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virtualx-engine/SConstruct
Gary Oberbrunner d1318ee12c Enable SCons to autodetect Windows MSVC compiler 
SCons has good compiler detection logic for MSVC compilers. Up to now,
Godot hasn't used it; it depends on passed-in OS environment vars from
a specific Visual Studio cmd.exe windows. This makes it harder to
build from a msys or cygwin shell.

This change allows SCons to autodetect Visual Studio unless it sees
VCINSTALLDIR in the os.environ. It also adds a 'msvc_version' arg for
manual specification of compiler version, and uses the existing 'bits'
arg to specify the target architecture. More detail could be added as
desired. It also adds 'use_mingw' to always use mingw, even if Visual
Studio is installed. That uses the existing mingw setup logic.

If people are used to building Godot in a Visual Studio cmd window,
this should not change the behavior in that case, since VCINSTALLDIR
will be set in those windows. (However, note that you could now unset
that var and build with any other MSVC version or target arch, even in
that window.)

I refactored much of platform/windows/detect.py during this, to
simplify and clarify the logic. I also cleaned up a bunch of env var
settings in windows/detect.py and SConstruct to use modern SCons
idioms and simplify things.

I suspect this will also enable using the Intel compiler on Windows,
though that hasn't been tested.
2018-03-13 09:51:05 -04:00

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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
# moved below to compensate with module version string
# 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 = []
platform_apis = []
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 + "/api/api.cpp")):
platform_apis.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 platform_arg == "android" or platform_arg == "javascript" or ARGUMENTS.get("use_mingw", False):
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
env_base.split_modules = False
env_base.module_version_string = ""
env_base.msvc = 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_module_version_string = methods.add_module_version_string
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["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(EnumVariable('bits', "Target platform bits", 'default', ('default', '32', '64')))
opts.Add('p', "Platform (alias for 'platform')", '')
opts.Add('platform', "Target platform (%s)" % ('|'.join(platform_list), ), '')
opts.Add(EnumVariable('target', "Compilation target", 'debug', ('debug', 'release_debug', 'release')))
opts.Add(BoolVariable('tools', "Build the tools a.k.a. the Godot editor", True))
opts.Add(BoolVariable('use_lto', 'Use linking time optimization', False))
# Components
opts.Add(BoolVariable('deprecated', "Enable deprecated features", True))
opts.Add(BoolVariable('gdscript', "Build GDSCript support", True))
opts.Add(BoolVariable('minizip', "Build minizip archive support", True))
opts.Add(BoolVariable('xaudio2', "XAudio2 audio driver", False))
opts.Add(BoolVariable('xml', "XML format support for resources", True))
# Advanced options
opts.Add(BoolVariable('disable_3d', "Disable 3D nodes for smaller executable", False))
opts.Add(BoolVariable('disable_advanced_gui', "Disable advanced 3D gui nodes and behaviors", False))
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(BoolVariable('verbose', "Enable verbose output for the compilation", False))
opts.Add(BoolVariable('vsproj', "Generate Visual Studio Project", False))
opts.Add(EnumVariable('warnings', "Set the level of warnings emitted during compilation", 'no', ('extra', 'all', 'moderate', 'no')))
opts.Add(BoolVariable('progress', "Show a progress indicator during build", True))
opts.Add(BoolVariable('dev', "If yes, alias for verbose=yes warnings=all", False))
opts.Add(EnumVariable('macports_clang', "Build using clang from MacPorts", 'no', ('no', '5.0', 'devel')))
# Thirdparty libraries
opts.Add(BoolVariable('builtin_bullet', "Use the builtin bullet library", True))
opts.Add(BoolVariable('builtin_enet', "Use the builtin enet library", True))
opts.Add(BoolVariable('builtin_freetype', "Use the builtin freetype library", True))
opts.Add(BoolVariable('builtin_libogg', "Use the builtin libogg library", True))
opts.Add(BoolVariable('builtin_libpng', "Use the builtin libpng library", True))
opts.Add(BoolVariable('builtin_libtheora', "Use the builtin libtheora library", True))
opts.Add(BoolVariable('builtin_libvorbis', "Use the builtin libvorbis library", True))
opts.Add(BoolVariable('builtin_libvpx', "Use the builtin libvpx library", True))
opts.Add(BoolVariable('builtin_libwebp', "Use the builtin libwebp library", True))
opts.Add(BoolVariable('builtin_mbedtls', "Use the builtin mbedTLS library", True))
opts.Add(BoolVariable('builtin_opus', "Use the builtin opus library", True))
opts.Add(BoolVariable('builtin_pcre2', "Use the builtin pcre2 library)", True))
opts.Add(BoolVariable('builtin_recast', "Use the builtin recast library", True))
opts.Add(BoolVariable('builtin_squish', "Use the builtin squish library", True))
opts.Add(BoolVariable('builtin_thekla_atlas', "Use the builtin thekla_altas library", True))
opts.Add(BoolVariable('builtin_zlib', "Use the builtin zlib library", True))
opts.Add(BoolVariable('builtin_zstd', "Use the builtin zstd library", True))
opts.Add(BoolVariable('no_editor_splash', "Don't use the custom splash screen for the editor", False))
# Compilation environment setup
opts.Add("CXX", "C++ compiler")
opts.Add("CC", "C compiler")
opts.Add("LINK", "Linker")
opts.Add("CCFLAGS", "Custom flags for both the C and C++ compilers")
opts.Add("CXXFLAGS", "Custom flags for the C++ compiler")
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)
for x in module_list:
module_enabled = True
tmppath = "./modules/" + x
sys.path.append(tmppath)
import config
enabled_attr = getattr(config, "is_enabled", None)
if (callable(enabled_attr) and not config.is_enabled()):
module_enabled = False
sys.path.remove(tmppath)
sys.modules.pop('config')
opts.Add(BoolVariable('module_' + x + '_enabled', "Enable module '%s'" % (x, ), module_enabled))
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
env_base.platform_apis = platform_apis
"""
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(CPPDEFINES=['DEBUG_MEMORY_ALLOC', 'SCI_NAMESPACE'])
if (env_base['no_editor_splash']):
env_base.Append(CPPDEFINES=['NO_EDITOR_SPLASH'])
if not env_base['deprecated']:
env_base.Append(CPPDEFINES=['DISABLE_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']:
env["warnings"] = "all"
env['verbose'] = True
if env['vsproj']:
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('\\\\', '/')
if os.path.isfile(basename + ".h"):
env.vs_incs = env.vs_incs + [basename + ".h"]
elif os.path.isfile(basename + ".hpp"):
env.vs_incs = env.vs_incs + [basename + ".hpp"]
if os.path.isfile(basename + ".c"):
env.vs_srcs = env.vs_srcs + [basename + ".c"]
elif os.path.isfile(basename + ".cpp"):
env.vs_srcs = env.vs_srcs + [basename + ".cpp"]
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)
if (env["warnings"] == 'yes'):
print("WARNING: warnings=yes is deprecated; assuming warnings=all")
if env.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'])
# Set exception handling model to avoid warnings caused by Windows system headers.
env.Append(CCFLAGS=['/EHsc'])
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.Append(CCFLAGS=['-Werror=return-type'])
#env['platform_libsuffix'] = env['LIBSUFFIX']
suffix = "." + selected_platform
if (env["target"] == "release"):
if env["tools"]:
print("Tools can only be built with targets 'debug' and 'release_debug'.")
sys.exit(255)
suffix += ".opt"
env.Append(CPPDEFINES=['NDEBUG'])
elif (env["target"] == "release_debug"):
if env["tools"]:
suffix += ".opt.tools"
else:
suffix += ".opt.debug"
else:
if env["tools"]:
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
sys.path.remove("./platform/" + selected_platform)
sys.modules.pop('detect')
env.module_list = []
env.doc_class_path = {}
for x in module_list:
if not env['module_' + x + '_enabled']:
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)
try:
doc_classes = config.get_doc_classes()
doc_path = config.get_doc_path()
for c in doc_classes:
env.doc_class_path[c] = "modules/" + x + "/" + doc_path
except:
pass
sys.path.remove(tmppath)
sys.modules.pop('config')
methods.update_version(env.module_version_string)
env["PROGSUFFIX"] = suffix + env.module_version_string + env["PROGSUFFIX"]
env["OBJSUFFIX"] = suffix + env["OBJSUFFIX"]
env["LIBSUFFIX"] = suffix + env["LIBSUFFIX"]
env["SHLIBSUFFIX"] = suffix + env["SHLIBSUFFIX"]
if (env.use_ptrcall):
env.Append(CPPDEFINES=['PTRCALL_ENABLED'])
# to test 64 bits compiltion
# env.Append(CPPFLAGS=['-m64'])
if env['tools']:
env.Append(CPPDEFINES=['TOOLS_ENABLED'])
if env['disable_3d']:
env.Append(CPPDEFINES=['_3D_DISABLED'])
if env['gdscript']:
env.Append(CPPDEFINES=['GDSCRIPT_ENABLED'])
if env['disable_advanced_gui']:
env.Append(CPPDEFINES=['ADVANCED_GUI_DISABLED'])
if env['minizip']:
env.Append(CPPDEFINES=['MINIZIP_ENABLED'])
if env['xml']:
env.Append(CPPDEFINES=['XML_ENABLED'])
if not env['verbose']:
methods.no_verbose(sys, env)
if (not env["platform"] == "server"): # FIXME: detect GLES3
env.Append( BUILDERS = { 'GLES3_GLSL' : env.Builder(action = methods.build_gles3_headers, suffix = 'glsl.gen.h', src_suffix = '.glsl') } )
env.Append( BUILDERS = { 'GLES2_GLSL' : env.Builder(action = methods.build_gles2_headers, suffix = 'glsl.gen.h', src_suffix = '.glsl') } )
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("platform/SCsub")
SConscript("modules/SCsub")
SConscript("main/SCsub")
SConscript("platform/" + selected_platform + "/SCsub") # build selected platform
# Microsoft Visual Studio Project Generation
if env['vsproj']:
env['CPPPATH'] = [Dir(path) for path in env['CPPPATH']]
methods.generate_vs_project(env, GetOption("num_jobs"))
methods.generate_cpp_hint_file("cpp.hint")
# Check for the existence of headers
conf = Configure(env)
if ("check_c_headers" in env):
for header in env["check_c_headers"]:
if (conf.CheckCHeader(header[0])):
env.AppendUnique(CPPDEFINES=[header[1]])
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>")
sys.exit(255)
screen = sys.stdout
node_count = 0
node_count_max = 0
node_count_interval = 1
if ('env' in locals()):
node_count_fname = str(env.Dir('#')) + '/.scons_node_count'
# Progress reporting is not available in non-TTY environments since it
# messes with the output (for example, when writing to a file)
if sys.stdout.isatty():
show_progress = env['progress']
else:
show_progress = False
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'] 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']:
# 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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