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I've got one file including

(eval-when-compile (require 'cl))

Some other files require this file, and also need to have cl required when they are byte-compiled. This is not happening - this first file does not appear to know it is getting byte compiled, when it is required by other files that are getting byte compiled. Is there a way to craft an eval-when-compile statement in this first file, such that files that require it to also require cl when they are getting byte compiled?

EDIT: Context of the question:

When I download https://github.com/idris-hackers/idris-mode and run make build to byte compile, I get warnings in two separate files, idris-prover.el and idris-repl.el. Both of these files require inferior-idris.el which contains the line (eval-when-compile (require 'cl)). If I add that line to the two files, the warnings disappear. I am wondering if that would be the best solution to fix the warnings. Warnings include:

idris-prover.el:224:44:Warning: `:ok' called as a function
idris-prover.el:239:19:Warning: `:error' called as a function
idris-prover.el:253:67:Warning: `t' called as a function
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  • Just put the same thing in each of those files. (This file should anyway not need to know the details of just what each of its required files needs.)
    – Drew
    Dec 16 '17 at 2:20
  • Normally when A requires B which requires C and so on, everything defined by C is visible to A. Suppose it's part of B's interface that C is required. Is there a way for A to require B, such that B's eval-when-compile statements are processed just like A's are?
    – jcarpenter2
    Dec 16 '17 at 5:09
  • 1. No, there's no predefined way to do that, as far as I know. (But you can code anything computable using Lisp. ;-) ) 2. This has nothing to do with visibility or interfaces - your "normally" doesn't apply here.
    – Drew
    Dec 16 '17 at 5:40
  • I do not understand why my "normally" doesn't apply. Isn't it the case that if C contains (setq hello t), B contains (require C), and A contains (require B), then for succeeding lines in A, hello will be defined as t?
    – jcarpenter2
    Dec 16 '17 at 5:53
  • If A is being byte-compiled, why should eval-when-compile statements not be executed inside the packages that it requires?
    – jcarpenter2
    Dec 16 '17 at 5:54
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Those warnings indicate actual bugs (from the warnings, I'd guess that the code uses cl.el's case macro) which make the resulting byte-code incorrect.

(eval-wnen-compile (require 'B)) applies only to the given file. Every file which uses cl.el's macros should have such a line (tho I'd argue that it should first be changed to use cl-lib instead, of course).

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