2012-05-17  Manuel López-Ibáñez  <manu@gcc.gnu.org>

c-family/
	* c.opt (--pedantic-errors,-pedantic-errors): Do not handle here.
	* c-opts.c (c_common_handle_option): Do not handle explicitly
	Wreturn-type, Wwrite-strings, warn_ecpp, and -pedantic-errors.
gcc/
	* opts.c (common_handle_option): -pedantic-errors enables -Wpedantic.
	(enable_warning_as_error): Do not special case Wuninitialized.
	* optc-gen.awk: Add sanity checks.

From-SVN: r187628