CMakeLists.txt

#
# cmake file for simple programs that are not linked with any library
#
SET (THE_PROJECT "sg")
#
CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
PROJECT(${THE_PROJECT})

################################################################################
#### settings for clang 9.0.0
SET (CMAKE_CXX_COMPILER "/clang_9.0.0/bin/clang++")
#SET (CMAKE_CXX_STANDARD 17)
SET (CMAKE_INCLUDE_PATH "-I/clang_9.0.0/include/c++/v1 -I." )
################################################################################
##
## for debugging add -pg and replace -Ofast with -O0: -pg -O0
##
SET (CLANG_CXX_FLAGS "${CMAKE_INCLUDE_PATH} -std=c++17 -Ofast -ffast-math -pthread -pedantic -pedantic-errors -Wall -Weffc++ -Wextra -Wfatal-errors -Weverything -Wno-c++98-compat -Wno-c++98-compat-pedantic -fno-assume-sane-operator-new")
####SET (CLANG_CXX_FLAGS "${CLANG_CXX_FLAGS} -fsanitize=undefined")
SET (CMAKE_CXX_FLAGS "${CLANG_CXX_FLAGS} -mtune=native -march=native -m64 -lpng") # -lm -lrt -lpthread -lc++experimental")
### use libstdc++
#SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libstdc++")
### use libc++
SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
#SET (CMAKE_LIBRARY_PATH "/usr/lib/x86_64-linux-gnu")
################################################################################

SET (CMAKE_VERBOSE_MAKEFILE on)

SET (SOURCES main.cpp helpers.cpp rgb.cpp perlinNoise.cpp perlinDemos.cpp palette.cpp paletteTest.cpp imageTest.cpp rgbTest.cpp)
SET (OBJ_EXECUTABLE sg)

ADD_EXECUTABLE(${OBJ_EXECUTABLE} ${SOURCES})

# ------------------------- Begin Generic CMake Variable Logging ------------------

# /*	C++ comment style not allowed	*/

# if you are building in-source, this is the same as CMAKE_SOURCE_DIR, otherwise
# this is the top level directory of your build tree
MESSAGE( STATUS "CMAKE_BINARY_DIR:         " ${CMAKE_BINARY_DIR} )

# if you are building in-source, this is the same as CMAKE_CURRENT_SOURCE_DIR, otherwise this
# is the directory where the compiled or generated files from the current CMakeLists.txt will go to
MESSAGE( STATUS "CMAKE_CURRENT_BINARY_DIR: " ${CMAKE_CURRENT_BINARY_DIR} )

# this is the directory, from which cmake was started, i.e. the top level source directory
MESSAGE( STATUS "CMAKE_SOURCE_DIR:         " ${CMAKE_SOURCE_DIR} )

# this is the directory where the currently processed CMakeLists.txt is located in
MESSAGE( STATUS "CMAKE_CURRENT_SOURCE_DIR: " ${CMAKE_CURRENT_SOURCE_DIR} )

# contains the full path to the top level directory of your build tree
MESSAGE( STATUS "PROJECT_BINARY_DIR: " ${PROJECT_BINARY_DIR} )

# contains the full path to the root of your project source directory,
# i.e. to the nearest directory where CMakeLists.txt contains the PROJECT() command
MESSAGE( STATUS "PROJECT_SOURCE_DIR: " ${PROJECT_SOURCE_DIR} )

# set this variable to specify a common place where CMake should put all executable files
# (instead of CMAKE_CURRENT_BINARY_DIR)
MESSAGE( STATUS "EXECUTABLE_OUTPUT_PATH: " ${EXECUTABLE_OUTPUT_PATH} )

# set this variable to specify a common place where CMake should put all libraries
# (instead of CMAKE_CURRENT_BINARY_DIR)
MESSAGE( STATUS "LIBRARY_OUTPUT_PATH:     " ${LIBRARY_OUTPUT_PATH} )

# tell CMake to search first in directories listed in CMAKE_MODULE_PATH
# when you use FIND_PACKAGE() or INCLUDE()
MESSAGE( STATUS "CMAKE_MODULE_PATH: " ${CMAKE_MODULE_PATH} )

# this is the complete path of the cmake which runs currently (e.g_. /usr/local/bin/cmake)
MESSAGE( STATUS "CMAKE_COMMAND: " ${CMAKE_COMMAND} )

# this is the CMake installation directory
MESSAGE( STATUS "CMAKE_ROOT: " ${CMAKE_ROOT} )

# this is the filename including the complete path of the file where this variable is used.
MESSAGE( STATUS "CMAKE_CURRENT_LIST_FILE: " ${CMAKE_CURRENT_LIST_FILE} )

# this is linenumber where the variable is used
MESSAGE( STATUS "CMAKE_CURRENT_LIST_LINE: " ${CMAKE_CURRENT_LIST_LINE} )

# this is used when searching for include files e.g_. using the FIND_PATH() command.
MESSAGE( STATUS "CMAKE_INCLUDE_PATH: " ${CMAKE_INCLUDE_PATH} )

# this is used when searching for libraries e.g_. using the FIND_LIBRARY() command.
MESSAGE( STATUS "CMAKE_LIBRARY_PATH: " ${CMAKE_LIBRARY_PATH} )

# the complete system name, e.g_. "Linux-2.4.22", "FreeBSD-5.4-RELEASE" or "Windows 5.1"
MESSAGE( STATUS "CMAKE_SYSTEM: " ${CMAKE_SYSTEM} )

# the short system name, e.g_. "Linux", "FreeBSD" or "Windows"
MESSAGE( STATUS "CMAKE_SYSTEM_NAME: " ${CMAKE_SYSTEM_NAME} )

# only the version part of CMAKE_SYSTEM
MESSAGE( STATUS "CMAKE_SYSTEM_VERSION: " ${CMAKE_SYSTEM_VERSION} )

# the processor name (e.g_. "Intel(R) Pentium(R) M processor 2.00GHz")
MESSAGE( STATUS "CMAKE_SYSTEM_PROCESSOR: " ${CMAKE_SYSTEM_PROCESSOR} )

# is TRUE on all UNIX-like OS's, including Apple OS X and CygWin
MESSAGE( STATUS "UNIX: " ${UNIX} )

# is TRUE on Windows, including CygWin
MESSAGE( STATUS "WIN32: " ${WIN32} )

# is TRUE on Apple OS X
MESSAGE( STATUS "APPLE: " ${APPLE} )

# is TRUE when using the MinGW compiler in Windows
MESSAGE( STATUS "MINGW: " ${MINGW} )

# is TRUE on Windows when using the CygWin version of cmake
MESSAGE( STATUS "CYGWIN: " ${CYGWIN} )

# is TRUE on Windows when using a Borland compiler
MESSAGE( STATUS "BORLAND: " ${BORLAND} )

# Microsoft compiler
MESSAGE( STATUS "MSVC: " ${MSVC} )
MESSAGE( STATUS "MSVC_IDE: " ${MSVC_IDE} )
MESSAGE( STATUS "MSVC60: " ${MSVC60} )
MESSAGE( STATUS "MSVC70: " ${MSVC70} )
MESSAGE( STATUS "MSVC71: " ${MSVC71} )
MESSAGE( STATUS "MSVC80: " ${MSVC80} )
MESSAGE( STATUS "CMAKE_COMPILER_2005: " ${CMAKE_COMPILER_2005} )


# set this to true if you don't want to rebuild the object files if the rules have changed,
# but not the actual source files or headers (e.g_. if you changed the some compiler switches)
MESSAGE( STATUS "CMAKE_SKIP_RULE_DEPENDENCY: " ${CMAKE_SKIP_RULE_DEPENDENCY} )

# since CMake 2.1 the install rule depends on all, i.e. everything will be built before installing.
# If you don't like this, set this one to true.
MESSAGE( STATUS "CMAKE_SKIP_INSTALL_ALL_DEPENDENCY: " ${CMAKE_SKIP_INSTALL_ALL_DEPENDENCY} )

# If set, runtime paths are not added when using shared libraries. Default it is set to OFF
MESSAGE( STATUS "CMAKE_SKIP_RPATH: " ${CMAKE_SKIP_RPATH} )

# set this to true if you are using makefiles and want to see the full compile and link
# commands instead of only the shortened ones
MESSAGE( STATUS "CMAKE_VERBOSE_MAKEFILE: " ${CMAKE_VERBOSE_MAKEFILE} )

# this will cause CMake to not put in the rules that re-run CMake. This might be useful if
# you want to use the generated build files on another machine.
MESSAGE( STATUS "CMAKE_SUPPRESS_REGENERATION: " ${CMAKE_SUPPRESS_REGENERATION} )


# A simple way to get switches to the compiler is to use ADD_DEFINITIONS().
# But there are also two variables exactly for this purpose:

# the compiler flags for compiling C sources
MESSAGE( STATUS "CMAKE_C_FLAGS: " ${CMAKE_C_FLAGS} )

# the compiler flags for compiling C++ sources
MESSAGE( STATUS "CMAKE_CXX_FLAGS: " ${CMAKE_CXX_FLAGS} )


# Choose the type of build.  Example: SET(CMAKE_BUILD_TYPE Debug)
MESSAGE( STATUS "CMAKE_BUILD_TYPE: " ${CMAKE_BUILD_TYPE} )

# if this is set to ON, then all libraries are built as shared libraries by default.
MESSAGE( STATUS "BUILD_SHARED_LIBS: " ${BUILD_SHARED_LIBS} )

# the compiler used for C files
MESSAGE( STATUS "CMAKE_C_COMPILER: " ${CMAKE_C_COMPILER} )

# the compiler used for C++ files
MESSAGE( STATUS "CMAKE_CXX_COMPILER: " ${CMAKE_CXX_COMPILER} )

# if the compiler is a variant of gcc, this should be set to 1
MESSAGE( STATUS "CMAKE_COMPILER_IS_GNUCC: " ${CMAKE_COMPILER_IS_GNUCC} )

# if the compiler is a variant of g_++, this should be set to 1
MESSAGE( STATUS "CMAKE_COMPILER_IS_GNUCXX : " ${CMAKE_COMPILER_IS_GNUCXX} )

# the tools for creating libraries
MESSAGE( STATUS "CMAKE_AR: " ${CMAKE_AR} )
MESSAGE( STATUS "CMAKE_RANLIB: " ${CMAKE_RANLIB} )

#
#MESSAGE( STATUS ": " ${} )
MESSAGE( STATUS )

# ------------------------- End of Generic CMake Variable Logging ------------------