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authorGuanqun Lu <guanqun.lu@gmail.com>2019-10-24 23:41:48 +0800
committerGuanqun Lu <guanqun.lu@gmail.com>2019-10-24 23:41:48 +0800
commit9adea6177773b992fcdf7b1df26dd527cceba40d (patch)
tree0419761b1e9a0e142fafe41bea666db228f0872e /config.toml.example
parent4b42e919d640f7c714a7e87c91b4f3a9089552d0 (diff)
downloadrust-9adea6177773b992fcdf7b1df26dd527cceba40d.tar.gz
rust-9adea6177773b992fcdf7b1df26dd527cceba40d.zip
add a WARNING to rust.optimize option in config.toml.example
Diffstat (limited to 'config.toml.example')
-rw-r--r--config.toml.example7
1 files changed, 3 insertions, 4 deletions
diff --git a/config.toml.example b/config.toml.example
index 848147c2974..0124583e41c 100644
--- a/config.toml.example
+++ b/config.toml.example
@@ -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