diff -rup orig/Makefile new/Makefile
--- orig/Makefile	2018-05-06 01:12:36.000000000 +0200
+++ new/Makefile	2019-05-01 08:16:53.647051200 +0200
@@ -5,7 +5,7 @@ all : ../out/wslbridge-backend
 ../out/wslbridge-backend : wslbridge-backend.cc ../common/SocketIo.cc ../common/SocketIo.h ../VERSION.txt Makefile
 	mkdir -p ../out
 	$(CXX) -std=c++11 -fno-exceptions \
-		-static-libgcc -static-libstdc++ \
+		-static -static-libgcc -static-libstdc++ \
 		-D_GNU_SOURCE \
 		-DWSLBRIDGE_VERSION=$(shell cat ../VERSION.txt) \
 		-Wall -O2 $< ../common/SocketIo.cc -o $@ -lutil -pthread
diff -rup orig/wslbridge-backend.cc new/wslbridge-backend.cc
--- orig/wslbridge-backend.cc	2018-05-06 01:12:36.000000000 +0200
+++ new/wslbridge-backend.cc	2019-05-01 08:19:12.799688500 +0200
@@ -494,6 +494,45 @@ static void frontendVersionCheck(const c
 
 } // namespace
 
+#define getpwuid _getpwuid
+
+struct passwd * getpwuid(int uid)
+{
+    FILE * pwd = fopen("/etc/passwd", "r");
+    if (pwd) {
+        char pwbuf[222];
+        static struct passwd pw;
+        pw.pw_shell = 0;
+        while (fgets(pwbuf, sizeof pwbuf, pwd)) {
+            char * sep = strchr(pwbuf, ':');
+            if (!sep) continue;
+            sep = strchr(++sep, ':');
+            if (!sep) continue;
+            int pwuid;
+            if (sscanf(sep, ":%d:", &pwuid) == 1 && pwuid == uid) {
+                // pw_name:pw_passwd:pw_uid:pw_gid:pw_gecos:pw_dir:pw_shell
+                //                  ^
+                sep = strchr(++sep, ':');
+                if (!sep) continue;
+                sep = strchr(++sep, ':');
+                if (!sep) continue;
+                sep = strchr(++sep, ':');
+                if (!sep) continue;
+                sep = strchr(++sep, ':');
+                if (!sep) continue;
+                pw.pw_shell = ++sep;
+                sep = strchr(++sep, '\n');
+                if (sep)
+                    *sep = 0;
+                break;
+            }
+        }
+        fclose(pwd);
+        return &pw;
+    }
+    return 0;
+}
+
 int main(int argc, char *argv[]) {
 
     // If the backend crashes, it prints a message to its stderr, which is a