diff -Nru pet-0.99.13.orig/cheap/xml-tokenizer.cpp pet-0.99.13/cheap/xml-tokenizer.cpp
--- pet-0.99.13.orig/cheap/xml-tokenizer.cpp	2007-02-15 17:42:51.000000000 +0900
+++ pet-0.99.13/cheap/xml-tokenizer.cpp	2007-02-15 18:42:00.000000000 +0900
@@ -27,12 +27,23 @@
   if (input.compare(0, 2, "<?") == 0)
     tokenize_from_stream(input, result);
   else {
+    /* 
     string::iterator it = input.find_last_of('\n');
     // trim trailing newlines
     while (it != input.end() && it + 1 == input.end()) {
       input.erase(it);
       it = input.find_last_of('\n');
     }
+    */
+    // find_last_of() doesn't seem to want to return an iterator in
+    // g++ 4.1 and it seems silly to iterate through the end of the
+    // string deleting newlines manually when we could use
+    // find_last_not_of() instead.
+    // Eric Nichols <eric-n@is.naist.jp>, 2007/2/15
+    int it = input.find_last_not_of('\n');
+    if (it != string::npos) {
+      input.erase(it + 1);
+    }
     tokenize_from_file(input, result);
   }
 }