Problem installing native Ruby MySQL driver on OS X
In case anyone else has the same problem installing the native Ruby MySQL driver onto their Mac, here is the fix that worked for me.
I was upgrading my install using the HiveLogic instructions and kept getting the following error every time I went to install the mysql gem.
mysql.c: In function 'Init_mysql': mysql.c:2015: error: 'ulong' undeclared (first use in this function) mysql.c:2015: error: (Each undeclared identifier is reported only once mysql.c:2015: error: for each function it appears in.) mysql.c:2015: error: parse error before numeric constant mysql.c:2018: error: parse error before numeric constant make: *** [mysql.o] Error 1
A little Googling later, and I found a solution on the jlaine.net website. There are several other solutions listed in the comments as well.