From: goldfita@...
Date: 2006-03-27T13:28:56+09:00
Subject: compile in static library with mkmf

I have the following directory structure.

~/pyastman/ruby/              #ruby build dir
~/pyastman/                     #code and library to wrap

The library is libast_man.a, which I want to link into my ruby
extension module at compile time.  I'm not sure if this can be done
with a static library.  It's not clear to me from the instructions.  I
tried

require 'mkmf'
dir_config("ast_man")
have_library("ast_man","ast_connect")
create_makefile("rb_astman")

ruby extconf.rb --with-ast_man-lib=~/pyastman

It can't find the library.  I tried various permutations on the names
as well.  The next best thing would be to just tell it where the object
file is or even recompile the library.  But I couldn't figure out how
to do this with mkmf either.

Thanks.