diff -ur dpkg-1.18.10/dselect/method.cc dpkg-1.18.10+iPhone/dselect/method.cc
--- dpkg-1.18.10/dselect/method.cc	2016-07-04 16:00:41.000000000 -1000
+++ dpkg-1.18.10+iPhone/dselect/method.cc	2018-07-25 16:26:13.000000000 -1000
@@ -50,10 +50,10 @@
 static const char *const methoddirectories[]= {
   LIBDIR "/" METHODSDIR,
   LOCALLIBDIR "/" METHODSDIR,
-  nullptr
+  NULL
 };
 
-static char *methodlockfile = nullptr;
+static char *methodlockfile = NULL;
 static int methlockfd= -1;
 
 static void
@@ -84,7 +84,7 @@
   int nread;
 
   if (!options) {
-    newoptions = nullptr;
+    newoptions = NULL;
     nread= 0;
     for (ccpp= methoddirectories; *ccpp; ccpp++)
       readmethods(*ccpp, &newoptions, &nread);
@@ -101,7 +101,7 @@
 static enum urqresult lockmethod(void) {
   struct flock fl;
 
-  if (methodlockfile == nullptr)
+  if (methodlockfile == NULL)
     methodlockfile = dpkg_db_get_path(METHLOCKFILE);
 
   if (methlockfd == -1) {
@@ -124,7 +124,7 @@
     sthfailed(_("cannot lock access method area"));
     return urqr_fail;
   }
-  push_cleanup(cu_unlockmethod, ~0, nullptr, 0, 0);
+  push_cleanup(cu_unlockmethod, ~0, NULL, 0, 0);
   return urqr_normal;
 }
 
@@ -140,7 +140,7 @@
 
   pid = subproc_fork();
   if (pid == 0) {
-    subproc_signals_cleanup(0, nullptr);
+    subproc_signals_cleanup(0, NULL);
     command_exec(cmd);
   }
 
@@ -178,7 +178,7 @@
 
     command_init(&cmd, coption->meth->path, name);
     command_add_args(&cmd, exepath, dpkg_db_get_dir(),
-                     coption->meth->name, coption->name, nullptr);
+                     coption->meth->name, coption->name, NULL);
     ur = falliblesubprocess(&cmd);
     command_destroy(&cmd);
   } else {
@@ -204,7 +204,7 @@
 
   command_init(&cmd, DPKG, name);
   command_add_args(&cmd, DPKG, "--admindir", dpkg_db_get_dir(), "--pending",
-                   dpkgmode, nullptr);
+                   dpkgmode, NULL);
 
   cursesoff();
   printf("running dpkg --pending %s ...\n",dpkgmode);
@@ -243,7 +243,7 @@
 
     command_init(&cmd, coption->meth->path, _("query/setup script"));
     command_add_args(&cmd, METHODSETUPSCRIPT, dpkg_db_get_dir(),
-                     coption->meth->name, coption->name, nullptr);
+                     coption->meth->name, coption->name, NULL);
     ur = falliblesubprocess(&cmd);
     command_destroy(&cmd);
     if (ur == urqr_normal) writecurrentopt();