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Date:	Sun, 08 Apr 2012 11:10:10 +0800
From:	De-Jian Zhao <dejian DOT zhao AT gmail DOT com>
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To:	cygwin AT cygwin DOT com
CC:	marco DOT atzeri AT gmail DOT com
Subject:	Re: Can RPM packages be installed into Cygwin?
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On 2012-4-7 16:12, marco atzeri wrote:
> On 4/7/2012 9:40 AM, De-Jian Zhao wrote:
>> Dear all,
>>
>> I noticed that there is a command - rpm - under Cygwin 1.7. Does that
>> mean RPM packages can be installed into Cygwin?
>>
>> I tried to install ncbi-blast-2.2.26+-3.i686.rpm (see:
>> ftp://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/LATEST/ ) into
>> Cygwin 1.7.13 with the command "install -i
>> ncbi-blast-2.2.26+-3.i686.rpm". However, error message appeared as
>> below. I tried to search for the missing libs using the setup.exe of
>> Cygwin. It seems that some of them were not present, such as libc.so.6,
>> libdl.so.2, libm.so.6, libnsl.so.1, and libz.so.1. Where can I get these
>> libs? Thanks!
>>
>> $ rpm -i ncbi-blast-2.2.26+-3.i686.rpm
>> error: Failed dependencies:
>> /usr/bin/perl is needed by ncbi-blast-2.2.26+-3
>> libbz2.so.1 is needed by ncbi-blast-2.2.26+-3
>> libc.so.6 is needed by ncbi-blast-2.2.26+-3
> {cut]
>>
>>
> ...isn't it?
>
> from cygwin website (first page):
>
> Cygwin is not:
>
> -    a way to run native Linux apps on Windows. You must rebuild your 
> application
>      from source if you want it to run on Windows.
> -    a way to magically make native Windows apps aware of UNIX® 
> functionality like
>      signals, ptys, etc. Again, you need to build your apps from 
> source if you want
>      to take advantage of Cygwin functionality.
>
> Regards
> Marco
Thanks, Marco. I was not trying to run a native linux apps, and instead 
tried to rebuild the app from source. The BLAST software provides the 
Build.sh and Check.sh scripts under the dirctory of 
ncbi-blast-2.2.26+-src.tar\ncbi-blast-2.2.26+-src\c++\compilers\cygwin\. 
So I think it is possible to run the software under cygwin. However, the 
compilation stopped at "checking for python", even if python was 
installed. That's to say, I installed the latest python and the 
compilation could find it, but the compilation tried to search for 
python2.3 and 2.4 further, and stopped when searching for 2.4.

What I am concern is that whether the i686.rpm indicates it is prepared 
for cygwin. As you know, when you run "uname -smo" , you can get 
something like this "CYGWIN_NT-5.1 i686 Cygwin". I think the package 
ncbi-blast-2.2.26+-3.i686.rpm is for Cygwin. Is that right? Has anyone 
ever succeeded in installing a RPM package into cygwin using "rpm -i *rpm"?

Regards
Dejian

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