From: Dave Howell <groups.2009a@...>
Date: 2010-06-18T03:46:00+09:00
Subject: Dear gem: still no zlib.

I really really regret ever installing SnowLeopard. 

I'm trying to build some HTML. I'd been using LibXML, but it's getting seriously anal-retentive on me, escaping stuff that I don't want escaped and complaining about not mixing documents. I figured I'd look for something that wouldn't keep interfering with me getting my work done. 

Hmm! Looks like Nokogiri might do that, and it's already installed. Let's try that. 

>> require 'nokogiri'
...no suitable image found.  Did find: . . ./nokogiri.bundle: mach-o, but wrong architecture 

$*@*X&#&%&*#&*@#*$*#&

Stupid SnowLeopard. 

Fine!

$ gem uninstall nokogiri
[But lots of things depend on this!]
Yea, I know. Delete it anyway.

$ gem install nokogiri
zlib is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.

[bang head on desk]

[visit nokogiri.org]

"Because Nokogiri needs to be compiled and dynamically linked against both libxml2 and libxslt, it has gained a reputation for being complicated to install. Let’s wrassle this little myth to the ground, shall we?
The following should work on both Leopard and Snow Leopard:
	sudo port install libxml2 libxslt
	sudo gem install nokogiri"

I'm pretty sure I already did this. . . .

$ sudo port install libxml2 libxslt
--->  Computing dependencies for libxml2
--->  Cleaning libxml2
--->  Computing dependencies for libxslt
--->  Cleaning libxslt
$ sudo gem install nokogiri
zlib is missing. 

Newsflash: Myth that nokogiri hard to install? Not wrassled to ground. 
News Addenda: *Anything* that requires a port install is NOT easy to install. Installing MacPorts (a few months ago) was a nightmare. 

gem tells me that I have some options:
	--with-zlib-include
	--without-zlib-include=${zlib-dir}/include
	--with-zlib-lib
	--without-zlib-lib=${zlib-dir}/lib

These absolutely mystify me. If i'm going to tell it I want it to install a gem WITHOUT a library, why would I tell it where the library is? I want to tell it to build WITH  the library. THAT library. The one sitting RIGHT OVER THERE. 

Well, at least I *think* it's over there. I have /opt/local/lib/libz.dylib -> libz.1.2.5.dylib. Is that some other library that does some other z-shaped thing? If not, how the heck do I make rubygems USE it? 

$*@(#*$&*%)~!($ 64-bit library hell.