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#
# InspIRCd -- Internet Relay Chat Daemon
#
# Copyright (C) 2026 Sadie Powell <sadie@witchery.services>
#
# This file is part of InspIRCd. InspIRCd is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
cmake_minimum_required(VERSION 3.25 FATAL_ERROR)
project("InspIRCd" LANGUAGES "C" "CXX")
include("CheckFunctionExists")
# Include our custom CMake modules.
list(PREPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/src/cmake")
include("inspircd")
include("version")
# Require C++20 for all targets.
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# This is the C version equivalent to the C++ version we use.
set(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_C_STANDARD 17)
set(CMAKE_C_STANDARD_REQUIRED ON)
# Enable -fPIC for all targets.
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
# Enable -fvisibility for all targets.
set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
set(CMAKE_VISIBILITY_INLINES_HIDDEN YES)
if(NOT CMAKE_BUILD_TYPE)
message(STATUS "CMAKE_BUILD_TYPE has not been specified; defaulting to Release")
update_cache(CMAKE_BUILD_TYPE "Release")
endif()
if(CMAKE_BUILD_TYPE MATCHES "^(Debug|RelWithDebInfo)$")
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
endif()
if(WIN32)
add_compile_definitions(
"_WIN32_WINNT=0x0A00" # Set the minimum OS to Windows 10.
"FD_SETSIZE=24000" # Increase the default socket limit to something reasonable.
"NOMINMAX" # Avoid the Windows API breaking std::{min,max}
"NTDDI_VERSION=0x0A000005" # Set the minimum OS to Windows 10 1803 "Redstone 4"
"WIN32_LEAN_AND_MEAN" # Trim down the size of the included headers.
)
else()
# On non-Windows we find a lot of our dependencies with pkg-config.
find_package("PkgConfig")
if(CMAKE_SYSTEM_NAME STREQUAL "Haiku")
# On Haiku we need _DEFAULT_SOURCE for common C extensions and libnetwork for creating
# sockets.
add_compile_definitions("_DEFAULT_SOURCE")
link_libraries("network")
elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
# On Solaris and derivatives we need libsocket for creating sockets.
link_libraries("socket")
endif()
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "(^GNU|Clang)$")
add_compile_options(
"-Wall" "-Wextra" "-Wfatal-errors" "-Wpedantic"
"-Wno-unused-parameter"
"$<$<COMPILE_LANGUAGE:CXX>:-Woverloaded-virtual>"
"$<$<CONFIG:Debug>:-g3;-Werror>"
"$<$<CONFIG:Release,RelWithDebInfo>:-g1>"
"$<$<NOT:$<CONFIG:Debug,None>>:-fno-rtti>"
)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
add_compile_options(
"-Wshadow"
"$<$<COMPILE_LANGUAGE:CXX>:-Wno-subobject-linkage>"
)
elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang$")
add_compile_options("-Wshadow-all" "-Wshorten-64-to-32")
endif()
elseif(MSVC)
# On MSVC we need to set the character set to UTF-8 so {fmt} unicode support works.
add_compile_options("/utf-8")
endif()
if(NOT WIN32)
option(PORTABLE "Whether to install portably" OFF)
option(SYSTEM "Whether to install system-wide" OFF)
if(PORTABLE AND SYSTEM)
message(FATAL_ERROR "PORTABLE and SYSTEM can not be used together!")
endif()
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
if(PORTABLE)
# Portable installs use relative paths for relocatability.
update_cache(CMAKE_INSTALL_PREFIX "run")
elseif(SYSTEM)
# System installs all have paths relative to the root.
update_cache(CMAKE_INSTALL_PREFIX "/")
else()
# If nothing else is specified we install into the source directory.
update_cache(CMAKE_INSTALL_PREFIX "${PROJECT_SOURCE_DIR}/run")
endif()
endif()
option(DISABLE_OWNERSHIP "Whether to install without ownership" OFF)
if(NOT DISABLE_OWNERSHIP)
set(GROUP "" CACHE STRING "The name or id of the group to run as")
find_id("${GROUP}" "g" GROUP_ID GROUP_NAME)
message(STATUS "InspIRCd will run as group ${GROUP_NAME} (${GROUP_ID})")
set(USER "" CACHE STRING "The name or id of the user to run as")
find_id("${USER}" "u" USER_ID USER_NAME)
message(STATUS "InspIRCd will run as user ${USER_NAME} (${USER_ID})")
endif()
endif()
configure_path(
NAME "BINARY_DIR"
SOURCE_DEF "bin"
PORTABLE_DEF "bin"
SYSTEM_DEF "usr/bin"
DESCRIPTION "The directory to install binary files to"
)
configure_path(
NAME "CONFIG_DIR"
SOURCE_DEF "conf"
PORTABLE_DEF "conf"
SYSTEM_DEF "etc/inspircd"
DESCRIPTION "The directory to read config files from"
)
configure_path(
NAME "DATA_DIR"
SOURCE_DEF "data"
PORTABLE_DEF "data"
SYSTEM_DEF "var/lib/inspircd"
DESCRIPTION "The directory to read and write data files to"
)
configure_path(
NAME "EXAMPLE_DIR"
SOURCE_DEF "${CONFIG_DIR}/examples"
PORTABLE_DEF "${CONFIG_DIR}/examples"
SYSTEM_DEF "usr/share/doc/inspircd/examples"
DESCRIPTION "The directory to install example config files to"
)
configure_path(
NAME LOG_DIR
SOURCE_DEF "logs"
PORTABLE_DEF "logs"
SYSTEM_DEF "var/log/inspircd"
DESCRIPTION "The directory to write log files to"
)
configure_path(
NAME "MANUAL_DIR"
SOURCE_DEF "manuals"
PORTABLE_DEF "manuals"
SYSTEM_DEF "usr/share/man/man1"
DESCRIPTION "The directory to install manual files to"
)
configure_path(
NAME "MODULE_DIR"
SOURCE_DEF "modules"
PORTABLE_DEF "modules"
SYSTEM_DEF "usr/lib/inspircd"
DESCRIPTION "The directory to install modules files to"
)
configure_path(
NAME "RUNTIME_DIR"
SOURCE_DEF "${DATA_DIR}"
PORTABLE_DEF "${DATA_DIR}"
SYSTEM_DEF "$<$<NOT:$<PLATFORM_ID:Linux>>:var/>run/inspircd"
DESCRIPTION "The directory to write runtime files to"
)
configure_path(
NAME "SCRIPT_DIR"
SOURCE_DEF "."
PORTABLE_DEF "."
SYSTEM_DEF "/usr/share/inspircd"
DESCRIPTION "The directory to install script files to"
)
set(VERSION_FULL "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
if(DEFINED DISTRIBUTION_LABEL)
# The builder specified an explicit distribution label.
set(VERSION_LABEL ${DISTRIBUTION_LABEL})
elseif(IS_DIRECTORY "${PROJECT_SOURCE_DIR}/.git")
# The builder is building from Git, try to get the Git hash.
find_program(GIT_BINARY "git")
if(DEFINED GIT_BINARY)
execute_process(
COMMAND ${GIT_BINARY} "-C" "${PROJECT_SOURCE_DIR}" "describe" "--tags"
ERROR_QUIET
OUTPUT_VARIABLE GIT_DESCRIPTION
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE GIT_RESULT
)
if(NOT GIT_RESULT AND GIT_DESCRIPTION MATCHES "^v[0-9]+\\.[0-9]+\\.[0-9]+([a-zA-Z0-9]*)-[0-9]+-g([a-f0-9]+)$")
set(VERSION_LABEL ${CMAKE_MATCH_2})
endif()
endif()
endif()
if(DEFINED VERSION_LABEL)
string(APPEND VERSION_FULL "-${VERSION_LABEL}")
endif()
include_directories("include" "${PROJECT_BINARY_DIR}/include")
include_directories(SYSTEM "vendor")
if(WIN32)
include_directories("src/windows")
endif()
set_property(GLOBAL PROPERTY
"USE_FOLDERS" ON # Organise targets into folders.
)
# Vendored libraries used by the core and modules.
add_subdirectory("vendor")
# The main inspircd binary and the win32compat library.
add_subdirectory("include")
add_subdirectory("src")
# Modules that can be loaded by the core.
add_subdirectory("modules")
# Miscellaneous data files.
add_subdirectory("docs")
add_subdirectory("tools")
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