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Rollup merge of #60983 - petrhosek:libunwind-no-exceptions, r=alexcrichton 

Set -funwind-tables and -fno-exceptions unconditionally for LLVM's libunwind

These are required otherwise libunwind will end up with undefined
references to __gxx_personality_v0 which is provided by C++ ABI
library and that's undesirable.
This commit is contained in:
Mazdak Farrokhzad 2019-05-20 23:03:10 +02:00 committed by GitHub
parent 44b5d4deb6 d8f764bbbf
commit 0c97800f93
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1 changed files with 2 additions and 5 deletions
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7
src/libunwind/build.rs
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@ -67,13 +67,10 @@ mod llvm_libunwind {
cfg.flag("-std=c99");
cfg.flag("-std=c++11");
cfg.flag("-nostdinc++");
if cfg.is_flag_supported("-funwind-tables").unwrap_or_default() &&
cfg.is_flag_supported("-fno-exceptions").unwrap_or_default() {
cfg.flag("-funwind-tables");
cfg.flag("-fno-exceptions");
}
cfg.flag("-fno-exceptions");
cfg.flag("-fno-rtti");
cfg.flag("-fstrict-aliasing");
cfg.flag("-funwind-tables");
}
let mut unwind_sources = vec![