BitGraph/CMakeLists.txt at master · psanse/BitGraph · GitHub

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cmake_minimum_required (VERSION 2.8...3.14)

if(${CMAKE_VERSION} VERSION_GREATER "3.24.0")
   cmake_policy(SET CMP0135 NEW)
endif()

set(CMAKE_INSTALL_PREFIX ${CMAKE_SOURCE_DIR}/install CACHE PATH "prefix directory to install BitGraph - default set to a local dir in the package which includes a linking example")

#C++14 required for BitGraph and googletest
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

############
# project
###########

set(LIBNAME "BitGraph")
set(LIB_MAJOR_VERS "1")
set(LIB_MINOR_VERS "4")
set(LIB_PATCH_VERS "3")

project(${LIBNAME}
    VERSION  ${LIB_MAJOR_VERS}.${LIB_MINOR_VERS}.${LIB_PATCH_VERS}
	LANGUAGES CXX C	)

#################
# Introduce variables for export:
# * CMAKE_INSTALL_LIBDIR		#lib
# * CMAKE_INSTALL_BINDIR		#bin
# * CMAKE_INSTALL_INCLUDEDIR	#include
include(GNUInstallDirs)

#################
# UNIT TESTS (using googletest)

#Tests and examples are not built by default in Projects which embed BitGraph
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
	#Root dir - BitGraph project, build tests
	SET(BUILD_TESTS ON CACHE BOOL "builds tests for BitGraph (uses googletest)" FORCE)
	SET(BUILD_EXAMPLES ON CACHE BOOL "builds examples for BitGraph " FORCE)
	#SET(INSTALL_BITGRAPH ON CACHE BOOL "installs BitGraph if required" FORCE)

else()
	#not Root dir - Project embedding BitGraph, building tests / examples and installing BitGraph is not enabled
	SET(BUILD_TESTS OFF CACHE BOOL "builds tests for BitGraph (uses googletest)" FORCE)
	SET(BUILD_EXAMPLES OFF CACHE BOOL "builds examples for BitGraph " FORCE)
	#SET(INSTALL_BITGRAPH OFF CACHE BOOL "installs BitGraph if required" FORCE)
endif()

###################
# INSTALL BitGraph (find_package, config mode)
option(INSTALL_BITGRAPH "Enable installation of BitGraph. (Projects embedding BitGraph may want to turn this OFF.)" ON)

###################
# INSTALL googletest - default off
option(INSTALL_GTEST "Enable installation of googletest (disabled by default)" OFF)

#############
# OpenMP (Windows)
option(INCLUDE_OPENMP "Makes OpenMP available (only for Windows platforms)" OFF)

#############
# APPLE options  - extend to other SO
if (APPLE)
    set(CMAKE_OSX_ARCHITECTURES "x86_64;arm64" CACHE STRING "Set architectures for Apple platforms (x86_64;arm64)" FORCE)
	set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Set minimum deployment target for Apple platforms (10.15)" FORCE)
    set(CMAKE_PREFIX_PATH "/usr/local/homebrew")
    #add_compile_options(-arch arm64)
endif (APPLE)

####################
# Subdirectories
####################
add_subdirectory (src)