Added const qualifier for the strings
diff --git a/contiki/apps/makestrings b/contiki/apps/makestrings
index 8c35b71..8d044fc 100755
--- a/contiki/apps/makestrings
+++ b/contiki/apps/makestrings
@@ -18,7 +18,7 @@
       $datan =~ s/\\n/\n/g;
       $datan =~ s/\\0/\0/g;
       
-      printf(OUTPUTC "char $var\[%d] = \n", length($datan) + 1);
+      printf(OUTPUTC "const char $var\[%d] = \n", length($datan) + 1);
       printf(OUTPUTC "/* \"$data\" */\n");
       printf(OUTPUTC "{");
       for($j = 0; $j < length($datan); $j++) {
@@ -26,7 +26,7 @@
       }
       printf(OUTPUTC "};\n");
       
-      printf(OUTPUTH "extern char $var\[%d];\n", length($datan) + 1);
+      printf(OUTPUTH "extern const char $var\[%d];\n", length($datan) + 1);
       
     }
   }