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more readme formatting

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Andrew Kelley 2016-01-15 17:18:03 -07:00
parent 39c1348862
commit 74b1665586
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@ -100,9 +100,12 @@ undefined reference to `_ZNK4llvm17SubtargetFeatures9getStringB5cxx11Ev'
undefined reference to `llvm::SubtargetFeatures::getString() const' undefined reference to `llvm::SubtargetFeatures::getString() const'
``` ```
This is because of [C++'s Dual ABI](https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html). This is because of
[C++'s Dual ABI](https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html).
Most likely LLVM was compiled with one compiler while Zig was compiled with a Most likely LLVM was compiled with one compiler while Zig was compiled with a
different one, for example GCC vs clang. different one, for example GCC vs clang.
To fix this, compile Zig with the same compiler that LLVM was compiled with, or To fix this, you have 2 options:
add `-DZIG_LLVM_OLD_CXX_ABI=yes` to the cmake configure line.
* Compile Zig with the same compiler that LLVM was compiled with.
* Add `-DZIG_LLVM_OLD_CXX_ABI=yes` to the cmake configure line.