* defaults.h (MULTIPLE_SYMBOL_SPACES): Provide default.
	* config/arm/pecoff.h, config/i386/beos-elf.h
	* config/i386/cygming.h, config/i386/i386-interix.h:
	Define MULTIPLE_SYMBOL_SPACES to 1, not nothing.  Remove
	comment cloned from manual.
	* doc/tm.texi: Update description of MULTIPLE_SYMBOL_SPACES.
cp:
	* decl2.c (import_export_class)
	* lex.c (handle_pragma_interface):
	Test MULTIPLE_SYMBOL_SPACES with if, not #ifdef.

From-SVN: r87243