5 files changed, 20 insertions, 39 deletions
diff --git a/Help/guide/tutorial/Step9/CMakeLists.txt b/Help/guide/tutorial/Step9/CMakeLists.txt
index b13a662..d26a90c 100644
--- a/Help/guide/tutorial/Step9/CMakeLists.txt
+++ b/Help/guide/tutorial/Step9/CMakeLists.txt
@@ -1,11 +1,20 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.15)
 
 # set the project name and version
 project(Tutorial VERSION 1.0)
 
 # specify the C++ standard
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED True)
+add_library(tutorial_compiler_flags INTERFACE)
+target_compile_features(tutorial_compiler_flags INTERFACE cxx_std_11)
+
+# add compiler warning flags just when building this project via
+# the BUILD_INTERFACE genex
+set(gcc_like_cxx "$<COMPILE_LANG_AND_ID:CXX,ARMClang,AppleClang,Clang,GNU,LCC>")
+set(msvc_cxx "$<COMPILE_LANG_AND_ID:CXX,MSVC>")
+target_compile_options(tutorial_compiler_flags INTERFACE
+  "$<${gcc_like_cxx}:$<BUILD_INTERFACE:-Wall;-Wextra;-Wshadow;-Wformat=2;-Wunused>>"
+  "$<${msvc_cxx}:$<BUILD_INTERFACE:-W3>>"
+)
 
 # should we use our own math functions
 option(USE_MYMATH "Use tutorial provided math implementation" ON)
@@ -22,7 +31,7 @@ endif()
 
 # add the executable
 add_executable(Tutorial tutorial.cxx)
-target_link_libraries(Tutorial PUBLIC ${EXTRA_LIBS})
+target_link_libraries(Tutorial PUBLIC ${EXTRA_LIBS} tutorial_compiler_flags)
 
 # add the binary tree to the search path for include files
 # so that we will find TutorialConfig.h
@@ -64,11 +73,3 @@ do_test(Tutorial 7 "7 is 2.645")
 do_test(Tutorial 25 "25 is 5")
 do_test(Tutorial -25 "-25 is (-nan|nan|0)")
 do_test(Tutorial 0.0001 "0.0001 is 0.01")
-
-# setup installer
-include(InstallRequiredSystemLibraries)
-set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/License.txt")
-set(CPACK_PACKAGE_VERSION_MAJOR "${Tutorial_VERSION_MAJOR}")
-set(CPACK_PACKAGE_VERSION_MINOR "${Tutorial_VERSION_MINOR}")
-set(CPACK_SOURCE_GENERATOR "TGZ")
-include(CPack)
diff --git a/Help/guide/tutorial/Step9/License.txt b/Help/guide/tutorial/Step9/License.txt
index c62d00b..85760e5 100644
--- a/Help/guide/tutorial/Step9/License.txt
+++ b/Help/guide/tutorial/Step9/License.txt
@@ -1,2 +1,2 @@
 This is the open source License.txt file introduced in
-CMake/Tutorial/Step7...
+CMake/Tutorial/Step9...
diff --git a/Help/guide/tutorial/Step9/MathFunctions/CMakeLists.txt b/Help/guide/tutorial/Step9/MathFunctions/CMakeLists.txt
index 50f0701..8a08157 100644
--- a/Help/guide/tutorial/Step9/MathFunctions/CMakeLists.txt
+++ b/Help/guide/tutorial/Step9/MathFunctions/CMakeLists.txt
@@ -16,12 +16,17 @@ add_library(MathFunctions
 
 # state that anybody linking to us needs to include the current source dir
 # to find MathFunctions.h, while we don't.
+# state that we depend on Tutorial_BINARY_DIR but consumers don't, as the
+# TutorialConfig.h include is an implementation detail
 # state that we depend on our binary dir to find Table.h
 target_include_directories(MathFunctions
           INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
           PRIVATE   ${CMAKE_CURRENT_BINARY_DIR}
           )
 
+target_link_libraries(MathFunctions tutorial_compiler_flags)
+
 # install rules
-install(TARGETS MathFunctions DESTINATION lib)
+set(installable_libs MathFunctions tutorial_compiler_flags)
+install(TARGETS ${installable_libs} DESTINATION lib)
 install(FILES MathFunctions.h DESTINATION include)
diff --git a/Help/guide/tutorial/Step9/MathFunctions/MathFunctions.cxx b/Help/guide/tutorial/Step9/MathFunctions/MathFunctions.cxx
deleted file mode 100644
index 0145300..0000000
--- a/Help/guide/tutorial/Step9/MathFunctions/MathFunctions.cxx
+++ /dev/null
@@ -1,19 +0,0 @@
-
-#include "MathFunctions.h"
-
-#include <cmath>
-
-#ifdef USE_MYMATH
-#  include "mysqrt.h"
-#endif
-
-namespace mathfunctions {
-double sqrt(double x)
-{
-#ifdef USE_MYMATH
-  return detail::mysqrt(x);
-#else
-  return std::sqrt(x);
-#endif
-}
-}
diff --git a/Help/guide/tutorial/Step9/MathFunctions/mysqrt.h b/Help/guide/tutorial/Step9/MathFunctions/mysqrt.h
deleted file mode 100644
index e1c42ef..0000000
--- a/Help/guide/tutorial/Step9/MathFunctions/mysqrt.h
+++ /dev/null
@@ -1,6 +0,0 @@
-
-namespace mathfunctions {
-namespace detail {
-double mysqrt(double x);
-}
-}