Windows doesn't have a libc (parcel-bundler#208)

Co-authored-by: Devon Govett <devongovett@gmail.com>

Author: mischnic

scripts/build-npm.js

@@ -78,7 +78,7 @@ function buildNode(triple, cpu, os, abi, t) {
   pkg2.name += '-' + t;
   pkg2.os = [os];
   pkg2.cpu = [cpu];
-  if (abi) {
+  if (abi && os !== "win32") {
     pkg2.libc = [abiToNodeLibc[abi] || abi];
   }
   pkg2.main = name;
@@ -108,7 +108,7 @@ function buildCLI(triple, cpu, os, abi, t) {
   pkg2.os = [os];
   pkg2.cpu = [cpu];
   pkg2.files = [binary];
-  if (abi) {
+  if (abi && os !== "win32") {
     pkg2.libc = [abiToNodeLibc[abi] || abi];
   }
   delete pkg2.main;