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# PSn00bSDK main build script
# (C) 2021 spicyjpeg - MPL licensed
# NOTE: CMake doesn't support using multiple toolchains in a single project,
# so we can't use add_subdirectory() to build both the libraries and tools. A
# workaround is to use ExternalProject_Add() to launch multiple independent
# CMake instances, creating what's known as a "superbuild".
cmake_minimum_required(VERSION 3.21)
include(ExternalProject)
project(
PSn00bSDK
LANGUAGES NONE
VERSION 0.1.0
DESCRIPTION "Open source PlayStation 1 SDK"
HOMEPAGE_URL "http://lameguy64.net/?page=psn00bsdk"
)
# Including this without initializing at least one language throws a warning and
# there's no way to mute it.
include(GNUInstallDirs)
## Settings
# These are passed through to libpsn00b and the examples (they are defined in
# the toolchain file).
set(
PSN00BSDK_TC $ENV{PSN00BSDK_TC}
CACHE PATH "Path to the GCC toolchain's installation directory"
)
set(
PSN00BSDK_TARGET mipsel-unknown-elf
CACHE STRING "GCC toolchain target triplet"
)
set(
SKIP_EXAMPLES OFF
CACHE BOOL "Skip building SDK examples (not required for installation)"
)
# Forward some important variables to mkpsxiso and to the subprojects (they are
# not inherited automatically as they are not environment variables). This also
# sets all subprojects to "install" everything to a temporary directory in the
# build tree, so they don't actually get installed until "cmake --install" is
# invoked (ExternalProject_Add() runs the subprojects' install step at build
# time).
set(
COMMON_ARGS
-DPSN00BSDK_TC:PATH=${PSN00BSDK_TC}
-DPSN00BSDK_TARGET:STRING=${PSN00BSDK_TARGET}
-DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
)
set(
SUBPROJECT_ARGS
-DCMAKE_TOOLCHAIN_FILE:FILEPATH=${CMAKE_TOOLCHAIN_FILE}
-DCMAKE_INSTALL_PREFIX:PATH=${PROJECT_BINARY_DIR}/install_tree
)
set(
EXAMPLES_ARGS
-DCMAKE_TOOLCHAIN_FILE:FILEPATH=${PROJECT_BINARY_DIR}/install_tree/${CMAKE_INSTALL_LIBDIR}/libpsn00b/cmake/sdk.cmake
-DCMAKE_INSTALL_PREFIX:PATH=${PROJECT_BINARY_DIR}/examples
)
## Subprojects
if(NOT EXISTS ${PROJECT_SOURCE_DIR}/tools/mkpsxiso/CMakeLists.txt)
message(FATAL_ERROR "The mkpsxiso directory is empty. Run 'git submodule update --init --recursive' to populate it.")
endif()
ExternalProject_Add(
tools
SOURCE_DIR ${PROJECT_SOURCE_DIR}/tools
CMAKE_CACHE_ARGS ${COMMON_ARGS} ${SUBPROJECT_ARGS}
INSTALL_DIR install_tree
)
ExternalProject_Add(
mkpsxiso
SOURCE_DIR ${PROJECT_SOURCE_DIR}/tools/mkpsxiso
CMAKE_CACHE_ARGS ${COMMON_ARGS} ${SUBPROJECT_ARGS}
INSTALL_DIR install_tree
)
ExternalProject_Add(
libpsn00b
SOURCE_DIR ${PROJECT_SOURCE_DIR}/libpsn00b
CMAKE_CACHE_ARGS ${COMMON_ARGS} ${SUBPROJECT_ARGS}
INSTALL_DIR install_tree
#DEPENDS tools
)
ExternalProject_Add(
examples
SOURCE_DIR ${PROJECT_SOURCE_DIR}/examples
CMAKE_CACHE_ARGS ${COMMON_ARGS} ${EXAMPLES_ARGS}
INSTALL_DIR examples
DEPENDS libpsn00b tools mkpsxiso
EXCLUDE_FROM_ALL ${SKIP_EXAMPLES}
)
# Install all files in the temporary installation tree, as well as static files
# from the source tree, when "cmake --install" is invoked.
install(
DIRECTORY ${PROJECT_BINARY_DIR}/install_tree/ # THE TRAILING SLASH IS IMPORTANT
DESTINATION .
COMPONENT sdk
USE_SOURCE_PERMISSIONS
)
install(
DIRECTORY doc template
DESTINATION ${CMAKE_INSTALL_DATADIR}/psn00bsdk
COMPONENT docs
)
## CPack configuration
include(cpack/setup.cmake)
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