diff options
Diffstat (limited to 'SConstruct')
| -rw-r--r-- | SConstruct | 73 |
1 files changed, 36 insertions, 37 deletions
diff --git a/SConstruct b/SConstruct index ce586010f4..200e8e5984 100644 --- a/SConstruct +++ b/SConstruct @@ -170,7 +170,7 @@ opts.Add(EnumVariable("arch", "CPU architecture", "auto", ["auto"] + architectur opts.Add(EnumVariable("float", "Floating-point precision", "32", ("32", "64"))) opts.Add(EnumVariable("optimize", "Optimization type", "speed", ("speed", "size", "none"))) opts.Add(BoolVariable("production", "Set defaults to build Godot for use in production", False)) -opts.Add(BoolVariable("use_lto", "Use link-time optimization", False)) +opts.Add(EnumVariable("lto", "Link-time optimization (for production buids)", "none", ("none", "auto", "thin", "full"))) # Components opts.Add(BoolVariable("deprecated", "Enable compatibility code for deprecated and removed features", True)) @@ -438,35 +438,6 @@ if selected_platform in platform_list: ) env.SetOption("num_jobs", safer_cpu_count) - # 'dev' and 'production' are aliases to set default options if they haven't been set - # manually by the user. - if env["dev"]: - env["verbose"] = methods.get_cmdline_bool("verbose", True) - env["warnings"] = ARGUMENTS.get("warnings", "extra") - env["werror"] = methods.get_cmdline_bool("werror", True) - if env["tools"]: - env["tests"] = methods.get_cmdline_bool("tests", True) - if env["production"]: - env["use_static_cpp"] = methods.get_cmdline_bool("use_static_cpp", True) - env["use_lto"] = methods.get_cmdline_bool("use_lto", True) - env["debug_symbols"] = methods.get_cmdline_bool("debug_symbols", False) - if not env["tools"] and env["target"] == "debug": - print( - "WARNING: Requested `production` build with `tools=no target=debug`, " - "this will give you a full debug template (use `target=release_debug` " - "for an optimized template with debug features)." - ) - if env.msvc: - print( - "WARNING: For `production` Windows builds, you should use MinGW with GCC " - "or Clang instead of Visual Studio, as they can better optimize the " - "GDScript VM in a very significant way. MSVC LTO also doesn't work " - "reliably for our use case." - "If you want to use MSVC nevertheless for production builds, set " - "`debug_symbols=no use_lto=no` instead of the `production=yes` option." - ) - Exit(255) - env.extra_suffix = "" if env["extra_suffix"] != "": @@ -489,19 +460,42 @@ if selected_platform in platform_list: env["LINKFLAGS"] = "" env.Append(LINKFLAGS=str(LINKFLAGS).split()) - # Platform specific flags + # Platform specific flags. + # These can sometimes override default options. flag_list = platform_flags[selected_platform] for f in flag_list: if not (f[0] in ARGUMENTS) or ARGUMENTS[f[0]] == "auto": # Allow command line to override platform flags env[f[0]] = f[1] - # Must happen after the flags' definition, so that they can be used by platform detect + # 'dev' and 'production' are aliases to set default options if they haven't been + # set manually by the user. + # These need to be checked *after* platform specific flags so that different + # default values can be set (e.g. to keep LTO off for `production` on some platforms). + if env["dev"]: + env["verbose"] = methods.get_cmdline_bool("verbose", True) + env["warnings"] = ARGUMENTS.get("warnings", "extra") + env["werror"] = methods.get_cmdline_bool("werror", True) + if env["tools"]: + env["tests"] = methods.get_cmdline_bool("tests", True) + if env["production"]: + env["use_static_cpp"] = methods.get_cmdline_bool("use_static_cpp", True) + env["debug_symbols"] = methods.get_cmdline_bool("debug_symbols", False) + # LTO "auto" means we handle the preferred option in each platform detect.py. + env["lto"] = ARGUMENTS.get("lto", "auto") + if not env["tools"] and env["target"] == "debug": + print( + "WARNING: Requested `production` build with `tools=no target=debug`, " + "this will give you a full debug template (use `target=release_debug` " + "for an optimized template with debug features)." + ) + + # Must happen after the flags' definition, as configure is when most flags + # are actually handled to change compile options, etc. detect.configure(env) - print( - 'Building for platform "%s", architecture "%s", %s, target "%s".' - % (selected_platform, env["arch"], "editor" if env["tools"] else "template", env["target"]) - ) + # Needs to happen after configure to handle "auto". + if env["lto"] != "none": + print("Using LTO: " + env["lto"]) # Set our C and C++ standard requirements. # C++17 is required as we need guaranteed copy elision as per GH-36436. @@ -517,6 +511,11 @@ if selected_platform in platform_list: # We apply it to CCFLAGS (both C and C++ code) in case it impacts C features. env.Prepend(CCFLAGS=["/std:c++17"]) + print( + 'Building for platform "%s", architecture "%s", %s, target "%s".' + % (selected_platform, env["arch"], "editor" if env["tools"] else "template", env["target"]) + ) + # Enforce our minimal compiler version requirements cc_version = methods.get_compiler_version(env) or { "major": None, @@ -735,7 +734,7 @@ if selected_platform in platform_list: env.module_list = modules_enabled methods.sort_module_list(env) - methods.update_version(env.module_version_string) + methods.generate_version_header(env.module_version_string) env["PROGSUFFIX"] = suffix + env.module_version_string + env["PROGSUFFIX"] env["OBJSUFFIX"] = suffix + env["OBJSUFFIX"] |