diff --git a/src/external/LF_GL/CMakeLists.txt b/src/external/LF_GL/CMakeLists.txt
index d2f078d13..7480f89dd 100644
--- a/src/external/LF_GL/CMakeLists.txt
+++ b/src/external/LF_GL/CMakeLists.txt
@@ -44,7 +44,7 @@ add_executable(lf_gl
   PLGKT_LF.cpp
 )
 set_property(TARGET lf_gl PROPERTY CXX_STANDARD 20)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set_property(TARGET lf_gl PROPERTY CXX_STANDARD_REQUIRED ON)
 target_include_directories(lf_gl 
   BEFORE PRIVATE 
     $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}>
diff --git a/src/tests/rgeHandler/CMakeLists.txt b/src/tests/rgeHandler/CMakeLists.txt
index 02caf09a4..ef0ce7e7e 100644
--- a/src/tests/rgeHandler/CMakeLists.txt
+++ b/src/tests/rgeHandler/CMakeLists.txt
@@ -3,14 +3,11 @@ cmake_minimum_required(VERSION 3.17)
 
 project(rgeHandlerTest VERSION 0.9 LANGUAGES CXX)
 
+include(GNUInstallDirs)
+
 #--- check for ROOT -----------------------------------------------------------
 find_package(ROOT 6.18 REQUIRED COMPONENTS Gui MathMore Minuit2 XMLParser)
 if (ROOT_mathmore_FOUND)
-  execute_process(COMMAND root-config --bindir OUTPUT_VARIABLE ROOT_BINDIR)
-  string(STRIP ${ROOT_BINDIR} ROOT_BINDIR)
-  execute_process(COMMAND root-config --version OUTPUT_VARIABLE ROOT_VERSION)
-  string(STRIP ${ROOT_VERSION} ROOT_VERSION)
-  message("-- Found ROOT: ${ROOT_BINDIR} (found version: ${ROOT_VERSION})")
   #---Define useful ROOT functions and macros (e.g. ROOT_GENERATE_DICTIONARY)
   include(${ROOT_USE_FILE})
 endif (ROOT_mathmore_FOUND)
@@ -33,8 +30,8 @@ target_link_libraries(rgeHandlerTest ${ROOT_LIBRARIES} PRgeHandler)
 install(
   TARGETS
     rgeHandlerTest
-  RUNTIME DESTINATION 
-    bin
+  RUNTIME DESTINATION
+    ${CMAKE_INSTALL_BINDIR}
 )
 
 
diff --git a/src/tests/spirit/CMakeLists.txt b/src/tests/spirit/CMakeLists.txt
index c7f91432c..e5df2766e 100644
--- a/src/tests/spirit/CMakeLists.txt
+++ b/src/tests/spirit/CMakeLists.txt
@@ -3,6 +3,8 @@ cmake_minimum_required(VERSION 3.17)
 
 project(spirit_fcn_test VERSION 0.1 LANGUAGES CXX)
 
+include(GNUInstallDirs)
+
 #--- set a default build type if none was specified ---------------------------
 set(default_build_type "Debug")
 
@@ -21,11 +23,6 @@ find_package(PkgConfig REQUIRED)
 #--- check for ROOT -----------------------------------------------------------
 find_package(ROOT 6.18 REQUIRED COMPONENTS Gui MathMore Minuit2 XMLParser)
 if (ROOT_mathmore_FOUND)
-  execute_process(COMMAND root-config --bindir OUTPUT_VARIABLE ROOT_BINDIR)
-  string(STRIP ${ROOT_BINDIR} ROOT_BINDIR)
-  execute_process(COMMAND root-config --version OUTPUT_VARIABLE ROOT_VERSION)
-  string(STRIP ${ROOT_VERSION} ROOT_VERSION)
-  message("-- Found ROOT: ${ROOT_BINDIR} (found version: ${ROOT_VERSION})")
   #---Define useful ROOT functions and macros (e.g. ROOT_GENERATE_DICTIONARY)
   include(${ROOT_USE_FILE})
 endif (ROOT_mathmore_FOUND)
@@ -33,16 +30,11 @@ endif (ROOT_mathmore_FOUND)
 #--- check for boost ----------------------------------------------------------
 find_package(Boost QUIET)
 if (Boost_VERSION VERSION_GREATER_EQUAL "1.89")
-  find_package(Boost REQUIRED
-    COMPONENTS
-      filesystem
-  )
+  find_package(Boost REQUIRED COMPONENTS filesystem)
+  set(BOOST_LINK_LIBS Boost::filesystem)
 else (Boost_VERSION VERSION_GREATER_EQUAL "1.89")
-  find_package(Boost REQUIRED
-    COMPONENTS
-      system
-      filesystem
-  )
+  find_package(Boost REQUIRED COMPONENTS system filesystem)
+  set(BOOST_LINK_LIBS Boost::filesystem Boost::system)
 endif (Boost_VERSION VERSION_GREATER_EQUAL "1.89")
 
 #--- create executable --------------------------------------------------------
@@ -61,7 +53,7 @@ target_include_directories(spirit_fcn_test
 #--- link libraries -----------------------------------------------------------
 target_link_libraries(spirit_fcn_test
   ${ROOT_LIBRARIES}
-  ${Boost_LIBRARIES}
+  ${BOOST_LINK_LIBS}
 )
 
 #--- installation info --------------------------------------------------------
@@ -69,5 +61,5 @@ install(
   TARGETS
     spirit_fcn_test
   RUNTIME DESTINATION
-    bin
+    ${CMAKE_INSTALL_BINDIR}
 )
diff --git a/src/tests/vortex-film/CMakeLists.txt b/src/tests/vortex-film/CMakeLists.txt
index 3d5544806..903bbb55e 100644
--- a/src/tests/vortex-film/CMakeLists.txt
+++ b/src/tests/vortex-film/CMakeLists.txt
@@ -62,11 +62,6 @@ find_package(Git REQUIRED)
 #--- check for ROOT -----------------------------------------------------------
 find_package(ROOT 6.18 REQUIRED COMPONENTS Gui MathMore Minuit2 XMLParser)
 if (ROOT_mathmore_FOUND)
-  execute_process(COMMAND root-config --bindir OUTPUT_VARIABLE ROOT_BINDIR)
-  string(STRIP ${ROOT_BINDIR} ROOT_BINDIR)
-  execute_process(COMMAND root-config --version OUTPUT_VARIABLE ROOT_VERSION)
-  string(STRIP ${ROOT_VERSION} ROOT_VERSION)
-  message("-- Found ROOT: ${ROOT_BINDIR} (found version: ${ROOT_VERSION})")
   #---Define useful ROOT functions and macros (e.g. ROOT_GENERATE_DICTIONARY)
   include(${ROOT_USE_FILE})
 endif (ROOT_mathmore_FOUND)