project(
'nix',
'cpp',
default_options : [
'cpp_std=c++17',
'warning_level=3',
'optimization=3',
'debug=true'
],
version : run_command('cat', './.version').stdout().strip(),
license : 'MIT'
)
# init compiler
cpp = meson.get_compiler('cpp')
add_project_arguments(get_option('cxxflags'), language : 'cpp')
add_project_link_arguments(get_option('ldflags'), language: 'cpp')
pkg = import('pkgconfig')
cmake = import('cmake')
config_h = configuration_data()
config_h.set(
'HAVE_CXX17', 1,
description : 'Define if the compiler supports basic C++17 syntax')
package_name = meson.project_name()
config_h.set_quoted(
'PACKAGE_NAME', package_name,
description : 'Define to the full name of this package.'
)
package_tarname = meson.project_name()
config_h.set_quoted(
'PACKAGE_TARNAME', package_tarname,
description : 'Define to the one symbol short name of this package.')
package_version = meson.project_version()
config_h.set_quoted(
'PACKAGE_VERSION', package_version,
description : 'Define to the version of this package.')
package_string = '@0@ @1@'.format(package_name, package_version)
config_h.set_quoted(
'PACKAGE_STRING', package_string,
description : 'Define to the full name and version of this package.')
package_url = 'https://nixos.org/nix/'
config_h.set_quoted(
'PACKAGE_URL', package_url,
description : 'Define to the home page for this package.')
package_bug_url = 'https://github.com/nixos/nix/issues'
config_h.set_quoted(
'PACKAGE_BUGREPORT', package_bug_url,
description : 'Define to the address where bug reports for this package should be sent.')
# env
# set install directories
#-------------------------------------------------
prefix = get_option('prefix')
libdir = join_paths(prefix, get_option('libdir'))
bindir = join_paths(prefix, get_option('bindir'))
datadir = join_paths(prefix, get_option('datadir'))
sysconfdir = join_paths(prefix, get_option('sysconfdir'))
libexecdir = join_paths(prefix, get_option('libexecdir'))
mandir = join_paths(prefix, get_option('mandir'))
includedir = join_paths(prefix, get_option('includedir'))
# set nix directories
# State should be stored in /nix/var, unless the user overrides it explicitly.
if get_option('normal_var')
localstatedir = '/nix/var'
else
localstatedir = join_paths(prefix, get_option('localstatedir'))
endif
nixstoredir = get_option('nixstoredir')
profiledir = join_paths(sysconfdir, 'profile.d')
# Construct a Nix system name (like "i686-linux").
#-------------------------------------------------
machine_name = host_machine.cpu()
sys_name = host_machine.system().to_lower()
cpu_archs = ['x86_64', 'armv6', 'armv7', '']
foreach cpu : cpu_archs
if (host_machine.cpu().contains(cpu))
if cpu.contains('armv')
machine_name = cpu + '1'
else
machine_name = cpu
endif
break
endif
endforeach
system= '"' + machine_name + '-' + sys_name + '"'
message('system name: ' + system)
config_h.set(
'SYSTEM', system,
description : 'platform identifier (`cpu-os`)')
# checking headers
#============================================================================
if (cpp.has_header('sys/stat.h'))
config_h.set(
'HAVE_SYS_STAT_H', 1,
description : 'Define to 1 if you have the <sys/stat.h> header file.')
endif
if (cpp.has_header('sys/types.h'))
config_h.set(
'HAVE_SYS_TYPES_H', 1,
description : 'Define to 1 if you have the <sys/types.h> header file.')
endif
if (cpp.has_header('sys/dir.h'))
config_h.set(
'HAVE_DIR_H', 1,
description : 'Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR`')
endif
if (cpp.has_header('sys/ndir.h'))
config_h.set(
'HAVE_NDIR_H', 1,
description : 'Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR`')
endif
has_dirent_h = cpp.has_header('dirent.h')
if (has_dirent_h)
config_h.set(
'HAVE_DIRENT_H', 1,
description : 'Define to 1 if you have the <dirent.h> header file, and it defines `DIR`')
endif
if (cpp.has_header('locale.h'))
config_h.set(
'HAVE_LOCALE', 1,
description : 'Define to 1 if you have the <locale.h> header file.')
endif
if (cpp.has_header('unistd.h'))
config_h.set(
'HAVE_UNISTD_H', 1,
description: 'Define to 1 if you have the <unistd.h> header file.')
endif
if (cpp.has_header('stdint.h'))
config_h.set(
'HAVE_STDINT_H', 1,
description: 'Define to 1 if you have the <stdint.h> header file.')
endif
if (cpp.has_header('stdlib.h'))
config_h.set(
'HAVE_STDLIB_H', 1,
description: 'Define to 1 if you have the <stdlib.h> header file.')
endif
if (cpp.has_header('strings.h'))
config_h.set(
'HAVE_STRINGS_H', 1,
description: 'Define to 1 if you have the <strings.h> header file.')
endif
if (cpp.has_header('string.h'))
config_h.set(
'HAVE_STRING_H', 1,
description: 'Define to 1 if you have the <strings.h> header file.')
endif
if (cpp.has_header('bzlib.h'))
config_h.set(
'HAVE_BZLIB_H', 1,
description : 'Define to 1 if you have the <bzlib.h> header file.')
endif
if (cpp.has_header('inttypes.h'))
config_h.set(
'HAVE_INTTYPES_H', 1,
description : 'Define to 1 if you have the <inttypes.h> header file.')
endif
if (cpp.has_header('memory.h'))
config_h.set(
'HAVE_MEMORY_H', 1,
description : 'Define to 1 if you have the <memory.h> header file.')
endif
if (cpp.has_header('editline.h'))
config_h.set(
'HAVE_EDITLINE_H', 1,
description : 'Define to 1 if you have the <editline.h> header file.')
else
error('Nix requires editline.h; however the header was not found.')
endif
# checking functions
#============================================================================
if (cpp.has_function('lutimes'))
config_h.set(
'HAVE_LUTIMES', 1,
description : 'Define to 1 if you have the `lutimes` function.')
endif
if (cpp.has_function('lchown'))
config_h.set(
'HAVE_LCHOWN', 1,
description : 'Define to 1 if you have the `lchown` function.')
endif
if (cpp.has_function('pipe2'))
config_h.set(
'HAVE_PIPE2', 1,
description : 'Define to 1 if you have the `pipe2` function.')
endif
if (cpp.has_function('posix_fallocate'))
config_h.set(
'HAVE_POSIX_FALLOCATE', 1,
description : 'Define to 1 if you have the `posix_fallocate` function.')
endif
if (cpp.has_function('setresuid'))
config_h.set(
'HAVE_SETRESUID', 1,
description : 'Define to 1 if you have the `setresuid` function.')
endif
if (cpp.has_function('setreuid'))
config_h.set(
'HAVE_SETREUID', 1,
description : 'Define to 1 if you have the `setreuid` function.')
endif
if (cpp.has_function('statvfs'))
config_h.set(
'HAVE_STATVFS', 1,
description : 'Define to 1 if you have the `statvfs` function.')
endif
if (cpp.has_function('strsignal'))
config_h.set(
'HAVE_STRSIGNAL', 1,
description : 'Define to 1 if you have the `strsignal` function.')
endif
if (cpp.has_function('sysconf'))
config_h.set(
'HAVE_SYSCONF', 1,
description : 'Define to 1 if you have the `sysconf` function.')
endif
pubsetbuff_c = '''
#include <iostream>
using namespace std;
static char buf[1024];
void func() {
cerr.rdbuf()->pubsetbuf(buf, sizeof(buf));
}'''
if meson.get_compiler('cpp').compiles(
pubsetbuff_c,
name : 'pubsetbuf'
)
config_h.set(
'HAVE_PUBSETBUF', 1,
description : 'Define to 1 if you have the `pubsetbuf` function.')
endif
# checking data types
#============================================================================
dirent_h_prefix = '''
#include <sys/types.h>
#include <dirent.h>
'''
if has_dirent_h and meson.get_compiler('cpp').has_member('struct dirent', 'd_type', prefix: dirent_h_prefix)
config_h.set('HAVE_STRUCT_DIRENT_D_TYPE', 1)
endif
# required dependancies
#============================================================================
# look for required programs
#--------------------------------------------------
cat = find_program('cat', required : true)
ln = find_program('ln', required : true)
cp = find_program('cp', required : true)
rm = find_program('rm', required : true)
bash = find_program('bash', required : true)
echo = find_program('echo', required : true)
patch = find_program('patch', required : true)
xmllint = find_program('xmllint', required : true)
flex = find_program('flex', required : true)
bison = find_program('bison', required : true)
sed = find_program('sed', required : true)
tar = find_program('tar', required : true)
bzip2 = find_program('bzip2', required : true)
gzip = find_program('gzip', required : true)
xz = find_program('xz', required : true)
dot = find_program('dot', required : false)
lsof = find_program('lsof', required : false)
tr = find_program('tr', required : true)
coreutils = run_command('dirname', cat.path()).stdout().strip()
# Check whether the store optimiser can optimise symlinks.
#-------------------------------------------------
gen_header = '''
ln -s bla tmp_link
if ln tmp_link tmp_link2 2> /dev/null; then
echo 1
else
echo 0
fi
'''
run_command('sh', '-c', 'rm tmp_link*')
can_link_symlink = run_command('sh', '-c', gen_header).stdout().strip()
if can_link_symlink.to_int() == 1
run_command('sh', '-c', 'rm tmp_link*')
endif
config_h.set('CAN_LINK_SYMLINK', can_link_symlink,
description : 'Whether link() works on symlinks')
# Import the Abseil cmake project from the (symlinked) depot sources.
absl = cmake.subproject('abseil_cpp')
# Bundle all relevant Abseil libraries. Meson is not able to resolve
# the internal dependencies of Abseil, and reconstructing them is more
# work than I am willing to invest at the moment.
absl_deps = [
absl.dependency('algorithm_container'),
absl.dependency('base'),
absl.dependency('bits'),
absl.dependency('city'),
absl.dependency('config'),
absl.dependency('container_common'),
absl.dependency('container_memory'),
absl.dependency('core_headers'),
absl.dependency('debugging_internal'),
absl.dependency('demangle_internal'),
absl.dependency('dynamic_annotations'),
absl.dependency('endian'),
absl.dependency('fixed_array'),
absl.dependency('graphcycles_internal'),
absl.dependency('hash'),
absl.dependency('hash_function_defaults'),
absl.dependency('hashtablez_sampler'),
absl.dependency('int128'),
absl.dependency('malloc_internal'),
absl.dependency('memory'),
absl.dependency('meta'),
absl.dependency('node_hash_policy'),
absl.dependency('node_hash_set'),
absl.dependency('optional'),
absl.dependency('raw_hash_set'),
absl.dependency('raw_logging_internal'),
absl.dependency('spinlock_wait'),
absl.dependency('stacktrace'),
absl.dependency('strings'),
absl.dependency('symbolize'),
absl.dependency('synchronization'),
absl.dependency('throw_delegate'),
absl.dependency('time'),
absl.dependency('time_zone'),
absl.dependency('type_traits'),
absl.dependency('utility'),
absl.dependency('variant'),
]
# Look for boost, a required dependency.
#--------------------------------------------------
boost_dep = declare_dependency(
dependencies : [
cpp.find_library('boost_system'),
cpp.find_library('boost_context'),
cpp.find_library('boost_thread')],
link_args : get_option('boost_link_args'))
if (boost_dep.found())
config_h.set('HAVE_BOOST', 1, description : 'Define if the Boost library is available.')
endif
# Look for liblzma, a required dependency.
#--------------------------------------------------
liblzma_dep = declare_dependency(
dependencies: dependency('liblzma'),
link_args : get_option('lzma_link_args'))
# Look for libbrotli{enc,dec}.
#--------------------------------------------------
libbrotli_dep = declare_dependency(
dependencies: [
dependency('libbrotlienc'),
dependency('libbrotlidec')],
link_args : get_option('brotli_link_args'))
# Look for OpenSSL, a required dependency.
#--------------------------------------------------
openssl_dep = declare_dependency(
dependencies: cpp.find_library('ssl'),
link_args : get_option('openssl_link_args'))
# Look for SQLite, a required dependency.
#--------------------------------------------------
sqlite3_dep = declare_dependency(
dependencies : dependency('sqlite3', version : '>= 3.6.19'),
link_args : get_option('sqlite3_link_args'))
# Look for libcurl, a required dependency.
#--------------------------------------------------
libcurl_dep = declare_dependency(
dependencies : dependency('libcurl'),
link_args : get_option('curl_link_args'))
# Look for pthread, a required dependency.
#--------------------------------------------------
pthread_dep = declare_dependency(
dependencies : dependency('threads'),
link_args : get_option('pthread_link_args'))
# Look for libdl, a required dependency.
#--------------------------------------------------
libdl_dep = declare_dependency(
dependencies : cpp.find_library('dl'),
link_args : get_option('dl_link_args'))
# Look for libbz2, a required dependency.
#--------------------------------------------------
libbz2_dep = declare_dependency(
dependencies : cpp.find_library('bz2'),
link_args : get_option('bz2_link_args'))
# Look for glog, a required dependency.
#--------------------------------------
glog_dep = declare_dependency(
dependencies : cpp.find_library('glog'),
link_args : get_option('glog_link_args'))
# Look for editline, a required dependency.
#--------------------------------------------------
# NOTE: The the libeditline.pc file was added only in libeditline >= 1.15.2, see
# https://github.com/troglobit/editline/commit/0a8f2ef4203c3a4a4726b9dd1336869cd0da8607,
# but e.g. Ubuntu 16.04 has an older version, so we fall back to searching for
# editline.h when the pkg-config approach fails.
editline_dep = declare_dependency(
dependencies : cpp.find_library('editline'),
link_args : get_option('editline_link_args'))
if not (
cpp.has_function(
'read_history',
prefix : '#include <stdio.h>\n#include "editline.h"',
args : '-lreadline'))
warning('Nix requires libeditline; However, required functions do not work. Maybe ' +\
'it is too old? >= 1.14 is required.')
endif
# Look for libsodium, an optional dependency.
#--------------------------------------------------
libsodium_lib = cpp.find_library('sodium', required: get_option('with_libsodium'))
if (libsodium_lib.found())
libsodium_dep = declare_dependency(
dependencies : libsodium_lib,
link_args : get_option('sodium_link_args'))
config_h.set('HAVE_SODIUM', 1, description : 'Whether to use libsodium for cryptography.')
else
libsodium_dep = dependency('', required: false)
endif
# Look for Boehm garbage collector, a required dependency.
# TODO(tazjin): Remove option to disable GC
gc_dep = declare_dependency(
dependencies : dependency('bdw-gc'),
link_args : get_option('gc_link_args'))
config_h.set(
'HAVE_BOEHMGC', 1,
description : 'Whether to use the Boehm garbage collector.')
# Look for aws-cpp-sdk-s3.
#--------------------------------------------------
if (get_option('with_s3'))
enable_s3 = meson.get_compiler('cpp').check_header('aws/s3/S3Client.h')
aws_version = meson.get_compiler('cpp').get_define(
'AWS_SDK_VERSION_STRING',
prefix : '#include <aws/core/VersionConfig.h>'
).strip('"').split('.')
conf_data.set('ENABLE_S3', 1, description : 'Whether to enable S3 support via aws-sdk-cpp.')
conf_data.set('AWS_VERSION_MAJOR', aws_version[0], description : 'Major version of aws-sdk-cpp.')
conf_data.set('AWS_VERSION_MINOR', aws_version[1], description : 'Minor version of aws-sdk-cpp.')
endif
# OS Specific checks
#============================================================================
# Look for libsecppomp, required for Linux sandboxing.
if sys_name.contains('linux')
libseccomp_dep = dependency(
'libseccomp',
version : '>= 2.3.1',
not_found_message : 'Nix requires libseccomp on a linux host system')
config_h.set(
'HAVE_SECCOMP', 1,
description : 'Whether seccomp is available and should be used for sandboxing.')
else
libseccomp_dep = dependency('', required: false)
endif
if (sys_name.contains('freebsd'))
add_project_arguments('-D_GNU_SOURCE', language : 'cpp')
config_h.set('_GNU_SOURCE', 1)
endif
if (sys_name.contains('sunos'))
# Solaris requires -lsocket -lnsl for network functions
endif
# build
#============================================================================
conf = configure_file(
output : 'config.h',
configuration : config_h)
install_headers(
conf,
install_dir : join_paths(includedir, 'nix'))
add_project_arguments('-include', 'config.h', language : 'cpp')
src_inc = [include_directories('.', 'src')]
project_dirs = [
'src',
'scripts',
'corepkgs',
'misc',
'doc',
'tests'
]
foreach dir : project_dirs
subdir(dir)
endforeach
