From: "Paul E.C. Melis" <melis@...>
Date: 2002-03-19T00:44:17+09:00
Subject: Re: Extconf.rb: how to add specific include/lib dirs?

Well, you're right.... looks like the Pickaxe book was wrong there...

For the errata:
P.185
--with-<name>-include=dir
adds the specified dir to the compile command, NOT dir/include
--with-<name>-library=dir
adds the specified dir to the link command, NOT dir/lib

Paul

"ts" <decoux@moulon.inra.fr> wrote in message
news:200203181332.g2IDWL318914@moulon.inra.fr...
> >>>>> "P" == Paul E C Melis <melis@cs.utwente.nl> writes:
>
> P> Is it possible to specify a complete include or lib directory that is
needed
> P> to build an extension, and I don't mean the --with-<name>-dir
> P> or --with-<name>-include ways.
> P> These assume that include and library files will always reside in an
> P> /include and /lib subdirectory respectively.
>
>  No, this is not true
>
> pigeon% cat extconf.rb
> require 'mkmf'
> $CPPFLAGS += " -I#{idir}" if idir = with_config('tt-include-dir')
> create_makefile('tt')
> pigeon%
>
> pigeon% ruby extconf.rb --with-tt-include-dir=/tmp
> creating Makefile
> pigeon%
>
> pigeon% grep -- -I Makefile
> CPPFLAGS = -I. -I$(hdrdir) -I$(srcdir) -I$(prefix)/include    -I/tmp
> pigeon%
>
>
>
>
> Guy Decoux
>