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	system.h, coretypes.h and tm.h.
	(options.o): Update dependencies accordingly.
	* optc-gen.awk: Allow header_name to be a list of filenames.
	Handle the "Condition" flag.
	* opts.h (CL_DISABLED): New flag.
	* opts.c (handle_option): Print an error for CL_DISABLED options.
	* doc/options.texi: Document the "Condition" option flag.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99774 138bc75d-0d04-0410-961f-82ee72b054a4