[Omake] defining a function

[Sam Steingold]

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I have this in my OMakefile:

my_save(file) =
  $(if $(file-exists $(file)), $(rename $(file) $(file).save))

my_diff(file) =
  save=$(file).save
  if $(file-exists $(save))
    $(shell diff -u $(save) $(file))

foo bar baz : OMakefile
  $(foreach my_save, $@)
  $< -o1 foo -o2 bar -o3 baz
  $(foreach my_diff, $@)

i.e., I have a generator executable and I want to see what changes when
it is rerun

alas, omake does not like the above, the error message is:

*** omake error:
   File OMakefile: line 9, characters 1-24
   not a function

line 9 is "foo bar baz : OMakefile".

so, what am I doing wrong?

thanks!

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