Without this patch functions such as process.getgroups
are not built on Android, which breaks things such as
npm/node_modules/which/which.js.

diff -u -r ../node-v9.1.0/src/node.cc ./src/node.cc
--- ../node-v9.1.0/src/node.cc	2017-11-07 16:08:24.000000000 +0100
+++ ./src/node.cc	2017-11-11 19:19:05.080439199 +0100
@@ -108,7 +108,7 @@
 #include <unistd.h>  // setuid, getuid
 #endif
 
-#if defined(__POSIX__) && !defined(__ANDROID__) && !defined(__CloudABI__)
+#if defined(__POSIX__) && !defined(__CloudABI__)
 #include <pwd.h>  // getpwnam()
 #include <grp.h>  // getgrnam()
 #endif
@@ -2122,7 +2122,7 @@
 }
 
 
-#if defined(__POSIX__) && !defined(__ANDROID__) && !defined(__CloudABI__)
+#if defined(__POSIX__) && !defined(__CloudABI__)
 
 static const uid_t uid_not_found = static_cast<uid_t>(-1);
 static const gid_t gid_not_found = static_cast<gid_t>(-1);
@@ -2441,7 +2441,7 @@
   }
 }
 
-#endif  // __POSIX__ && !defined(__ANDROID__) && !defined(__CloudABI__)
+#endif  // __POSIX__ && !defined(__CloudABI__)
 
 
 static void WaitForInspectorDisconnect(Environment* env) {
@@ -3711,7 +3711,7 @@
 
   env->SetMethod(process, "umask", Umask);
 
-#if defined(__POSIX__) && !defined(__ANDROID__) && !defined(__CloudABI__)
+#if defined(__POSIX__) && !defined(__CloudABI__)
   env->SetMethod(process, "getuid", GetUid);
   env->SetMethod(process, "geteuid", GetEUid);
   env->SetMethod(process, "setuid", SetUid);
@@ -3725,7 +3725,7 @@
   env->SetMethod(process, "getgroups", GetGroups);
   env->SetMethod(process, "setgroups", SetGroups);
   env->SetMethod(process, "initgroups", InitGroups);
-#endif  // __POSIX__ && !defined(__ANDROID__) && !defined(__CloudABI__)
+#endif  // __POSIX__ && !defined(__CloudABI__)
 
   env->SetMethod(process, "_kill", Kill);