environment: Properly pass linker to rustc
environment: Properly pass linker to rustc

rustc is very different than other compilers, in that it doesn't
generate object files, it just creates a final target out of the
intermediate sources. As such, it needs to know about the linker args in
the compiler invocation.

QuLogic/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,QuLogic/meson,QuLogic/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,QuLogic/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,pexip/meson,jpakkane/meson,pexip/meson,jpakkane/meson,QuLogic/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,pexip/meson,QuLogic/meson,pexip/meson,jpakkane/meson,QuLogic/meson,jpakkane/meson