finding libraries from linker via $ORIGIN

[John Reiser]

> Is there a way to force gcc to use a different linker that I can control
> from a Makefile (such as via an environment variable). Or is my only
> option to make sure that the ld found via the PATH is gold and not the
> old linker?

The gcc mechanism is called "spec files".  Hints are shown by:
   $ gcc --verbose hello.c
   Using built-in specs.
   COLLECT_GCC=/usr/bin/gcc
   COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=x86-64'

Consult the gcc documentation "info gcc" node "* Spec Files::"
Changing and debugging a spec file can be tedious.

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