SSL: reasonable version for LibreSSL. LibreSSL defines OPENSSL_VERSION_NUMBER to 0x20000000L, but uses an old API derived from OpenSSL at the time LibreSSL forked. As a result, every version check we use to test for new API elements in newer OpenSSL versions requires an explicit check for LibreSSL. To reduce clutter, redefine OPENSSL_VERSION_NUMBER to 0x1000107fL if LibreSSL is used. The same is done by FreeBSD port of LibreSSL.

# Copyright (C) Nginx, Inc.


if [ $USE_THREADS = YES ]; then

    if [ "$NGX_PLATFORM" = win32 ]; then
        cat << END

$0: --with-threads is not supported on Windows

END
        exit 1
    fi

    have=NGX_THREADS . auto/have
    CORE_DEPS="$CORE_DEPS $THREAD_POOL_DEPS"
    CORE_SRCS="$CORE_SRCS $THREAD_POOL_SRCS"
    CORE_LIBS="$CORE_LIBS -lpthread"
fi