[Bug bootstrap/44107] libstdc++ (dylib) is built with an erroneous dependency towards /usr/lib

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44107

--- Comment #5 from Iain Sandoe <iains at gcc dot gnu.org> 2011-03-19 15:06:07 
UTC ---

in addition to the attachment at c #4  - you'll also need this:

Index: gcc/toplev.c
===================================================================
--- gcc/toplev.c    (revision 171158)
+++ gcc/toplev.c    (working copy)
@@ -1338,9 +1338,10 @@ process_options (void)
   if (flag_rename_registers == AUTODETECT_VALUE)
     flag_rename_registers = flag_unroll_loops || flag_peel_loops;

-  if (flag_non_call_exceptions)
+  if (flag_non_call_exceptions 
+      && !global_options_set.x_flag_asynchronous_unwind_tables)
     flag_asynchronous_unwind_tables = 1;
-  if (flag_asynchronous_unwind_tables)
+  if (flag_asynchronous_unwind_tables || flag_non_call_exceptions)
     flag_unwind_tables = 1;

   if (flag_value_profile_transformations)