[env] # Prevent cc-rs from injecting macOS-specific flags (e.g. -arch arm64, -mmacosx-version-min) # into the RISC-V cross-compiler when building C dependencies (e.g. ring) for the guest target. # Without this, builds fail on macOS 26+ with the risc0 C++ toolchain. CFLAGS_riscv32im_risc0_zkvm_elf = "-march=rv32im -nostdlib"