[libcxx][libunwind][libcxxabi] How to pass multiple compilation options to -DLIBCXX_ADDITIONAL_COMPILE_FLAGS ?

[trcrsired]

i want to pass "-fwasm-exceptions -D_REENTRANT" for example. don't know how to pass it

[trcrsired]

WebAssembly/wasi-libc#545

[ldionne]

From https://libcxx.llvm.org/VendorDocumentation.html#cmdoption-arg-LIBCXX-LIBCXXABI-LIBUNWIND-_ADDITIONAL_COMPILE_FLAGS-STRING:

Additional compile flags to use when building the runtimes. This should be a CMake ;-delimited list of individual compiler options to use. For options that must be passed as-is to the compiler without deduplication (e.g. -Xclang -foo option groups), consider using SHELL: as documented here.

So, for example, you'd pass -DLIBCXX_ADDITIONAL_COMPILE_FLAGS="-fwasm-exceptions;-D_REENTRANT".

[trcrsired]

ty ty