Can RPM packages be installed into Cygwin?

[Warren Young]

On 4/9/2012 9:12 AM, De-Jian Zhao wrote:
> the compilation
> always stopped at "checking python" even after python was installed.

My wild guess based on no personal experience with BLAST+ is that there 
is some linkage error here.  I'd have to try it myself (not interested) 
or examine the config.log file (still not interested) to figure out if 
this guess is correct.

I'd bet there are more Cygwin-using BLAST+ users on the BLAST+ mailing 
list than on the Cygwin list, so you'd have a better chance of getting a 
solution by sending the config.log file to that list than continuing to 
pursue this problem here.

Instead of trying to start with RPM, I'd recommend figuring out how to 
build BLAST+ to build from source first.  You need that experience to 
help you build binary packages.

I think you'll have an easier time learning to build a native Cygwin 
package than trying to get the .src.rpm file to rebuild on Cygwin:

	http://cygwin.com/setup.html

That page gives several methods for building Cygwin packages.  I'd 
recommend going with the Cygport option.  Cygport does fewer things than 
RPM, so building .cygport files is easier than building RPM .spec files. 
  (In Cygwin, much of the rest of what RPM does lives in setup.exe and 
cygcheck.exe.)

I doubt there's enough value in the existing BLAST+ .spec file to make 
it an easier path for you than building a .cygport file from scratch.

> Then what is [the rpm package] for?

It is for people who wish to build a secondary packaging system on top 
of Cygwin's native system.

It doesn't magically port Linux RPM packages over for you.  You still 
have to do that work yourself.  And, you have to do that work without 
having the benefit of an ecosystem of existing RPM binary packages, upon 
which that BLAST+ .spec file probably depends.

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