manpath change for ports ?

[Tijl Coosemans]

On Wed, 08 Mar 2017 16:39:50 +0100 Dag-Erling Smørgrav <des at des.no> wrote:
> 4) Remove the hardcoded library path in lang/gcc*
> 
> This makes it possible to work on software that includes both libraries
> and programs while an earlier copy of the same software is already
> installed.  With the current state of gcc, the programs you are working
> on will be linked against the version of the library that's already
> installed instead of the version you just compiled, and there is nothing
> you can do to prevent it.  You won't notice anything if all you ever do
> is "make && make install", because the new library will replace the old,
> but if you try to run your program directly from the build tree, it will
> use the wrong library.  This can be incredibly frustrating if you're not
> aware of it - imagine you're trying to fix a bug in that library and no
> matter what you do, your regression test keeps failing...

Are you talking about gcc implicitly searching /usr/local/include and
/usr/local/lib?