[Bug 1882497] [NEW] Missing 'cmp' utility makes build take 10 times as long

[Adam Baxter]

Public bug reported:

I have been doing some work cross compiling qemu for Windows using a
minimal Fedora container. Recently I started hitting some timeouts on
the CI service and noticed a build of all targets was going over 1 hour.

It seems like the 'cmp' utility from diffutils is used somewhere in the
process and if it's missing, either a configure or a make gets run way
too many times - I'll try to pull logs from the CI system at some stage
soon.

Could a warning or error be added if cmp is missing?

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1882497

Title:
  Missing 'cmp' utility makes build take 10 times as long

Status in QEMU:
  New

Bug description:
  I have been doing some work cross compiling qemu for Windows using a
  minimal Fedora container. Recently I started hitting some timeouts on
  the CI service and noticed a build of all targets was going over 1
  hour.

  It seems like the 'cmp' utility from diffutils is used somewhere in
  the process and if it's missing, either a configure or a make gets run
  way too many times - I'll try to pull logs from the CI system at some
  stage soon.

  Could a warning or error be added if cmp is missing?

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