ac_add_options --disable-compile-environment

# In case mozconfig.cache was already included
unset CCACHE
unset SCCACHE_VERBOSE_STATS
# In case it wasn't
NO_CACHE=1

# Override any toolchain defines we've inherited from other mozconfigs.
unset CC
unset CXX
unset HOST_CC
unset HOST_CXX
unset RUSTC
unset CARGO
unset MAKECAB
unset TOOLCHAIN_PREFIX
unset BINDGEN_CFLAGS
unset LLVM_CONFIG