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Merge pull request #57806 from akien-mga/scons-gotta-go-fast

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Rémi Verschelde 2022-02-09 09:14:17 +01:00 committed by GitHub
parent d435c51cda d4553c5126
commit 3cb9dc78d6
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1 changed files with 13 additions and 1 deletions
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14
SConstruct
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@ -179,9 +179,10 @@ opts.Add(BoolVariable("use_volk", "Use the volk library to load the Vulkan loade
# Advanced options
opts.Add(BoolVariable("dev", "If yes, alias for verbose=yes warnings=extra werror=yes", False))
opts.Add(BoolVariable("progress", "Show a progress indicator during compilation", True))
opts.Add(BoolVariable("tests", "Build the unit tests", False))
opts.Add(BoolVariable("fast_unsafe", "Enable unsafe options for faster rebuilds", False))
opts.Add(BoolVariable("verbose", "Enable verbose output for the compilation", False))
opts.Add(BoolVariable("progress", "Show a progress indicator during compilation", True))
opts.Add(EnumVariable("warnings", "Level of compilation warnings", "all", ("extra", "all", "moderate", "no")))
opts.Add(BoolVariable("werror", "Treat compiler warnings as errors", False))
opts.Add("extra_suffix", "Custom extra suffix added to the base filename of all generated binary files", "")
@ -360,6 +361,17 @@ if env_base["target"] == "debug":
# working on the engine itself.
env_base.Append(CPPDEFINES=["DEV_ENABLED"])
# SCons speed optimization controlled by the `fast_unsafe` option, which provide
# more than 10 s speed up for incremental rebuilds.
# Unsafe as they reduce the certainty of rebuilding all changed files, so it's
# enabled by default for `debug` builds, and can be overridden from command line.
# Ref: https://github.com/SCons/scons/wiki/GoFastButton
if methods.get_cmdline_bool("fast_unsafe", env_base["target"] == "debug"):
# Renamed to `content-timestamp` in SCons >= 4.2, keeping MD5 for compat.
env_base.Decider("MD5-timestamp")
env_base.SetOption("implicit_cache", 1)
env_base.SetOption("max_drift", 60)
if env_base["use_precise_math_checks"]:
env_base.Append(CPPDEFINES=["PRECISE_MATH_CHECKS"])