From: Perry Smith <pedzsan@...>
Date: 2011-01-29T11:25:12+09:00
Subject: [ruby-core:34966] Re: Setting libpath for AIX


On Jan 28, 2011, at 7:17 PM, Yutaka Kanemoto wrote:

> Hi,
> 
> If you add -L. when you link a library/executable, the linker add .
> (current dir) to libpath by default.
> We need to avoid this not to load unexpected library for security
> reason. That is the reason why now we use -blibpath to explicitly
> decide the libpath.
> 
> I think it is hard to eliminate "-L.", "-L../.." from current build process.
> We need to look for another way to add such path to libpath.
> If you have any nice idea, please let me know.

I believe what you are saying is currently, the link lines often have -L .
and -L .. so you want to avoid adding . and .. to the internal libpath of
the shared library or executable.

Curiously, -blibpath is not specified in the places that -L . and -L ..
is being passed.  libpath is specified only in three places in the build
I just did.  The link of miniruby, libruby.so, and ruby

There are other ways to avoid -L . and -L .. if that really is needed but
I don't see how that concern relates to the link commands that
specify libpath.

The link of these three specify:

-Wl,-blibpath:/usr/local//rvm/rubies/ruby-1.9.1-p378/lib:/usr/lib:/lib

I'm suggesting replace that with:

-L /usr/local//rvm/rubies/ruby-1.9.1-p378/lib

Perry