title: SVN / Apache Issue undefined symbol: apr_crypto_block_cleanup
body: <p>I am using AlmaLinux 8 with svn/apache.</p>
  <p>When trying to start my httpd service I am given the following status message:</p>
  <p><code>Aug 12 17:54:06 domain.tld httpd[495168]: httpd: Syntax error on line 132 of /etc/httpd/conf/httpd2.conf: Syntax error on line 1 of /etc/httpd/conf/extra/httpd-svn.conf: Cannot load /usr/lib/apache/mod_dav_svn.so into server: /usr/lib64/libsvn_subr-1.so.0: undefined symbol: apr_crypto_block_cleanup</code></p>
  <p>In the past, simply moving /usr/lib64/libsvn_subr-1.so.0 to /usr/lib64/libsvn_subr-1.so.0-old fixed the error but on this occasion (having updated dnf) this is not the case.</p>
  <p>Struggling because I have limited debugging opportunities so if anything at all can be provided to help debug that would suffice as an answer. the only output I can find suitable for me is below.</p>
  <pre><code>    linux-vdso.so.1 (0x00007ffd13835000)
      libsvn_repos-1.so.0 =&gt; /usr/lib64/libsvn_repos-1.so.0 (0x00007fb9de978000)
      libsvn_fs-1.so.0 =&gt; /usr/lib64/libsvn_fs-1.so.0 (0x00007fb9de76a000)
      libsvn_fs_fs-1.so.0 =&gt; /usr/lib64/libsvn_fs_fs-1.so.0 (0x00007fb9de512000)
      libsvn_fs_x-1.so.0 =&gt; /usr/lib64/libsvn_fs_x-1.so.0 (0x00007fb9de2ba000)
      libsvn_delta-1.so.0 =&gt; /usr/lib64/libsvn_delta-1.so.0 (0x00007fb9de09a000)
      libsvn_fs_util-1.so.0 =&gt; /usr/lib64/libsvn_fs_util-1.so.0 (0x00007fb9dde96000)
      libsvn_subr-1.so.0 =&gt; /usr/lib64/libsvn_subr-1.so.0 (0x00007fb9ddc02000)
      libaprutil-1.so.0 =&gt; /usr/lib/apache/libaprutil-1.so.0 (0x00007fb9dd9cd000)
      libapr-1.so.0 =&gt; /usr/lib/apache/libapr-1.so.0 (0x00007fb9dd788000)
      librt.so.1 =&gt; /usr/lib64/librt.so.1 (0x00007fb9dd580000)
      libcrypt.so.1 =&gt; /usr/lib64/libcrypt.so.1 (0x00007fb9dd357000)
      libexpat.so.1 =&gt; /usr/lib64/libexpat.so.1 (0x00007fb9dd11c000)
      libz.so.1 =&gt; /usr/lib64/libz.so.1 (0x00007fb9dcf05000)
      libdl.so.2 =&gt; /usr/lib64/libdl.so.2 (0x00007fb9dcd01000)
      libpthread.so.0 =&gt; /usr/lib64/libpthread.so.0 (0x00007fb9dcae1000)
      libc.so.6 =&gt; /usr/lib64/libc.so.6 (0x00007fb9dc71c000)
      libsqlite3.so.0 =&gt; /usr/lib64/libsqlite3.so.0 (0x00007fb9dc408000)
      libmagic.so.1 =&gt; /usr/lib64/libmagic.so.1 (0x00007fb9dc1e1000)
      liblz4.so.1 =&gt; /usr/lib64/liblz4.so.1 (0x00007fb9dbfc4000)
      libutf8proc.so.2 =&gt; /usr/lib64/libutf8proc.so.2 (0x00007fb9dbd7b000)
      /lib64/ld-linux-x86-64.so.2 (0x00007fb9dedea000)
      libm.so.6 =&gt; /usr/lib64/libm.so.6 (0x00007fb9db9f9000)
  </code></pre>
  <p>Currently svn is only served via svn hence I don't even have svn available at cli.</p>
  <p>Please help!</p>