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Re: Can RPM packages be installed into Cygwin?
On 4/18/2012 12:21 PM, De-Jian Zhao wrote:
Is there a way to export the package info or lib
info of setup.exe to rpm? If they can share information, the problem
will be easily solved.
I said it before, but a .src.rpm built for one Linux distribution
typically will not just recompile as-is on another Linux. Expecting
effortless portability to an entirely different platform like Cygwin is
a pipe dream.
You seem to be envisioning a world where the RPM spec file says it
requires libfoo-1.2.3.so or whatever, and that someone has ported that
to Cygwin. Then all you'd need to do is change RPM so it knows how to
mung file names to cygfoo-1.2.3.dll or whatever.
That *could* happen.
What actually happens more commonly is:
- The Fedora spec file says it depends on the foo-devel package, which
contains the .so file in question.
- The SuSE spec file says it depends on the foo-shared-lib package
instead, because that's what the same package is called there.
- The Repoforge spec file depends on the platform spec file, but also on
a passel of other infrastructure that has no direct correspondence to
anything else, and without it it won't even rebuild on supported platforms.
- The third-party spec file which was built to support the first-party
foo package from the upstream vendor (as opposed to the version in the
distro) says it depends on the first-party foo-community-shared package.
So, which one should this mythical Cygwin .pkg -> RPM DB tool convert
the dependencies to?
The first scenario above also ignores versioning issues.
This mythical automatic package porting tool you imagine cannot be
magicked into existence with a "But if you just..." observation. There
is no "just". It would probably take more work to build the automatic
dependency translation tool than to just manually port everything.
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