{
    "llvm-target": "i686-unknown-linux-gnu",
    "target-endian": "little",
    "target-pointer-width": "32",
    "os": "sel4",
    "env": "none",
    "arch": "x86",
    "linker-is-gnu": true,
    "executables": true,
    "pre-link-args": ["-m", "32"]
}

{
    "llvm-target": "i686-unknown-linux-gnu",
    "target-endian": "little",
    "target-pointer-width": "32",
    "os": "sel4",
    "env": "none",
    "arch": "x86",
    "linker-is-gnu": true,
    "executables": true,
    "pre-link-args": ["-m32"]
}
Use -m32, not incorrect -m 32
Use -m32, not incorrect -m 32