--- netpbm-10.70.06-repacked.old/buildtools/configure.pl
+++ netpbm-10.70.06-repacked/buildtools/configure.pl
@@ -381,6 +381,9 @@
 
 
 sub displayIntroduction() {
+    print("Error: configure.pl [1]: This point shouldn't be reached\n");
+    exit (1);
+
     print("This is the Netpbm configurator.  It is an interactive dialog " .
           "that\n");
     print("helps you build the file 'config.mk' and prepare to build ");
@@ -2445,6 +2448,9 @@
 
     if ($systemRc >> 8 == 127) {
         print("\n");
+        print("Error: configure.pl [2]: This point shouldn't be reached\n");
+        exit (1);
+
         print("You do not appear to have the 'flex' or 'lex' pattern \n");
         print("matcher generator on your system, so we will not build \n");
         print("programs that need it (Thinkjettopbm)\n");