Configure GDB with --enable-tui
Configure GDB with --enable-tui

The --enable-tui configure switch will make the GDB build insist on
finding a compatible curses library, rather than silently configuring
out the --tui functionality if one is not found.  This should ensure
that bots break quickly if the required dependencies go missing again.

No curses library is available on Windows yet, so we don't use
--enable-tui there.

BUG= https://code.google.com/p/chromium/issues/detail?id=391170
TEST= toolchain trybots
R=bradnelson@google.com, dyen@chromium.org, bradnelson@chromium.org

Review URL: https://codereview.chromium.org/451143002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@13605 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client