RFC: An option to link against static gcc libraries

[H. J. Lu]

Gcc build executable linking against dynamic libraries by default.
"-static" will link against all static libraries. For run-time
portability, we may want to link against static gcc libraries, like
libstdc++.a, libgfortran.a, libgcj.a, ...., but against dynamic system
libraries, when we building executables. Currently, there is no easy
way to do it. We have -static-libgcc for libgcc.a. It will be nice to
have -static-gcclibs or something like that, to link against static
gcc libraries.


H.J.