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Merge pull request #100210 from hpvb/scons-use-md5-timestamp

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SCons: Unconditionally use `env.Decider("MD5-timestamp")`
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Thaddeus Crews
2024-12-10 14:16:08 -06:00
parent 25122e7dd3 04fff3fe0d
commit deb4c00f06
1 changed files with 7 additions and 2 deletions
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9
SConstruct
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@@ -501,14 +501,19 @@ else:
# Disable assert() for production targets (only used in thirdparty code). # Disable assert() for production targets (only used in thirdparty code).
env.Append(CPPDEFINES=["NDEBUG"]) env.Append(CPPDEFINES=["NDEBUG"])
# This is not part of fast_unsafe because the only downside it has compared to
# the default is that SCons won't mark files that were changed in the last second
# as different. This is unlikely to be a problem in any real situation as just booting
# up scons takes more than that time.
# Renamed to `content-timestamp` in SCons >= 4.2, keeping MD5 for compat.
env.Decider("MD5-timestamp")
# SCons speed optimization controlled by the `fast_unsafe` option, which provide # SCons speed optimization controlled by the `fast_unsafe` option, which provide
# more than 10 s speed up for incremental rebuilds. # more than 10 s speed up for incremental rebuilds.
# Unsafe as they reduce the certainty of rebuilding all changed files, so it's # 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. # enabled by default for `debug` builds, and can be overridden from command line.
# Ref: https://github.com/SCons/scons/wiki/GoFastButton # Ref: https://github.com/SCons/scons/wiki/GoFastButton
if methods.get_cmdline_bool("fast_unsafe", env.dev_build): if methods.get_cmdline_bool("fast_unsafe", env.dev_build):
# Renamed to `content-timestamp` in SCons >= 4.2, keeping MD5 for compat.
env.Decider("MD5-timestamp")
env.SetOption("implicit_cache", 1) env.SetOption("implicit_cache", 1)
env.SetOption("max_drift", 60) env.SetOption("max_drift", 60)