Reuse common add_cxx_sample function for Sat Runner

Add an optional parameter to leave out the example from testing.

cmake/cpp.cmake

@@ -459,7 +459,8 @@ function(add_cxx_sample FILE_NAME)
 
   install(TARGETS ${SAMPLE_NAME})
 
-  if(BUILD_TESTING)
+  set(SKIP_TEST (${ARGC} GREATER 1) AND ${ARG1})
+  if(BUILD_TESTING AND NOT SKIP_TEST)
     add_test(NAME cxx_${COMPONENT_NAME}_${SAMPLE_NAME} COMMAND ${SAMPLE_NAME})
   endif()
   message(STATUS "Configuring sample ${FILE_NAME}: ...DONE")
@@ -496,8 +497,9 @@ function(add_cxx_example FILE_NAME)
 
   install(TARGETS ${EXAMPLE_NAME})
 
-  if(BUILD_TESTING)
-    add_test(NAME cxx_${COMPONENT_NAME}_${EXAMPLE_NAME} COMMAND ${EXAMPLE_NAME})
+  set(SKIP_TEST (${ARGC} GREATER 1) AND ${ARG1})
+  if(BUILD_TESTING AND NOT SKIP_TEST)
+      add_test(NAME cxx_${COMPONENT_NAME}_${EXAMPLE_NAME} COMMAND ${EXAMPLE_NAME})
   endif()
   message(STATUS "Configuring example ${FILE_NAME}: ...DONE")
 endfunction()

ortools/sat/CMakeLists.txt

@@ -39,20 +39,7 @@ target_link_libraries(${NAME} PRIVATE
   ${PROJECT_NAME}::proto)
 #add_library(${PROJECT_NAME}::sat ALIAS ${NAME})
 
-# Sat Runner
-include(GNUInstallDirs)
-if(APPLE)
-  set(CMAKE_INSTALL_RPATH
-    "@loader_path/../${CMAKE_INSTALL_LIBDIR};@loader_path")
-elseif(UNIX)
-  set(CMAKE_INSTALL_RPATH
-    "$ORIGIN/../${CMAKE_INSTALL_LIBDIR}:$ORIGIN/../lib64:$ORIGIN/../lib:$ORIGIN")
-endif()
-
-add_executable(sat_runner)
-target_sources(sat_runner PRIVATE "sat_runner.cc")
-target_include_directories(sat_runner PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_compile_features(sat_runner PRIVATE cxx_std_17)
-target_link_libraries(sat_runner PRIVATE ${PROJECT_NAMESPACE}::ortools)
+include(cpp)
 
-install(TARGETS sat_runner)
+# Sat Runner
+add_cxx_sample("${CMAKE_CURRENT_LIST_DIR}/sat_runner.cc" TRUE)