CMakeLists.txt

cmake_minimum_required(VERSION 3.10)

# Use CMake or Visual Studio to enable these settings.
option(BUILD_FOR_NOKIA_NGAGE "Build for the Nokia N-Gage" OFF)

if(BUILD_FOR_NOKIA_NGAGE)
  if(DEFINED ENV{NGAGESDK})
    set(NGAGESDK $ENV{NGAGESDK})
    set(CMAKE_TOOLCHAIN_FILE ${NGAGESDK}/cmake/ngage-toolchain.cmake)
  else()
    message(FATAL_ERROR "The environment variable NGAGESDK needs to be defined.")
  endif()

  set(GCC_MODULE_COMN_DEFS -D__SYMBIAN32__ -D__GCC32__ -D__EPOC32__ -D__MARM__ -D__MARM_ARMI__)
  set(GCC_MODULE_MODE_DEFS -DNDEBUG -D_UNICODE)
  set(GCC_MODULE_DEFS      ${GCC_MODULE_COMN_DEFS} ${GCC_MODULE_MODE_DEFS})
endif()

include(FetchContent)

if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24)
  cmake_policy(SET CMP0135 NEW)
endif()

set(SDL_VERSION "2.24.2")

FetchContent_Populate(
  SDL2
  URL https://github.com/libsdl-org/SDL/releases/download/release-${SDL_VERSION}/SDL2-${SDL_VERSION}.zip
  URL_HASH
  SHA256=7fae98ac4e7b39eb2511fc27c2e84b220ac69b5296ff41f833b967c891f9d2ac
  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/SDL-${SDL_VERSION})

project(SDL2_gfx C)

set(SDL2_gfx_sources
  ${CMAKE_CURRENT_SOURCE_DIR}/SDL2_framerate.c
  ${CMAKE_CURRENT_SOURCE_DIR}/SDL2_gfxPrimitives.c
  ${CMAKE_CURRENT_SOURCE_DIR}/SDL2_imageFilter.c
  ${CMAKE_CURRENT_SOURCE_DIR}/SDL2_rotozoom.c)

add_library(
  ${PROJECT_NAME}
  STATIC
  ${SDL2_gfx_sources})

target_compile_definitions(
  ${PROJECT_NAME}
  PUBLIC
  ${GCC_MODULE_DEFS})

if (BUILD_FOR_NOKIA_NGAGE)
  target_compile_options(
    ${PROJECT_NAME}
    PUBLIC
    -O3)
endif()

target_include_directories(
  ${PROJECT_NAME}
  PUBLIC
  ${CMAKE_CURRENT_BINARY_DIR}/SDL-${SDL_VERSION}/include)

if (CMAKE_C_COMPILER_ID STREQUAL "Clang")
  set(COMPILE_OPTIONS
    -Wall
    -Wextra
    -Wpedantic
    -Wcast-align
    -Wpointer-arith
    -Wshadow
    -Wsign-compare
    -Wundef
    -Wwrite-strings)

elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
  set(COMPILE_OPTIONS
    -Wall
    -Wextra
    -Wpedantic
    -Wcast-align
    -Wpointer-arith
    -Wshadow
    -Wsign-compare
    -Wundef
    -Wwrite-strings)

elseif (CMAKE_C_COMPILER_ID STREQUAL "MSVC")
  set(COMPILE_OPTIONS
    /W4
    /utf-8)
endif()