opensc @0.16.0: new port

[lbschenkel (Leonardo Brondani Schenkel)]

​OpenSC contains a number of tools and libraries for smart cards, including a PKCS#11 driver that can be used by other software such as OpenSSH, OpenSSL, Firefox, Thunderbird, among others.

The attached Portfile builds the source in a way that replicates what the MacOSX/build-package script does.

I'm a heavy user of this tool and I have been building it from source for a long time. I'm volunteering to be the maintainer of this port.

P.S.: OpenSC also includes a TokenD module for macOS which integrates with the Keychain, however I am not building that yet — I want to get the basic Portfile merged first because building the TokenD module is more complicated and it will require the module to be installed outside /opt/local: in /Library/Security/tokend. When I manage to build that via MacPorts I plan to introduce a +tokend variant that will be disabled by default, but it could also be a subport or a different port. Any suggestions on the matter are greatly appreciated.

[lbschenkel (Leonardo Brondani Schenkel)]

I have updated the patch to set the default PKCS#11 provider to ${prefix}/lib which makes it possible to use pkcs11-tool without having to manually specify the path to the opensc shared library.

[mf2k (Frank Schima)]

Thanks. Can we add openmaintainer?

[mf2k (Frank Schima)]

Also, I think some dependencies are missing:

$ otool -L  /opt/local/bin/opensc-tool
/opt/local/bin/opensc-tool:
	/opt/local/lib/libopensc.4.dylib (compatibility version 5.0.0, current version 5.0.0)
	/opt/local/lib/libcrypto.1.0.0.dylib (compatibility version 1.0.0, current version 1.0.0)
	/opt/local/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.8)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1226.10.1)

$ port provides /opt/local/lib/libcrypto.1.0.0.dylib
/opt/local/lib/libcrypto.1.0.0.dylib is provided by: openssl

It looks like openssl is needed at least. Can libressl be used in place of it?

[lbschenkel (Leonardo Brondani Schenkel)]

Sorry, I've made a mistake and the version I submitted had the dependency missing. I'm resubmitting the patch.

Yes, libressl works — in fact that's how I use it myself and I had to include a patch to make it build. I have submitted it upstream and it has been merged so it will go away in 0.17.0.

[lbschenkel (Leonardo Brondani Schenkel)]

included libcrypto dependency

[lbschenkel (Leonardo Brondani Schenkel)]

Regarding the openmaintainer I am not entirely sure what you mean by that question. I am volunteering to be the maintainer of this port, so feel free to leave me there if there are no other candidates.

[lbschenkel (Leonardo Brondani Schenkel)]

Regarding the dependency to libcrypto, I have emulated what I saw in other ports but feel free to change that to lib:libcrypto:openssl which is probably more idiomatic and most likely the preferred form.

[mf2k (Frank Schima)]

I think the best description is ​here. For maintainers who are not Macports team members, which is common, it is best to allow openmaintainer so we can easily make minor fixes as needed.

[lbschenkel (Leonardo Brondani Schenkel)]

Got it. Sure, go ahead, please add openmaintainer as well.

[mf2k (Frank Schima)]

Added in r153185 with minor formatting changes and openmaintainer.

For the next step, I would recommend submitting a new port for opensc-tokend rather than adding a variant.

[lbschenkel (Leonardo Brondani Schenkel)]

I have submitted the new variant on #52431. I had to add a variant instead of introducing a new port for the reasons described on that ticket's description.