More thought.
All these confusions come from the inability of commands to generate output
files separatedly. This is perfect legal dependency tree because each
input/output relationship is 1:1
+-> arith.c --+
arith.y -+ +-> arith.o
+-> arith.h --+
If yacc can generate only either .c / .h, like
yacc --src arith.y
yacc --hdr arith.y
We can write the rule straight.
What we need is to have wrapper commands which extracts one of outputs. If
a command generates 3 outputs from 4 inputs, we need 3 wrappers.
Masao
--
Masao Uebayashi / Tombi Inc. / Tel: +81-90-9141-4635
