CODEWITHSUNDEEP
makefiledesign-patterns
blueyed
blueyed

Reputation: 27858

Generic (non-file) pattern matching in Makefile

Is it possible to have wildcard targets for non-filenames, like:

build-%: pull-% build-%.stamp
pull-%:
  cd $* ; git log HEAD..origin/master | grep -q . && ( git pull ; $(RM) ../build-$*.stamp ) || true
build-%.stamp:
  cd $* ; ant
  touch $@

The idea is to call make build-foo, which will only call the build when there are new upstream changes (which get pulled).

However, the %-pattern matching appears to apply to filenames only, even when defining the expanded form ("build-foo") in .PHONY.

Do I have to use templates, as used in Makefile generic pattern rule -- xyzzy-en_US.ext2 from xyzzy.ext0 ?

Upvotes: 1

Views: 494

Answers (1)

Beta
Beta

Reputation: 99124

Ah! Put a semicolon after the build-% rule.

(I didn't notice this problem because I put a command in the rule: @echo $@.)

Upvotes: 2

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