Set -R/-L in the LDFLAGS variable by default.

[sjorge]

Hey,

I think it would be a sane idea to set the -L AND -R flag by default so that libraries in $PREFIX/lib and $PREFIX/lib/$ISAPART64 are picked up by there respective linking stages. (and removing the need for LD_LIBRARY_RUN to be set)

I think this is what most people would expect to happen, build a library in the prefix, make prog or other library that depends (build and/or runtime wise) on the same library that it would sort of... you know just work instead of needing LD_LIBRARY_RUN or manual injection of the -L and -R flags.