if ENV['ANAL'] or ENV['DOMAIN'] =~ /zenspider/ then
    builder.add_compile_flags "-Wall"
    builder.add_compile_flags "-W"
    builder.add_compile_flags "-Wpointer-arith"
    builder.add_compile_flags "-Wcast-qual"
    builder.add_compile_flags "-Wcast-align"
    builder.add_compile_flags "-Wwrite-strings"
    builder.add_compile_flags "-Wmissing-noreturn"
    builder.add_compile_flags "-Wno-long-long"

    # NOTE: this flag doesn't work w/ gcc 2.95.x - the FreeBSD default
    # builder.add_compile_flags "-Wno-strict-aliasing"
    # ruby.h screws these up hardcore:
    # builder.add_compile_flags "-Wundef"
    # builder.add_compile_flags "-Wconversion"
    # builder.add_compile_flags "-Wstrict-prototypes"
    # builder.add_compile_flags "-Wmissing-prototypes"
    # builder.add_compile_flags "-Wsign-compare"
end