* opts.c (wrap_help): Fix overflow.

From-SVN: r74737

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d1ed45caeabe1b97a6eb6cc545bc6cb206f637bf..eea71982922a76e9937c53c53d7599a1fe8454f7 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2003-12-17  Segher Boessenkool  <boessen@de.ibm.com>
+
+       * opts.c (wrap_help): Fix overflow.
+
 2003-12-17  Fred Fish  <fnf@redhat.com>
 
        * configure.in: Remove code to examine linker scripts and set

diff --git a/gcc/opts.c b/gcc/opts.c
index 41cecc1cda6f71c2ac9486bde0716eded4d08dc0..0497cb017098b13fb9baef3189be4cc168f1e913 100644 (file)
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -1829,7 +1829,7 @@ wrap_help (const char *help, const char *item, unsigned int item_width)
                len = i;
              else if ((help[i] == '-' || help[i] == '/')
                       && help[i + 1] != ' '
-                      && ISALPHA (help[i - 1]))
+                      && i > 0 && ISALPHA (help[i - 1]))
                len = i + 1;
            }
        }