Because they aren’t bsd ports.
- They force you to carry redundant dependencies.
- They do not allow you to fetch and compile the source files in a transparent way.
- They do not give you clean access to the patches they use to make things work.
- They haven’t had a current version of avr-gcc in over 4 years.
- They just dont get it.
Today, I am working on a cross platform USB device which I hope to interface with ruby, python, and perl using libusb. The ruby bindings for libusb are for 1.0.xx which actually almost works on OSX nowadays. A quick sampling of using ruby-usb on osx, like most things embedded in apple land, is a trip more or less to hell. (see: http://www.jedi.be/blog/2009/11/11/ruby-usb-libusb/ http://www.ruby-forum.com/topic/192042) . Since most of my ruby is gem installed I just need a working version of libusb so I go to the darwin ports recommended above. Looking at the “raw” port file I see that there are really only two patches and so I go find them. They aren’t exposed for reasons that seem pretty stupid to me, but I did find them at. http://libusb.darwinports.com/dports/devel/libusb/files/patch-libusb__io.c and http://libusb.darwinports.com/dports/devel/libusb/files/patch-libusb__os__darwin_usb.c
When I downloaded the source file and went to wget the patches it got even more screwey.
wget http://libusb.darwinports.com/dports/devel/libusb/files/patch-libusb__io.c --2010-07-06 00:28:13-- http://libusb.darwinports.com/dports/devel/libusb/files/patch-libusb__io.c Resolving libusb.darwinports.com... 184.108.40.206 Connecting to libusb.darwinports.com|220.127.116.11|:80... connected. HTTP request sent, awaiting response... 403 Forbidden 2010-07-06 00:28:13 ERROR 403: Forbidden.
I didn’t want to deal with it so I just saved the links in my browser and patched the source files manually. After that a
./configure; make && make install && make clean
let me do the normal ruby thing.
gem install ruby-usb
Just like on all the other operating systems.