mxcl/homebrew — pull request #21674 by jvansanten (2013-08-05 16:41:08+00:00)
Title: Install headers in subdirectory

MySQL has some fairly generically-named headers (e.g. big_endian.h, errmsg.h), and most packagers (e.g. Debian, FreeBSD) install them in a subdirectory to avoid conflicts. Homebrew should follow this convention so that headers can be found in the expected place.