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godot/SConstruct
Rémi Verschelde df4d769f99 SCons: Set explicit standards to C++98 and C11 
For GCC the 2.1 branch only supports up to GCC 5, which defaulted to
those versions. Trying to build with modern Clang (thus bypassing the
GCC version check) fails because the code is not C++17 compliant.
2025-01-03 11:30:22 +01:00

562 lines
21 KiB
Python
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#!/usr/bin/env python
EnsureSConsVersion(0, 98, 1)
import string
import os
import os.path
import glob
import sys
import methods
methods.update_version()
# scan possible build platforms
platform_list = [] # list of platforms
platform_opts = {} # options for each platform
platform_flags = {} # flags for each platform
active_platforms = []
active_platform_ids = []
platform_exporters = []
global_defaults = []
for x in glob.glob("platform/*"):
if (not os.path.isdir(x) or not os.path.exists(x + "/detect.py")):
continue
tmppath = "./" + x
sys.path.append(tmppath)
import detect
if (os.path.exists(x + "/export/export.cpp")):
platform_exporters.append(x[9:])
if (os.path.exists(x + "/globals/global_defaults.cpp")):
global_defaults.append(x[9:])
if (detect.is_active()):
active_platforms.append(detect.get_name())
active_platform_ids.append(x)
if (detect.can_build()):
x = x.replace("platform/", "") # rest of world
x = x.replace("platform\\", "") # win32
platform_list += [x]
platform_opts[x] = detect.get_opts()
platform_flags[x] = detect.get_flags()
sys.path.remove(tmppath)
sys.modules.pop('detect')
module_list = methods.detect_modules()
# print "Detected Platforms: "+str(platform_list)
methods.save_active_platforms(active_platforms, active_platform_ids)
custom_tools = ['default']
platform_arg = ARGUMENTS.get("platform", ARGUMENTS.get("p", False))
if (os.name == "posix"):
pass
elif (os.name == "nt"):
if (os.getenv("VCINSTALLDIR") == None or platform_arg == "android" or platform_arg == "javascript"):
custom_tools = ['mingw']
env_base = Environment(tools=custom_tools)
if 'TERM' in os.environ:
env_base['ENV']['TERM'] = os.environ['TERM']
env_base.AppendENVPath('PATH', os.getenv('PATH'))
env_base.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
env_base.global_defaults = global_defaults
env_base.android_maven_repos = []
env_base.android_flat_dirs = []
env_base.android_dependencies = []
env_base.android_gradle_plugins = []
env_base.android_gradle_classpath = []
env_base.android_java_dirs = []
env_base.android_res_dirs = []
env_base.android_aidl_dirs = []
env_base.android_jni_dirs = []
env_base.android_default_config = []
env_base.android_manifest_chunk = ""
env_base.android_permission_chunk = ""
env_base.android_appattributes_chunk = ""
env_base.disabled_modules = []
env_base.use_ptrcall = False
env_base.split_drivers = False
# To decide whether to rebuild a file, use the MD5 sum only if the timestamp has changed.
# http://scons.org/doc/production/HTML/scons-user/ch06.html#idm139837621851792
env_base.Decider('MD5-timestamp')
# Use cached implicit dependencies by default. Can be overridden by specifying `--implicit-deps-changed` in the command line.
# http://scons.org/doc/production/HTML/scons-user/ch06s04.html
env_base.SetOption('implicit_cache', 1)
env_base.__class__.android_add_maven_repository = methods.android_add_maven_repository
env_base.__class__.android_add_flat_dir = methods.android_add_flat_dir
env_base.__class__.android_add_dependency = methods.android_add_dependency
env_base.__class__.android_add_java_dir = methods.android_add_java_dir
env_base.__class__.android_add_res_dir = methods.android_add_res_dir
env_base.__class__.android_add_aidl_dir = methods.android_add_aidl_dir
env_base.__class__.android_add_jni_dir = methods.android_add_jni_dir
env_base.__class__.android_add_default_config = methods.android_add_default_config
env_base.__class__.android_add_to_manifest = methods.android_add_to_manifest
env_base.__class__.android_add_to_permissions = methods.android_add_to_permissions
env_base.__class__.android_add_to_attributes = methods.android_add_to_attributes
env_base.__class__.android_add_gradle_plugin = methods.android_add_gradle_plugin
env_base.__class__.android_add_gradle_classpath = methods.android_add_gradle_classpath
env_base.__class__.disable_module = methods.disable_module
env_base.__class__.add_source_files = methods.add_source_files
env_base.__class__.use_windows_spawn_fix = methods.use_windows_spawn_fix
env_base.__class__.split_lib = methods.split_lib
env_base.__class__.add_shared_library = methods.add_shared_library
env_base.__class__.add_library = methods.add_library
env_base.__class__.add_program = methods.add_program
env_base.__class__.CommandNoCache = methods.CommandNoCache
env_base["x86_libtheora_opt_gcc"] = False
env_base["x86_libtheora_opt_vc"] = False
# Build options
customs = ['custom.py']
profile = ARGUMENTS.get("profile", False)
if profile:
import os.path
if os.path.isfile(profile):
customs.append(profile)
elif os.path.isfile(profile + ".py"):
customs.append(profile + ".py")
opts = Variables(customs, ARGUMENTS)
# Target build options
opts.Add('arch', "Platform-dependent architecture (arm/arm64/x86/x64/mips/etc)", '')
opts.Add('bits', "Target platform bits (default/32/64)", 'default')
opts.Add('p', "Platform (alias for 'platform')", '')
opts.Add('platform', "Target platform: any in " + str(platform_list), '')
opts.Add('target', "Compilation target (debug/release_debug/release)", 'debug')
opts.Add('tools', "Build the tools a.k.a. the Godot editor (yes/no)", 'yes')
# Components
opts.Add('deprecated', "Enable deprecated features (yes/no)", 'yes')
opts.Add('gdscript', "Build GDSCript support (yes/no)", 'yes')
opts.Add('minizip', "Build minizip archive support (yes/no)", 'yes')
opts.Add('xml', "XML format support for resources (yes/no)", 'yes')
# Advanced options
opts.Add('disable_3d', "Disable 3D nodes for smaller executable (yes/no)", 'no')
opts.Add('disable_advanced_gui', "Disable advance 3D gui nodes and behaviors (yes/no)", 'no')
opts.Add('extra_suffix', "Custom extra suffix added to the base filename of all generated binary files", '')
opts.Add('unix_global_settings_path', "UNIX-specific path to system-wide settings. Currently only used for templates", '')
opts.Add('verbose', "Enable verbose output for the compilation (yes/no)", 'no')
opts.Add('vsproj', "Generate Visual Studio Project. (yes/no)", 'no')
opts.Add('vsproj_jobs', "Number of parallel builds", '2')
opts.Add('warnings', "Set the level of warnings emitted during compilation (extra/all/moderate/no)", 'no')
opts.Add('progress', "Show a progress indicator during build (yes/no)", 'yes')
opts.Add('dev', "If yes, alias for verbose=yes warnings=all", 'no')
# Thirdparty libraries
opts.Add('builtin_freetype', "Use the builtin freetype library (yes/no)", 'yes')
opts.Add('builtin_glew', "Use the builtin glew library (yes/no)", 'yes')
opts.Add('builtin_libmpcdec', "Use the builtin libmpcdec library (yes/no)", 'yes')
opts.Add('builtin_libogg', "Use the builtin libogg library (yes/no)", 'yes')
opts.Add('builtin_libpng', "Use the builtin libpng library (yes/no)", 'yes')
opts.Add('builtin_libtheora', "Use the builtin libtheora library (yes/no)", 'yes')
opts.Add('builtin_libvorbis', "Use the builtin libvorbis library (yes/no)", 'yes')
opts.Add('builtin_libwebp', "Use the builtin libwebp library (yes/no)", 'yes')
opts.Add('builtin_openssl', "Use the builtin openssl library (yes/no)", 'yes')
opts.Add('builtin_opus', "Use the builtin opus library (yes/no)", 'yes')
# (akien) Unbundling would require work in audio_stream_speex.{cpp,h}, but since speex was
# removed in 3.0+ and this is only to preserve compatibility in 2.1, I haven't worked on it.
# Patches welcome if anyone cares :)
opts.Add('builtin_speex', "Use the builtin speex library (yes/no)", 'yes')
opts.Add('builtin_squish', "Use the builtin squish library (yes/no)", 'yes')
opts.Add('builtin_zlib', "Use the builtin zlib library (yes/no)", 'yes')
# Environment setup
opts.Add("CXX", "C++ compiler")
opts.Add("CC", "C compiler")
opts.Add("CCFLAGS", "Custom flags for the C and C++ compilers")
opts.Add("CFLAGS", "Custom flags for the C compiler")
opts.Add("LINKFLAGS", "Custom flags for the linker")
# add platform specific options
for k in platform_opts.keys():
opt_list = platform_opts[k]
for o in opt_list:
opts.Add(o[0], o[1], o[2])
for x in module_list:
opts.Add('module_' + x + '_enabled', "Enable module '" + x + "' (yes/no)", "yes")
opts.Update(env_base) # update environment
Help(opts.GenerateHelpText(env_base)) # generate help
# add default include paths
env_base.Append(CPPPATH=['#core', '#core/math', '#editor', '#drivers', '#'])
# configure ENV for platform
env_base.platform_exporters = platform_exporters
"""
sys.path.append("./platform/"+env_base["platform"])
import detect
detect.configure(env_base)
sys.path.remove("./platform/"+env_base["platform"])
sys.modules.pop('detect')
"""
if (env_base['target'] == 'debug'):
env_base.Append(CPPFLAGS=['-DDEBUG_MEMORY_ALLOC'])
env_base.Append(CPPFLAGS=['-DSCI_NAMESPACE'])
if (env_base['deprecated'] != 'no'):
env_base.Append(CPPFLAGS=['-DENABLE_DEPRECATED'])
env_base.platforms = {}
selected_platform = ""
if env_base['platform'] != "":
selected_platform = env_base['platform']
elif env_base['p'] != "":
selected_platform = env_base['p']
env_base["platform"] = selected_platform
if selected_platform in platform_list:
sys.path.append("./platform/" + selected_platform)
import detect
if "create" in dir(detect):
env = detect.create(env_base)
else:
env = env_base.Clone()
if (env["dev"] == "yes"):
env["warnings"] = "all"
env["verbose"] = "yes"
if env['vsproj'] == "yes":
env.vs_incs = []
env.vs_srcs = []
def AddToVSProject(sources):
for x in sources:
if type(x) == type(""):
fname = env.File(x).path
else:
fname = env.File(x)[0].path
pieces = fname.split(".")
if len(pieces) > 0:
basename = pieces[0]
basename = basename.replace('\\\\', '/')
env.vs_srcs = env.vs_srcs + [basename + ".cpp"]
env.vs_incs = env.vs_incs + [basename + ".h"]
# print basename
env.AddToVSProject = AddToVSProject
env.extra_suffix = ""
if env["extra_suffix"] != '':
env.extra_suffix += '.' + env["extra_suffix"]
CCFLAGS = env.get('CCFLAGS', '')
env['CCFLAGS'] = ''
env.Append(CCFLAGS=str(CCFLAGS).split())
CFLAGS = env.get('CFLAGS', '')
env['CFLAGS'] = ''
env.Append(CFLAGS=str(CFLAGS).split())
LINKFLAGS = env.get('LINKFLAGS', '')
env['LINKFLAGS'] = ''
env.Append(LINKFLAGS=str(LINKFLAGS).split())
flag_list = platform_flags[selected_platform]
for f in flag_list:
if not (f[0] in ARGUMENTS): # allow command line to override platform flags
env[f[0]] = f[1]
# must happen after the flags, so when flags are used by configure, stuff happens (ie, ssl on x11)
detect.configure(env)
# Set our C and C++ standard requirements.
# Prepending to make it possible to override.
is_msvc = os.name == "nt" and os.getenv("VCINSTALLDIR") and (platform_arg == "windows" or platform_arg == "uwp")
if (not is_msvc):
# Specifying GNU extensions support explicitly, which are supported by both GCC and Clang.
# We don't support C++17 so stick to earlier standards.
# When 2.1 was actively worked on, we were using GCC 5 which defaults to C++98, so use that.
env.Prepend(CFLAGS=["-std=gnu11"])
env.Prepend(CXXFLAGS=["-std=gnu++98"])
else:
# MSVC doesn't support setting C++ to pre-C++14 standards, so do nothing and hope it works.
pass
if (env["warnings"] == 'yes'):
print("WARNING: warnings=yes is deprecated; assuming warnings=all")
if (is_msvc): # MSVC
disable_nonessential_warnings = ['/wd4267', '/wd4244', '/wd4305', '/wd4800'] # Truncations, narrowing conversions...
if (env["warnings"] == 'extra'):
env.Append(CCFLAGS=['/Wall']) # Implies /W4
elif (env["warnings"] == 'all' or env["warnings"] == 'yes'):
env.Append(CCFLAGS=['/W3'] + disable_nonessential_warnings)
elif (env["warnings"] == 'moderate'):
# C4244 shouldn't be needed here being a level-3 warning, but it is
env.Append(CCFLAGS=['/W2'] + disable_nonessential_warnings)
else: # 'no'
env.Append(CCFLAGS=['/w'])
else: # Rest of the world
if (env["warnings"] == 'extra'):
env.Append(CCFLAGS=['-Wall', '-Wextra'])
elif (env["warnings"] == 'all' or env["warnings"] == 'yes'):
env.Append(CCFLAGS=['-Wall'])
elif (env["warnings"] == 'moderate'):
env.Append(CCFLAGS=['-Wall', '-Wno-unused'])
else: # 'no'
env.Append(CCFLAGS=['-w'])
#env['platform_libsuffix'] = env['LIBSUFFIX']
suffix = "." + selected_platform
if (env["target"] == "release"):
if (env["tools"] == "yes"):
print("Tools can only be built with targets 'debug' and 'release_debug'.")
sys.exit(255)
suffix += ".opt"
env.Append(CCFLAGS=['-DNDEBUG'])
elif (env["target"] == "release_debug"):
if (env["tools"] == "yes"):
suffix += ".opt.tools"
else:
suffix += ".opt.debug"
else:
if (env["tools"] == "yes"):
suffix += ".tools"
else:
suffix += ".debug"
if env["arch"] != "":
suffix += "." + env["arch"]
elif (env["bits"] == "32"):
suffix += ".32"
elif (env["bits"] == "64"):
suffix += ".64"
suffix += env.extra_suffix
env["PROGSUFFIX"] = suffix + env["PROGSUFFIX"]
env["OBJSUFFIX"] = suffix + env["OBJSUFFIX"]
env["LIBSUFFIX"] = suffix + env["LIBSUFFIX"]
env["SHLIBSUFFIX"] = suffix + env["SHLIBSUFFIX"]
sys.path.remove("./platform/" + selected_platform)
sys.modules.pop('detect')
env.module_list = []
for x in module_list:
if env['module_' + x + '_enabled'] != "yes":
continue
tmppath = "./modules/" + x
sys.path.append(tmppath)
env.current_module = x
import config
if (config.can_build(selected_platform)):
config.configure(env)
env.module_list.append(x)
sys.path.remove(tmppath)
sys.modules.pop('config')
if (env.use_ptrcall):
env.Append(CPPFLAGS=['-DPTRCALL_ENABLED'])
# to test 64 bits compiltion
# env.Append(CPPFLAGS=['-m64'])
if (env['tools'] == 'yes'):
env.Append(CPPFLAGS=['-DTOOLS_ENABLED'])
if (env['disable_3d'] == 'yes'):
env.Append(CPPFLAGS=['-D_3D_DISABLED'])
if (env['gdscript'] == 'yes'):
env.Append(CPPFLAGS=['-DGDSCRIPT_ENABLED'])
if (env['disable_advanced_gui'] == 'yes'):
env.Append(CPPFLAGS=['-DADVANCED_GUI_DISABLED'])
if (env['minizip'] == 'yes'):
env.Append(CPPFLAGS=['-DMINIZIP_ENABLED'])
if (env['xml'] == 'yes'):
env.Append(CPPFLAGS=['-DXML_ENABLED'])
if (env['verbose'] == 'no'):
methods.no_verbose(sys, env)
scons_cache_path = os.environ.get("SCONS_CACHE")
if scons_cache_path != None:
CacheDir(scons_cache_path)
print("Scons cache enabled... (path: '" + scons_cache_path + "')")
Export('env')
# build subdirs, the build order is dependent on link order.
SConscript("core/SCsub")
SConscript("servers/SCsub")
SConscript("scene/SCsub")
SConscript("editor/SCsub")
SConscript("drivers/SCsub")
SConscript("modules/SCsub")
SConscript("main/SCsub")
SConscript("platform/" + selected_platform + "/SCsub") # build selected platform
# Microsoft Visual Studio Project Generation
if (env['vsproj']) == "yes":
env['CPPPATH'] = [Dir(path) for path in env['CPPPATH']]
methods.generate_vs_project(env, env['vsproj_jobs'])
else:
print("No valid target platform selected.")
print("The following were detected:")
for x in platform_list:
print("\t" + x)
print("\nPlease run scons again with argument: platform=<string>")
# The following only makes sense when the env is defined, and assumes it is
if 'env' in locals():
screen = sys.stdout
# Progress reporting is not available in non-TTY environments since it
# messes with the output (for example, when writing to a file)
show_progress = (env['progress'] and sys.stdout.isatty())
node_count = 0
node_count_max = 0
node_count_interval = 1
node_count_fname = str(env.Dir('#')) + '/.scons_node_count'
import time, math
class cache_progress:
# The default is 1 GB cache and 12 hours half life
def __init__(self, path = None, limit = 1073741824, half_life = 43200):
self.path = path
self.limit = limit
self.exponent_scale = math.log(2) / half_life
if env['verbose'] == 'yes' and path != None:
screen.write('Current cache limit is ' + self.convert_size(limit) + ' (used: ' + self.convert_size(self.get_size(path)) + ')\n')
self.delete(self.file_list())
def __call__(self, node, *args, **kw):
global node_count, node_count_max, node_count_interval, node_count_fname, show_progress
if show_progress:
# Print the progress percentage
node_count += node_count_interval
if (node_count_max > 0 and node_count <= node_count_max):
screen.write('\r[%3d%%] ' % (node_count * 100 / node_count_max))
screen.flush()
elif (node_count_max > 0 and node_count > node_count_max):
screen.write('\r[100%] ')
screen.flush()
else:
screen.write('\r[Initial build] ')
screen.flush()
def delete(self, files):
if len(files) == 0:
return
if env['verbose'] == 'yes':
# Utter something
screen.write('\rPurging %d %s from cache...\n' % (len(files), len(files) > 1 and 'files' or 'file'))
[os.remove(f) for f in files]
def file_list(self):
if self.path == None:
# Nothing to do
return []
# Gather a list of (filename, (size, atime)) within the
# cache directory
file_stat = [(x, os.stat(x)[6:8]) for x in glob.glob(os.path.join(self.path, '*', '*'))]
if file_stat == []:
# Nothing to do
return []
# Weight the cache files by size (assumed to be roughly
# proportional to the recompilation time) times an exponential
# decay since the ctime, and return a list with the entries
# (filename, size, weight).
current_time = time.time()
file_stat = [(x[0], x[1][0], (current_time - x[1][1])) for x in file_stat]
# Sort by the most resently accessed files (most sensible to keep) first
file_stat.sort(key=lambda x: x[2])
# Search for the first entry where the storage limit is
# reached
sum, mark = 0, None
for i,x in enumerate(file_stat):
sum += x[1]
if sum > self.limit:
mark = i
break
if mark == None:
return []
else:
return [x[0] for x in file_stat[mark:]]
def convert_size(self, size_bytes):
if size_bytes == 0:
return "0 bytes"
size_name = ("bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
i = int(math.floor(math.log(size_bytes, 1024)))
p = math.pow(1024, i)
s = round(size_bytes / p, 2)
return "%s %s" % (int(s) if i == 0 else s, size_name[i])
def get_size(self, start_path = '.'):
total_size = 0
for dirpath, dirnames, filenames in os.walk(start_path):
for f in filenames:
fp = os.path.join(dirpath, f)
total_size += os.path.getsize(fp)
return total_size
def progress_finish(target, source, env):
global node_count, progressor
with open(node_count_fname, 'w') as f:
f.write('%d\n' % node_count)
progressor.delete(progressor.file_list())
try:
with open(node_count_fname) as f:
node_count_max = int(f.readline())
except:
pass
cache_directory = os.environ.get("SCONS_CACHE")
# Simple cache pruning, attached to SCons' progress callback. Trim the
# cache directory to a size not larger than cache_limit.
cache_limit = float(os.getenv("SCONS_CACHE_LIMIT", 1024)) * 1024 * 1024
progressor = cache_progress(cache_directory, cache_limit)
Progress(progressor, interval = node_count_interval)
progress_finish_command = Command('progress_finish', [], progress_finish)
AlwaysBuild(progress_finish_command)
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