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Support using LLVM's libunwind as the unwinder implementation

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This avoids the dependency on host libraries such as libgcc_s which
may be undesirable in some deployment environments where these aren't
available.
This commit is contained in:
Petr Hosek 2019-03-10 19:27:59 -07:00
parent f8673e0ad8
commit 86d1678403
9 changed files with 89 additions and 2 deletions
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2
src/bootstrap/configure.py
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@ -68,6 +68,8 @@ o("cflags", "llvm.cflags", "build LLVM with these extra compiler flags")
o("cxxflags", "llvm.cxxflags", "build LLVM with these extra compiler flags")
o("ldflags", "llvm.ldflags", "build LLVM with these extra linker flags")
o("llvm-libunwind", "rust.llvm_libunwind", "use LLVM libunwind")
# Optimization and debugging options. These may be overridden by the release
# channel, etc.
o("optimize", "rust.optimize", "build optimized rust code")