This patch allows www/node to build and run on powerpc64. It fixes incorrect assumptions between ELFv1/ELFv2 and LE/BE logic.
Tested with LLVM_DEFAULT version set to "90" and "-devel", but it probably works with version"80" too.devel/llvm-devel dependency is due to https://bugs.llvm.org/show_bug.cgi?id=43527