Configure option index (ECL Manual)

	Index Entry	Section

-
	`--enable-c99complex [auto]`:	Numbers - Number C types
	`--enable-shared [YES\|no]`:	Native FASL
	`--enable-small-cons [YES\|no]`:	Objects representation
	`--enable-threads [yes\|no\|AUTO]`:	Native threads
	`--enable-unicode [32\|16\|no]`:	Characters - Unicode vs. POSIX locale
	`--enable-unicode [32\|16\|no]`:	Constructing objects
	`--with-dffi [system\|included\|AUTO\|no]`:	Two kinds of FFI
	`--with-fpe [YES\|no]`:	Numbers - Floating point exceptions
	`--with-ieee-fp [YES\|no]`:	Numbers - Floating point exceptions
	`--with-libffi-prefix=path`:	Two kinds of FFI