a -mno-cygwin flag
to select
mingw compilation). However, mingw cannot support as many
headers as
cygwin, because it is cygwin doing the translation from POSIX
semantics to
windows. Discussing mingw compilation is somewhat off-topic on
this list,
as it more properly belongs on the mingw list.
> Is there any way you can simply keep the required files (say
in my case
> netinet/tcp.h) on your system and don't need to keep entire
cygwin package.
No - headers are provided by the system for a reason - compiling
against
headers means that your program must run on the system that
provided those
headers. Windows doesn't provide <netinet/tcp.h> because
Microsoft
doesn't believe in following standards such as POSIX. Your
choices are to
do some heavy porting to what windows actually does provide, or
else to
let cygwin do the porting and introduce a dependency on cygwin.
> Basically it doesn't make sense if people have to install 100s
of MB of
> files for running the tool.
100s of MB? I beg to differ. A minimal cygwin installation is
just a few
megabytes; cygwin1.dll itself is currently 1.8 meg (actually, I
haven't
done a minimal install lately to see how much really IS
installed, maybe
the set of Base packages in cygwin has grown to 100 megabytes by
now).
But there is no requirement that you must download every single
package
provided at cygwin.com to use cygwin.
- --
Life is short - so eat dessert first!
Eric Blake [EMAIL PROTECTED]
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