Only allow tprof on elixir >= 1.17 - both for our tests and our suers

lib/benchee/profile.ex

@@ -23,7 +23,13 @@ defmodule Benchee.Profile do
   alias Benchee.Suite
 
   @default_profiler :eprof
-  @builtin_profilers [:cprof, :eprof, :fprof, :tprof]
+  @builtin_profilers [:cprof, :eprof, :fprof]
+  # https://hexdocs.pm/mix/1.17.0/Mix.Tasks.Profile.Tprof.html
+  # Was introduced in 1.17.0, it also requires OTP 27 but I trust it to error fine for
+  # that case itself
+  if Version.match?(System.version(), ">= 1.17.0") do
+    @builtin_profilers [:tprof | @builtin_profilers]
+  end
   # we run the function a bunch already, no need for further warmup
   @default_profiler_opts [warmup: false]
 

test/benchee/profile_test.exs

@@ -89,8 +89,7 @@ defmodule Benchee.ProfileTest do
     assert_receive {:profiling, ^name, ^profiler}
   end
 
-  @profilers Profile.builtin_profilers()
-  for profiler <- @profilers do
+  for profiler <- Profile.builtin_profilers() do
     @profiler profiler
     # can't say warmup as some profilers will have it in the profile messing with the test
     describe "warming up behavior with #{@profiler}" do