options.texi: Document that Var and Init are required if CPP is given.

gcc/ChangeLog:

2014-09-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* doc/options.texi: Document that Var and Init are required if CPP
	is given.
	* optc-gen.awk: Require Var and Init if CPP is given.
	* common.opt (Wpedantic): Use Init.

libcpp/ChangeLog:

2014-09-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* macro.c (replace_args): Use cpp_pedwarning, cpp_warning and
	CPP_W flags.
	* include/cpplib.h: Add CPP_W_C90_C99_COMPAT and CPP_W_PEDANTIC.
	* init.c (cpp_create_reader): Do not init to -1 here.
	* expr.c (num_binary_op): Use cpp_pedwarning.

gcc/c-family/ChangeLog:

2014-09-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* c.opt (Wc90-c99-compat,Wc++-compat,Wcomment,Wendif-labels,
	Winvalid-pch,Wlong-long,Wmissing-include-dirs,Wmultichar,Wpedantic,
	(Wdate-time,Wtraditional,Wundef,Wvariadic-macros): Add CPP, Var
	and Init.
	* c-opts.c (c_common_handle_option): Do not handle here.
	(sanitize_cpp_opts): Likewise.
	* c-common.c (struct reason_option_codes_t): Handle
	CPP_W_C90_C99_COMPAT and CPP_W_PEDANTIC.

gcc/testsuite/ChangeLog:

2014-09-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* gcc.dg/cpp/endif-pedantic2.c: More general options do not
	override specific ones, but specific ones do.

From-SVN: r214904