[SPARC] Make buildable on Solaris/SPARC

com.oracle.truffle.r.native/library/base/Makefile

com.oracle.truffle.r.native/library/base/src/solaris

com.oracle.truffle.r.native/library/datasets/src/solaris

com.oracle.truffle.r.native/library/grDevices/src/solaris

com.oracle.truffle.r.native/library/graphics/src/solaris

com.oracle.truffle.r.native/library/lib.mk

com.oracle.truffle.r.native/library/methods/src/solaris

com.oracle.truffle.r.native/library/stats/src/solaris

com.oracle.truffle.r.native/library/tools/src/solaris

com.oracle.truffle.r.native/library/utils/src/solaris

.../com/oracle/truffle/r/nodes/builtin/RBuiltinPackages.java