CMakeLists.txt

cmake_minimum_required(VERSION 3.17)

set(LKT_VERSION 2.4)

if(CMAKE_BUILD_TYPE STREQUAL "Release")
    set(CMAKE_BUILD_TYPE RelWithDebInfo)
endif()

project(lektor VERSION ${LKT_VERSION} LANGUAGES C CXX)

cmake_policy(SET CMP0100 NEW)
cmake_policy(SET CMP0009 NEW)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/utils/cmake/")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(THREADS_PREFER_PTHREAD_FLAG     ON)
set(CMAKE_COLOR_MAKEFILE            ON)

include(TestBigEndian)   # Needed for endianness tests
include(FindOpenMP)      # Test OpenMP support
include(GNUInstallDirs)  # Needed for installation things
include(ExternalProject) # Enable ExternalProject CMake module

###         ###
# TEST OPENMP #
###         ###

if(OpenMP_FOUND)
    message(STATUS "OpenMP found by CMake for C (version ${OpenMP_C_VERSION}) and C++ (version ${OpenMP_CXX_VERSION})")
else()
    message(FATAL_ERROR "OpenMP not found by CMake for C and C++")
endif()

###                  ###
# SET COMMON VARIABLES #
###                  ###

set(${CMAKE_C_COMPILER_ID}_C_FLAGS)
set(COMMON_C_FLAGS
    -Wall -Wextra -Werror
    -Wshadow
    -Wcast-align
    -Wconversion
    -Wsign-conversion
    -Wunused-variable
    -Wmisleading-indentation
    -Wnull-dereference
    -Wdouble-promotion
    -Wformat=2
    -Wignored-qualifiers
    ${OpenMP_C_FLAGS}
)
set(Clang_C_FLAGS
    -Weverything
    -Wpedantic
    -Wno-extra-semi-stmt
    -Wno-reserved-id-macro
    -Wno-reserved-identifier
    -Wno-used-but-marked-unused
    -Wno-unused-macros
    -Wno-cast-qual
    -Wno-macro-redefined
    -Wno-padded
    -Wno-vla
    -Wno-disabled-macro-expansion
    -Wno-extra-semi
    -Wno-format-nonliteral
    -Wno-missing-variable-declarations
    -Wno-unknown-warning-option
    -Wno-declaration-after-statement