Re: Building net-snmp, is not linking against OpenSSL

Daniel,

The crypt and ssl libraries are statically linked - by default and 
probably for a reason - and so won't show up in the ldd output.  Try 
linking them explicitly with -lcrypt -lssl when you build zabbix.

Rick

Daniel Lang wrote:
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> I am trying to build some monitoring software on Solaris that requires
> net-snmp.  It requires that net-snmp be built with the openssl package
> as it uses the various crypto functions available.
>
> I built net-snmp 5.3.1 from source with the options and have OpenSSL
> version 0.9.8d:
> - --with-mib-modules="host ucd-snmp/dlmod disman/event-mib ucd-snmp/diskio"
> - --with-openssl=/usr/local/ssl --with-sys-location="xxx"
> - --with-sys-contact="[email protected]" --with-default-snmp-version=3
> - --with-logfile="/var/log/net-snmp.log"
> - --with-persistent-directory="/var/lib/net-snmp"
> - --enable-ucd-snmp-compatibility --enable-shared --with-zlib
> - --with-transports="UDP TCP Unix Callback"
>
> I then tried to build the monitoring server, zabbix, but it failed when
> building the server with the following link errors:
>
> sqlclient -lm -lz    -lnetsnmp -lkvm -lresolv -lnsl -lkstat -lsocket
> Undefined                       first referenced
>  symbol                             in file
> HMAC                                /usr/local/lib/libnetsnmp.so
> DES_cbc_encrypt                     /usr/local/lib/libnetsnmp.so
> AES_cfb128_encrypt                  /usr/local/lib/libnetsnmp.so
> EVP_DigestFinal_ex                  /usr/local/lib/libnetsnmp.so
> SSLeay                              /usr/local/lib/libnetsnmp.so
> DES_key_sched                       /usr/local/lib/libnetsnmp.so
> EVP_DigestInit                      /usr/local/lib/libnetsnmp.so
> EVP_MD_CTX_cleanup                  /usr/local/lib/libnetsnmp.so
> RAND_bytes                          /usr/local/lib/libnetsnmp.so
> EVP_DigestUpdate                    /usr/local/lib/libnetsnmp.so
> EVP_md5                             /usr/local/lib/libnetsnmp.so
> EVP_sha1                            /usr/local/lib/libnetsnmp.so
> EVP_DigestFinal                     /usr/local/lib/libnetsnmp.so
> AES_set_encrypt_key                 /usr/local/lib/libnetsnmp.so
> DES_ncbc_encrypt                    /usr/local/lib/libnetsnmp.so
> EVP_MD_CTX_init                     /usr/local/lib/libnetsnmp.so
> ld: fatal: Symbol referencing errors. No output written to zabbix_server
> collect2: ld returned 1 exit status
>
> I ran ldd against libnetsnmp and it returns:
>
> $ldd /usr/local/lib/libnetsnmp.so.10.0.1
>         libc.so.1 =>     /lib/libc.so.1
>         libm.so.2 =>     /lib/libm.so.2
>         /platform/SUNW,Sun-Blade-100/lib/libc_psr.so.1
>
> So it appears that the net-snmp libraries are not properly linking
> against libcrypt and other OpenSSL libraries.  I checked the net-snmp
> libraries on a Red Hat server and the rpm built library is linked
> properly against OpenSSL.  I suspect that I am missing a configure
> option and/or I need to edit a Makefile.  The reason is that on the same
> Red Hat server, when I build net-snmp from source, the net-snmp
> libraries still do not link against OpenSSL.  It is something I am doing
> wrong.
>
> I found a reference to something similar in the README.solaris file,
> regarding OpenSSL and crle.  I followed the instructions regarding the
> crle settings, but it does not seem to have changed what the libraries
> are linked against.
>
> I have found similar problems through google searches, but everyone
> seems to fix it but didn't explain what they did to fix it.  I have
> tried several different configure options, but I can't find the correct
> configure flags.  I am hoping someone quickly recognizes what I am
> missing or can point me to documentation I have missed.
>
> Thank you,
>
> Dan Lang
>
> - --
> Daniel Lang
> UNIX Systems Administrator
> Enterprise Server Technologies
> Computing and Telecommunications Services
> Kansas State University
> 785.532.6264
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Get stuff done quickly with pre-integrated technology to make your job easier.
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