bpo-30947: Update libexpat from 2.2.1 to 2.2.3 by vstinner · Pull Request #3106 · python/cpython (original) (raw)

#if !defined(HAVE_GETRANDOM) && !defined(HAVE_SYSCALL_GETRANDOM) \
    && !defined(HAVE_ARC4RANDOM_BUF) && !defined(HAVE_ARC4RANDOM) \
    && !defined(XML_DEV_URANDOM) \
    && !defined(_WIN32) \
    && !defined(XML_POOR_ENTROPY)
# error  \
    You do not have support for any sources of high quality entropy \
    enabled.  For end user security, that is probably not what you want. \
    \
    Your options include: \
      * Linux + glibc >=2.25 (getrandom): HAVE_GETRANDOM, \
      * Linux + glibc <2.25 (syscall SYS_getrandom): HAVE_SYSCALL_GETRANDOM, \
      * BSD / macOS >=10.7 (arc4random_buf): HAVE_ARC4RANDOM_BUF, \
      * BSD / macOS <10.7 (arc4random): HAVE_ARC4RANDOM, \
      * libbsd (arc4random_buf): HAVE_ARC4RANDOM_BUF + HAVE_LIBBSD, \
      * libbsd (arc4random): HAVE_ARC4RANDOM + HAVE_LIBBSD, \
      * Linux / BSD / macOS (/dev/urandom): XML_DEV_URANDOM \
      * Windows (RtlGenRandom): _WIN32. \
    \
    If insist on not using any of these, bypass this error by defining \
    XML_POOR_ENTROPY; you have been warned. \
    \
    For CMake, one way to pass the define is: \
        cmake -DCMAKE_C_FLAGS="-pipe -O2 -DHAVE_SYSCALL_GETRANDOM" . \
    \
    If you have reasons to patch this detection code away or need changes \
    to the build system, please open a bug.  Thank you!
#endif