Re: The explanation of order-only prerequisites is not clear

[ali hagigat]

I have copied one line of the make manual:
-----------------------------------------------------------------------------
"Occasionally, however, you have a situation where you want to impose
a specific ordering on the rules to be invoked without forcing the
target to be updated if one of those rules is executed. In that case,
you want to define order-only prerequisites. "
------------------------------------------------------------------------------
Now Lets take a look at the following example:
target1:  | di1
        @echo "inside target1"
        @touch target1
di1:
        @echo "inside di1"

If target1 does not exist, even the order-only prerequisite, di1, will
force target1 to be updated!