CMake/Help/guide/tutorial/Step4/CMakeLists.txt

# TODO 1: Update the minimum required version to 3.15

cmake_minimum_required(VERSION 3.10)

# set the project name and version
project(Tutorial VERSION 1.0)

# specify the C++ standard
add_library(tutorial_compiler_flags INTERFACE)
target_compile_features(tutorial_compiler_flags INTERFACE cxx_std_11)

# TODO 2: Create helper variables to determine which compiler we are using:
# * Create a new variable gcc_like_cxx that is true if we are using CXX and
#   any of the following compilers: ARMClang, AppleClang, Clang, GNU, LCC
# * Create a new variable msvc_cxx that is true if we are using CXX and MSVC
# Hint: Use set() and COMPILE_LANG_AND_ID

# TODO 3: Add warning flag compile options to the interface library
# tutorial_compiler_flags.
# * For gcc_like_cxx, add flags -Wall;-Wextra;-Wshadow;-Wformat=2;-Wunused
# * For msvc_cxx, add flags -W3
# Hint: Use target_compile_options()

# TODO 4: With nested generator expressions, only use the flags for the
# build-tree
# Hint: Use BUILD_INTERFACE

# configure a header file to pass some of the CMake settings
# to the source code
configure_file(TutorialConfig.h.in TutorialConfig.h)

# add the MathFunctions library
add_subdirectory(MathFunctions)

# add the executable
add_executable(Tutorial tutorial.cxx)

target_link_libraries(Tutorial PUBLIC MathFunctions tutorial_compiler_flags)

# add the binary tree to the search path for include files
# so that we will find TutorialConfig.h
target_include_directories(Tutorial PUBLIC
                           "${PROJECT_BINARY_DIR}"
                           )