debian/changelog

+libthread-pool (2.0.1-4) unstable; urgency=medium
+
+  * Test-Depends: build-essential
+
+ -- Andreas Tille <tille@debian.org>  Tue, 19 Nov 2019 21:52:39 +0100
+
 libthread-pool (2.0.1-3) unstable; urgency=medium
 
   * Test-Depends: cmake

debian/tests/control

 Tests: run-unit-test
-Depends: @, googletest, cmake
+Depends: @, googletest, cmake, build-essential
 Restrictions: allow-stderr