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CMakeLists.txt
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CMakeLists.txt
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# CMake build system for mdfourier-amiga
# Copyright (C) 2022 Dale Whinham <daleyo@gmail.com>
cmake_minimum_required(VERSION 3.13)
project(mdfourier ASM C)
# Look for Amiga-GCC
if(NOT AMIGA_GCC)
if(DEFINED ENV{AMIGA_GCC})
set(AMIGA_GCC $ENV{AMIGA_GCC} CACHE STRING "Path to Amiga-GCC.")
else()
message(FATAL_ERROR "Couldn't find Amiga-GCC. Please set the AMIGA_GCC environment variable.")
endif()
endif()
# Look for required external tools
find_package(Git)
# If Git was found, add a custom target to generate version information for every build
if(GIT_FOUND)
add_custom_target(version ALL
COMMAND ${CMAKE_COMMAND} -DGIT_EXECUTABLE=${GIT_EXECUTABLE} -DAPP_NAME=${CMAKE_PROJECT_NAME} -P ${CMAKE_SOURCE_DIR}/cmake/version.cmake
COMMENT "Generating version information using git"
SOURCES src/version.c.in
)
# Prevent CMake from looking for this nonexistant file at configure time
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/version.c PROPERTIES GENERATED TRUE)
endif()
# Override release C flags (defaults to -O3)
set(CMAKE_C_FLAGS_DEBUG "-fomit-frame-pointer")
set(CMAKE_C_FLAGS_RELEASE "-Os -s -fomit-frame-pointer")
# Assembly target
add_library(vblank_wrapper OBJECT src/vblank_wrapper.s)
target_compile_options(vblank_wrapper PRIVATE -m68000 -Fhunk -x -quiet)
# Executable target
add_executable(mdfourier
# Sources
src/main.c
src/vblank.c
src/waveform.c
# Headers
include/vblank.h
include/waveform.h
)
# If version information will be generated, add it to the sources list
if(GIT_FOUND)
target_sources(mdfourier PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/version.c)
endif()
set_target_properties(mdfourier PROPERTIES C_STANDARD 99)
# Link options must have -mcrt=nix13, -mregparm to match compile options
target_compile_options(mdfourier PRIVATE -mcrt=nix13 -Wall -Werror -Wno-pointer-sign)
target_link_options(mdfourier PRIVATE -mcrt=nix13)
target_compile_definitions(mdfourier PRIVATE $<$<CONFIG:Debug>:DEBUG>)
target_link_libraries(mdfourier vblank_wrapper amiga $<$<CONFIG:Debug>:debug>)
target_include_directories(mdfourier PRIVATE include external/optparse)
set_property(TARGET mdfourier PROPERTY C_STANDARD 99)
# Ensure version info is generated before building
if(GIT_FOUND)
add_dependencies(mdfourier version)
endif()