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  1. #1
    Join Date
    Oct 2008
    Posts
    2

    ou=abrnhlls,ou=us_est,ou=na,

    I'm new to using gcc and am trying to compile the search.c sample file and
    I get messages like this:

    search.c.text+0xc0): undefined reference to `ldap_set_option'

    I'm really not familiar with the tools, though I have been using the Java
    libraries on Windows for several years. I'm switching to SUSE for several
    projects and would like to start using C/C++ to do more of my work. The
    command I used and all of it's output are below. The machine is just a
    standard SUSE 10 install with the development tools added. Any help would
    be greatly appreciated.

    -ac.

    ac2:/opt/novell-cldap-devel-2007.02.16-1linux # gcc
    -I/opt/novell-cldap-devel-2007.02.16-1linux/include
    -L/opt/novell-cldap-devel-2007.02.16-1linux/lib search.c
    /tmp/ccK3WWXH.o: In function `main':
    search.c.text+0xc0): undefined reference to `ldap_set_option'
    search.c.text+0xdb): undefined reference to `ldap_set_option'
    search.c.text+0xed): undefined reference to `ldap_init'
    search.c.text+0x133): undefined reference to `ldap_simple_bind_s'
    search.c.text+0x147): undefined reference to `ldap_err2string'
    search.c.text+0x162): undefined reference to `ldap_unbind_s'
    search.c.text+0x1d2): undefined reference to `ldap_search_ext_s'
    search.c.text+0x1e6): undefined reference to `ldap_err2string'
    search.c.text+0x201): undefined reference to `ldap_msgfree'
    search.c.text+0x20c): undefined reference to `ldap_unbind_s'
    search.c.text+0x239): undefined reference to `ldap_sort_entries'
    search.c.text+0x24b): undefined reference to `ldap_first_entry'
    search.c.text+0x265): undefined reference to `ldap_get_dn'
    search.c.text+0x28c): undefined reference to `ldap_memfree'
    search.c.text+0x2a5): undefined reference to `ldap_first_attribute'
    search.c.text+0x2c6): undefined reference to `ldap_get_values'
    search.c.text+0x318): undefined reference to `ldap_value_free'
    search.c.text+0x323): undefined reference to `ldap_memfree'
    search.c.text+0x33c): undefined reference to `ldap_next_attribute'
    search.c.text+0x35c): undefined reference to `ber_free'
    search.c.text+0x36e): undefined reference to `ldap_next_entry'
    search.c.text+0x38d): undefined reference to `ldap_count_entries'
    search.c.text+0x3ae): undefined reference to `ldap_msgfree'
    search.c.text+0x3b9): undefined reference to `ldap_unbind_s'
    collect2: ld returned 1 exit status


  2. #2
    Join Date
    Oct 2008
    Posts
    2

    ou=abrnhlls,ou=us_est,ou=na,

    > I'm new to using gcc and am trying to compile the search.c sample file and
    > I get messages like this:
    >
    > search.c.text+0xc0): undefined reference to `ldap_set_option'
    >
    > I'm really not familiar with the tools, though I have been using the Java
    > libraries on Windows for several years. I'm switching to SUSE for several
    > projects and would like to start using C/C++ to do more of my work. The
    > command I used and all of it's output are below. The machine is just a
    > standard SUSE 10 install with the development tools added. Any help would
    > be greatly appreciated.
    >
    > -ac.
    >
    > ac2:/opt/novell-cldap-devel-2007.02.16-1linux # gcc
    > -I/opt/novell-cldap-devel-2007.02.16-1linux/include
    > -L/opt/novell-cldap-devel-2007.02.16-1linux/lib search.c
    > /tmp/ccK3WWXH.o: In function `main':
    > search.c.text+0xc0): undefined reference to `ldap_set_option'
    > search.c.text+0xdb): undefined reference to `ldap_set_option'
    > search.c.text+0xed): undefined reference to `ldap_init'
    > search.c.text+0x133): undefined reference to `ldap_simple_bind_s'
    > search.c.text+0x147): undefined reference to `ldap_err2string'
    > search.c.text+0x162): undefined reference to `ldap_unbind_s'
    > search.c.text+0x1d2): undefined reference to `ldap_search_ext_s'
    > search.c.text+0x1e6): undefined reference to `ldap_err2string'
    > search.c.text+0x201): undefined reference to `ldap_msgfree'
    > search.c.text+0x20c): undefined reference to `ldap_unbind_s'
    > search.c.text+0x239): undefined reference to `ldap_sort_entries'
    > search.c.text+0x24b): undefined reference to `ldap_first_entry'
    > search.c.text+0x265): undefined reference to `ldap_get_dn'
    > search.c.text+0x28c): undefined reference to `ldap_memfree'
    > search.c.text+0x2a5): undefined reference to `ldap_first_attribute'
    > search.c.text+0x2c6): undefined reference to `ldap_get_values'
    > search.c.text+0x318): undefined reference to `ldap_value_free'
    > search.c.text+0x323): undefined reference to `ldap_memfree'
    > search.c.text+0x33c): undefined reference to `ldap_next_attribute'
    > search.c.text+0x35c): undefined reference to `ber_free'
    > search.c.text+0x36e): undefined reference to `ldap_next_entry'
    > search.c.text+0x38d): undefined reference to `ldap_count_entries'
    > search.c.text+0x3ae): undefined reference to `ldap_msgfree'
    > search.c.text+0x3b9): undefined reference to `ldap_unbind_s'
    > collect2: ld returned 1 exit status
    >



    I changed the command to this:

    gcc -I/opt/novell-cldap-devel-2007.02.16-1linux/include -lldap search.c

    and I got a file called a.out that I was able to run and connect to my
    server; however, I don't understand why that works. In addition, how cna I
    be sure that the compiler is using the Novell headers and libraries and not
    the files that were included in the OS for OpenLDAP?

    BTW - Sorry about the name of the thread. Poor proof-reading skills.

    -ac.

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