Follow-up Comment #5, bug #38420 (project make):
Paul,
I'm using `realpath` for defensive coding purposes. I'm using a pattern
rule of the form:
%.so :
$(if $(realpath $(filter %.o,${^})),,$(warning No dependencies specified for
${@})@false)
recipe goes here
... where the dependencies are specified elsewhere. Three basic things
[can/should] trigger this:
* Mis-spelled library names
* Forgetting to specify dependencies
* The dependency's recipe may be screwed up but may not cause the build to
fail immediately; consequently the file may not actually exist.
$(shell) would work; but I've managed to cut out all uses of $(shell) inside
recipes, which has improved the build times significantly. Given the choice,
it sounds like a modified version of gmake would be preferable.
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