diff --git a/doc/modules/ROOT/examples/CMakeLists.txt b/doc/modules/ROOT/examples/CMakeLists.txt
index 12720968..6d1f85b4 100644
--- a/doc/modules/ROOT/examples/CMakeLists.txt
+++ b/doc/modules/ROOT/examples/CMakeLists.txt
@@ -19,25 +19,27 @@ file(GLOB cpp_files "*.cpp")
 
 foreach (cpp ${cpp_files})
     get_filename_component(stem ${cpp} NAME_WE)
-    add_executable(${stem} ${cpp})
-    target_link_libraries(${stem} PRIVATE Boost::openmethod Boost::unit_test_framework)
-    add_test(NAME ${stem} COMMAND ${stem})
-    add_dependencies(tests ${stem})
+    set(test_target "boost_openmethod-${stem}")
+    add_executable(${test_target} ${cpp})
+    target_link_libraries(${test_target} PRIVATE Boost::openmethod Boost::unit_test_framework)
+    add_test(NAME ${test_target} COMMAND ${test_target})
+    add_dependencies(tests ${test_target})
 endforeach()
 
-function(add_step_by_step dir)
+function(boost_openmethod_add_step_by_step dir)
   set(add_test "")
   if(ARGC GREATER 1)
     set(add_test "${ARGV1}")
   else()
     set(add_test "ON")
   endif()
+
   file(GLOB subdirs "${dir}/*")
 
   foreach (subdir ${subdirs})
     string(REGEX REPLACE ".*/" "" subex ${subdir})
     file(GLOB cpp_files "${subdir}/*.cpp")
-    set(target "${dir}_${subex}")
+    set(target "boost_openmethod-${dir}_${subex}")
     add_executable(${target} ${cpp_files})
     target_link_libraries(${target} PRIVATE Boost::openmethod)
     set(output_dir openmethod/${dir}/${subex})
@@ -53,11 +55,11 @@ function(add_step_by_step dir)
   endforeach()
 endfunction()
 
-add_step_by_step(rolex)
-add_step_by_step(ambiguities OFF)
-add_step_by_step(core_api)
-add_step_by_step(custom_rtti)
-add_step_by_step(virtual_ptr_alt)
+boost_openmethod_add_step_by_step(rolex)
+boost_openmethod_add_step_by_step(ambiguities OFF)
+boost_openmethod_add_step_by_step(core_api)
+boost_openmethod_add_step_by_step(custom_rtti)
+boost_openmethod_add_step_by_step(virtual_ptr_alt)
 
 if (NOT WIN32)
   add_subdirectory(shared_libs)
diff --git a/doc/modules/ROOT/examples/shared_libs/CMakeLists.txt b/doc/modules/ROOT/examples/shared_libs/CMakeLists.txt
index f9ac1612..cf379241 100644
--- a/doc/modules/ROOT/examples/shared_libs/CMakeLists.txt
+++ b/doc/modules/ROOT/examples/shared_libs/CMakeLists.txt
@@ -10,40 +10,40 @@ add_compile_definitions(BOOST_OPENMETHOD_ENABLE_RUNTIME_CHECKS)
 # ------------------------------------------------------------------------------
 # static linking
 
-add_library(shared SHARED extensions.cpp)
-target_link_libraries(shared Boost::openmethod)
-set_target_properties(shared PROPERTIES ENABLE_EXPORTS ON)
+add_library(boost_openmethod-shared SHARED extensions.cpp)
+target_link_libraries(boost_openmethod-shared Boost::openmethod)
+set_target_properties(boost_openmethod-shared PROPERTIES ENABLE_EXPORTS ON)
 
-add_executable(static static_main.cpp)
-target_link_libraries(static Boost::openmethod Boost::dll shared)
-add_test(NAME static_shared COMMAND static)
+add_executable(boost_openmethod-static static_main.cpp)
+target_link_libraries(boost_openmethod-static Boost::openmethod Boost::dll boost_openmethod-shared)
+add_test(NAME boost_openmethod-static COMMAND boost_openmethod-static)
 
 # ------------------------------------------------------------------------------
 # dynamic loading, direct virtual_ptrs
 
-add_executable(dynamic dynamic_main.cpp)
-set_target_properties(dynamic PROPERTIES ENABLE_EXPORTS ON)
-target_link_libraries(dynamic Boost::openmethod Boost::dll)
-add_dependencies(dynamic shared)
+add_executable(boost_openmethod-dynamic dynamic_main.cpp)
+set_target_properties(boost_openmethod-dynamic PROPERTIES ENABLE_EXPORTS ON)
+target_link_libraries(boost_openmethod-dynamic Boost::openmethod Boost::dll)
+add_dependencies(boost_openmethod-dynamic boost_openmethod-shared)
 if (NOT WIN32)
-    add_test(NAME dynamic_shared COMMAND dynamic)
+    add_test(NAME boost_openmethod-dynamic COMMAND boost_openmethod-dynamic)
 endif()
 
 # ------------------------------------------------------------------------------
 # dynamic loading, indirect virtual_ptrs
 
-add_library(indirect_shared SHARED indirect_extensions.cpp)
+add_library(boost_openmethod-indirect_shared SHARED indirect_extensions.cpp)
 target_compile_definitions(
-    indirect_shared PUBLIC BOOST_OPENMETHOD_DEFAULT_REGISTRY=indirect_registry)
-target_link_libraries(indirect_shared PRIVATE Boost::openmethod Boost::dll)
-set_target_properties(indirect_shared PROPERTIES ENABLE_EXPORTS ON)
+    boost_openmethod-indirect_shared PUBLIC BOOST_OPENMETHOD_DEFAULT_REGISTRY=indirect_registry)
+target_link_libraries(boost_openmethod-indirect_shared PRIVATE Boost::openmethod Boost::dll)
+set_target_properties(boost_openmethod-indirect_shared PROPERTIES ENABLE_EXPORTS ON)
 
-add_executable(indirect indirect_main.cpp)
+add_executable(boost_openmethod-indirect indirect_main.cpp)
 target_compile_definitions(
-    indirect PUBLIC BOOST_OPENMETHOD_DEFAULT_REGISTRY=indirect_registry)
-set_target_properties(indirect PROPERTIES ENABLE_EXPORTS ON)
-target_link_libraries(indirect PRIVATE Boost::openmethod Boost::dll)
-add_dependencies(indirect indirect_shared)
+    boost_openmethod-indirect PUBLIC BOOST_OPENMETHOD_DEFAULT_REGISTRY=indirect_registry)
+set_target_properties(boost_openmethod-indirect PROPERTIES ENABLE_EXPORTS ON)
+target_link_libraries(boost_openmethod-indirect PRIVATE Boost::openmethod Boost::dll)
+add_dependencies(boost_openmethod-indirect boost_openmethod-indirect_shared)
 if (NOT WIN32)
-  add_test(NAME indirect_shared COMMAND indirect)
+  add_test(NAME boost_openmethod-indirect COMMAND boost_openmethod-indirect)
 endif()
diff --git a/include/boost/openmethod/policies/fast_perfect_hash.hpp b/include/boost/openmethod/policies/fast_perfect_hash.hpp
index e0f282d0..6015cf73 100644
--- a/include/boost/openmethod/policies/fast_perfect_hash.hpp
+++ b/include/boost/openmethod/policies/fast_perfect_hash.hpp
@@ -176,6 +176,7 @@ void fast_perfect_hash::fn<Registry>::initialize(
     using namespace policies;
 
     const auto N = std::distance(first, last);
+    (void)opts;
 
     if constexpr (
         detail::has_option<trace, Options...> && Registry::has_output) {
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 78d38876..88f4546f 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -57,24 +57,26 @@ file(GLOB test_cpp_files "test_*.cpp")
 
 foreach(test_cpp ${test_cpp_files})
     get_filename_component(test ${test_cpp} NAME_WE)
-    add_executable(${test} EXCLUDE_FROM_ALL ${test_cpp})
-    target_link_libraries(${test} PRIVATE Boost::openmethod Boost::unit_test_framework)
-    add_test(NAME ${test} COMMAND ${test})
-    add_dependencies(tests ${test})
+    set(test_target "boost_openmethod-${test}")
+    add_executable(${test_target} EXCLUDE_FROM_ALL ${test_cpp})
+    target_link_libraries(${test_target} PRIVATE Boost::openmethod Boost::unit_test_framework)
+    add_test(NAME ${test_target} COMMAND ${test_target})
+    add_dependencies(tests ${test_target})
 endforeach()
 
-add_executable(test_mix_release_debug EXCLUDE_FROM_ALL mix_release_debug/main.cpp mix_release_debug/lib.cpp)
-target_link_libraries(test_mix_release_debug PRIVATE Boost::openmethod Boost::unit_test_framework)
-add_test(NAME test_mix_release_debug COMMAND test_mix_release_debug)
-add_dependencies(tests test_mix_release_debug)
+add_executable(boost_openmethod-test_mix_release_debug EXCLUDE_FROM_ALL mix_release_debug/main.cpp mix_release_debug/lib.cpp)
+target_link_libraries(boost_openmethod-test_mix_release_debug PRIVATE Boost::openmethod Boost::unit_test_framework)
+add_test(NAME boost_openmethod-test_mix_release_debug COMMAND boost_openmethod-test_mix_release_debug)
+add_dependencies(tests boost_openmethod-test_mix_release_debug)
 
 function(openmethod_compile_fail_test testname fail_regex)
-  add_library("compile-fail-${testname}" STATIC EXCLUDE_FROM_ALL "${testname}.cpp")
-  target_link_libraries("compile-fail-${testname}" PRIVATE Boost::openmethod)
-  add_test(
-    NAME "openmethod-${testname}"
-    COMMAND "${CMAKE_COMMAND}" --build ${CMAKE_BINARY_DIR} --target "compile-fail-${testname}" --config $<CONFIG>)
-  set_property(TEST "openmethod-${testname}" PROPERTY PASS_REGULAR_EXPRESSION "${fail_regex}")
+    set(test_target "boost_openmethod-${testname}")
+    add_library(${test_target} STATIC EXCLUDE_FROM_ALL "${testname}.cpp")
+    target_link_libraries(${test_target} PRIVATE Boost::openmethod)
+    add_test(
+        NAME "${test_target}"
+        COMMAND "${CMAKE_COMMAND}" --build ${CMAKE_BINARY_DIR} --target "${test_target}" --config $<CONFIG>)
+    set_property(TEST "${test_target}" PROPERTY PASS_REGULAR_EXPRESSION "${fail_regex}")
 endfunction()
 
 openmethod_compile_fail_test(
diff --git a/test/Jamfile b/test/Jamfile
index 5eecf776..53aa7b22 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -25,13 +25,13 @@ project
 
     <toolset>msvc:<warnings-as-errors>on
     <toolset>gcc:<warnings-as-errors>on
-    <toolset>clang,<os>!NT:<warnings-as-errors>on
-    # !NT because it causes errors when builting unit-test
+    <toolset>clang,<target-os>linux:<warnings-as-errors>on
+    <toolset>clang,<target-os>darwin:<warnings-as-errors>on
   ;
 
 alias unit_test_framework
     : # sources
-        /boost/test//boost_unit_test_framework
+        /boost/test//boost_unit_test_framework/<warnings>off
     ;
 
 for local src in [ glob test_*.cpp ]