For each binary, we gives the files it reads, and the files it writes.
The files might be stdin / stdout; in that case, we take the typical name
given in README. Log files are not mentionned.


polyselect:
	reads:
		input number
	writes:
		.poly

makefb:
	reads:
		.poly
	writes:
		.roots

freerels:
	reads:
		.poly
		.roots
	writes:
		.rels (this will be part of the final .rels)

sieve (a.k.a. las):
	reads:
		.poly
		.roots
	writes:
		.rels

check_rels:
	reads:
		.poly
		.rels
	writes:
		.rels (concatenated with output of freerels)

dup1 / dup2:
        reads:
                .rels
        writes:
                .nodup/i/*.rels

purge:
	reads:
		.poly
		.nodup/i/*.rels
	writes:
		.purged

merge / replay:
	reads:
		.purged
	writes:
		.small.bin
		.small.rw.bin
		.small.cw.bin
		.index
		.merge.his (not used thereafter)

linalg (a.k.a. bwc.pl):
	reads:
		.small.bin
		.small.rw.bin
		.small.cw.bin
	writes:
		.K.i

characters:
	reads:
		.poly
		.purged
		.index
		.K.i
	writes:
		.ker

sqrt:
	reads:
		.poly
		.purged
		.index
		.ker
	writes:
                .dep.i
		.dep.rat.i
		.dep.alg.i