Hi,
I have a Makefile that looks something like this:
all: go
foo = something
go : go.c $(foo)
gcc -o go go.c
$(foo):
@echo foo
My question is, if foo is empty, ie:
foo =
which means that the $(foo) rule has no target (?), is the resulting
Makefile valid and portable? It seems to work OK with GNU make, but I
am not sure if I can rely on that.
The actual Makefile is generated by autoconf, and $foo is only
non-empty on certain platforms. I am wondering if that is OK, or if I
need to set $foo to some non-empty, dummy value.
TIA for any help.
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