Thanks Ken for the feedback. A clarification:
At 11/18/2005 02:17 PM, Ken Smith wrote:
Consider this expansion of your example.
target1: prereq1 prereq2
touch $@
prereq1:
sleep 5
touch $@
prereq2:
touch $@
If you run gmake -j2, prereq2 will be created before prereq1. If you
run gmake without parallelization, prereq1 will be created before
prereq2. However, you can employ an order-only prerequisite to ensure
that prereq1 is completed before prereq2 begins even for parallel builds
by adding the following to the above expanded example.
prereq2: | prereq1
Does the following work to support parallel builds (without above the
sleep's and touch's):
<Makefile>
target1: prereq1 prereq2
prereq2: | prereq1
</Makefile
?
-Matt
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