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SCons : Add "scu_limit" argument

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"scu_limit" allows specifying the maximum number of includes in a single SCU file (translation unit). A lower limit (e.g. 8) uses less RAM during compilation, but may be slower to compile.
This commit is contained in:
lawnjelly
2023-07-02 19:23:28 +01:00
parent 46424488ed
commit 7b830ebdc1
2 changed files with 23 additions and 12 deletions
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12
SConstruct
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@ -220,6 +220,7 @@ opts.Add(
)
opts.Add(BoolVariable("use_precise_math_checks", "Math checks use very precise epsilon (debug option)", False))
opts.Add(BoolVariable("scu_build", "Use single compilation unit build", False))
opts.Add("scu_limit", "Max includes per SCU file when using scu_build (determines RAM use)", "0")
# Thirdparty libraries
opts.Add(BoolVariable("builtin_certs", "Use the built-in SSL certificates bundles", True))
@ -549,7 +550,16 @@ if selected_platform in platform_list:
# Run SCU file generation script if in a SCU build.
if env["scu_build"]:
methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], env_base.dev_build == False))
max_includes_per_scu = 8
if env_base.dev_build == True:
max_includes_per_scu = 1024
read_scu_limit = int(env["scu_limit"])
read_scu_limit = max(0, min(read_scu_limit, 1024))
if read_scu_limit != 0:
max_includes_per_scu = read_scu_limit
methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], max_includes_per_scu))
# Must happen after the flags' definition, as configure is when most flags
# are actually handled to change compile options, etc.