Index: diffutils-3.7/src/util.c
===================================================================
--- diffutils-3.7.orig/src/util.c
+++ diffutils-3.7/src/util.c
@@ -1074,7 +1074,7 @@ lines_differ (char const *s1, char const
 		      while ((c = *p) != '\n' && isspace (c))
 			++p;
 		      if (c != '\n')
-			break;
+			goto not_eol;
 		    }
 		  if (c2 != '\n')
 		    {
@@ -1082,11 +1082,12 @@ lines_differ (char const *s1, char const
 		      while ((c = *p) != '\n' && isspace (c))
 			++p;
 		      if (c != '\n')
-			break;
+			goto not_eol;
 		    }
 		  /* Both lines have nothing but whitespace left.  */
 		  return false;
 		}
+	    not_eol:
 	      if (ignore_white_space == IGNORE_TRAILING_SPACE)
 		break;
 	      FALLTHROUGH;