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add a WARNING to rust.optimize option in config.toml.example

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This commit is contained in:
Guanqun Lu 2019-10-24 23:41:48 +08:00
parent 4b42e919d6
commit 9adea61777
1 changed files with 3 additions and 4 deletions
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7
config.toml.example
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@ -258,10 +258,9 @@
[rust]
# Whether or not to optimize the compiler and standard library.
#
# Note: the slowness of the non optimized compiler compiling itself usually
# outweighs the time gains in not doing optimizations, therefore a
# full bootstrap takes much more time with `optimize` set to false.
# WARNING: Building with optimize = false is NOT SUPPORTED. Due to bootstrapping,
# building without optimizations takes much longer than optimizing. Further, some platforms
# fail to build without this optimization (c.f. #65352).
#optimize = true
# Indicates that the build should be configured for debugging Rust. A