[cups-devel] [UNKN] STR #4735: Cross compile a program using CUPS library

[Ison Thomas]

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Hi, I am trying to write a C program to detect the printers connected to my
Beaglebone Black and print files. I am developing the application in Ubuntu
using Eclipse. I have cross compiled the cups library to generate libcups.a
and included the library in my project. Also the header files in 'cups'
folder are also added to the project and 'cups.h' is included in my source
code. When I try to read the number of printers added to the system using
'cupsGetDests' function, a lot of dependency errors are showing up. 

dest.c:(.text+0xe): undefined reference to `avahi_simple_poll_quit'
dest.c:(.text+0xd8): undefined reference to `avahi_service_name_join'
dest.c:(.text+0xee): undefined reference to `avahi_record_browser_free'
/home/ison/workspace/Project/lib/libcups.a(dest.o): In function
`cups_dnssd_free_device':
dest.c:(.text+0x140): undefined reference to `avahi_record_browser_free'
/home/ison/workspace/Project/lib/libcups.a(dest.o): In function
`cups_dnssd_browse_cb':
dest.c:(.text+0x31c): undefined reference to `avahi_simple_poll_quit'
/home/ison/workspace/Project/lib/libcups.a(dest.o): In function
`cupsEnumDests':
dest.c:(.text+0x22ba): undefined reference to `avahi_simple_poll_new'
dest.c:(.text+0x22cc): undefined reference to `avahi_simple_poll_set_func'
dest.c:(.text+0x22d2): undefined reference to `avahi_simple_poll_get'
dest.c:(.text+0x22e2): undefined reference to `avahi_client_new'
dest.c:(.text+0x2308): undefined reference to `avahi_service_browser_new'
dest.c:(.text+0x2326): undefined reference to `avahi_service_browser_new'
dest.c:(.text+0x2344): undefined reference to `avahi_simple_poll_iterate'
dest.c:(.text+0x238a): undefined reference to `avahi_record_browser_new'
dest.c:(.text+0x23da): undefined reference to `avahi_service_browser_free'
dest.c:(.text+0x23e0): undefined reference to `avahi_service_browser_free'
dest.c:(.text+0x23e6): undefined reference to `avahi_client_free'
dest.c:(.text+0x23ec): undefined reference to `avahi_simple_poll_free'
/home/ison/workspace/Project/lib/libcups.a(http.o): In function
`httpClose':
http.c:(.text+0x113e): undefined reference to `gss_delete_sec_context'
http.c:(.text+0x1150): undefined reference to `gss_release_name'
/home/ison/workspace/Project/lib/libcups.a(http-support.o): In function
`http_client_cb':
http-support.c:(.text+0xbe): undefined reference to
`avahi_simple_poll_quit'
/home/ison/workspace/Project/lib/libcups.a(http-support.o): In function
`http_resolve_cb':
http-support.c:(.text+0x494): undefined reference to
`avahi_string_list_find'
http-support.c:(.text+0x4a4): undefined reference to
`avahi_string_list_get_pair'
http-support.c:(.text+0x558): undefined reference to
`avahi_service_resolver_free'
http-support.c:(.text+0x5b0): undefined reference to
`avahi_string_list_find'
http-support.c:(.text+0x5de): undefined reference to
`avahi_string_list_find'
http-support.c:(.text+0x5ee): undefined reference to
`avahi_string_list_get_pair'
http-support.c:(.text+0x6f8): undefined reference to
`avahi_simple_poll_quit'
/home/ison/workspace/Project/lib/libcups.a(http-support.o): In function
`_httpResolveURI':
http-support.c:(.text+0x1728): undefined reference to
`avahi_simple_poll_new'
http-support.c:(.text+0x173a): undefined reference to
`avahi_simple_poll_set_func'
http-support.c:(.text+0x1740): undefined reference to
`avahi_simple_poll_get'
http-support.c:(.text+0x1750): undefined reference to `avahi_client_new'
http-support.c:(.text+0x178a): undefined reference to
`avahi_service_resolver_new'
http-support.c:(.text+0x17aa): undefined reference to
`avahi_simple_poll_iterate'
http-support.c:(.text+0x17f8): undefined reference to
`avahi_service_resolver_new'
http-support.c:(.text+0x1804): undefined reference to
`avahi_simple_poll_iterate'
http-support.c:(.text+0x1852): undefined reference to `avahi_client_free'
http-support.c:(.text+0x185c): undefined reference to
`avahi_simple_poll_free'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`http_gnutls_write':
tls.c:(.text+0x10): undefined reference to `gnutls_x509_crt_init'
tls.c:(.text+0x26): undefined reference to `gnutls_x509_crt_import'
tls.c:(.text+0x30): undefined reference to `gnutls_x509_crt_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`cupsMakeServerCredentials':
tls.c:(.text+0x240): undefined reference to `gnutls_x509_privkey_init'
tls.c:(.text+0x24e): undefined reference to `gnutls_x509_privkey_generate'
tls.c:(.text+0x260): undefined reference to `gnutls_x509_privkey_export'
tls.c:(.text+0x268): undefined reference to `gnutls_strerror'
tls.c:(.text+0x2c0): undefined reference to `gnutls_x509_crt_init'
tls.c:(.text+0x2f0): undefined reference to `gnutls_x509_privkey_deinit'
tls.c:(.text+0x314): undefined reference to `gnutls_x509_crt_set_dn_by_oid'
tls.c:(.text+0x32c): undefined reference to `gnutls_x509_crt_set_dn_by_oid'
tls.c:(.text+0x346): undefined reference to `gnutls_x509_crt_set_dn_by_oid'
tls.c:(.text+0x356): undefined reference to `gnutls_x509_crt_set_dn_by_oid'
tls.c:(.text+0x366): undefined reference to `gnutls_x509_crt_set_dn_by_oid'
/home/ison/workspace/Project/lib/libcups.a(tls.o):tls.c:(.text+0x376): more
undefined references to `gnutls_x509_crt_set_dn_by_oid' follow
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`cupsMakeServerCredentials':
tls.c:(.text+0x37e): undefined reference to `gnutls_x509_crt_set_key'
tls.c:(.text+0x388): undefined reference to `gnutls_x509_crt_set_serial'
tls.c:(.text+0x390): undefined reference to
`gnutls_x509_crt_set_activation_time'
tls.c:(.text+0x39a): undefined reference to
`gnutls_x509_crt_set_expiration_time'
tls.c:(.text+0x3a2): undefined reference to `gnutls_x509_crt_set_ca_status'
tls.c:(.text+0x3b2): undefined reference to
`gnutls_x509_crt_set_subject_alternative_name'
tls.c:(.text+0x3be): undefined reference to
`gnutls_x509_crt_set_key_purpose_oid'
tls.c:(.text+0x3c6): undefined reference to `gnutls_x509_crt_set_key_usage'
tls.c:(.text+0x3ce): undefined reference to `gnutls_x509_crt_set_version'
tls.c:(.text+0x3e0): undefined reference to `gnutls_x509_crt_get_key_id'
tls.c:(.text+0x3ee): undefined reference to
`gnutls_x509_crt_set_subject_key_id'
tls.c:(.text+0x3f8): undefined reference to `gnutls_x509_crt_sign'
tls.c:(.text+0x40a): undefined reference to `gnutls_x509_crt_export'
tls.c:(.text+0x412): undefined reference to `gnutls_strerror'
tls.c:(.text+0x424): undefined reference to `gnutls_x509_crt_deinit'
tls.c:(.text+0x42a): undefined reference to `gnutls_x509_privkey_deinit'
tls.c:(.text+0x454): undefined reference to `gnutls_x509_crt_deinit'
tls.c:(.text+0x45a): undefined reference to `gnutls_x509_privkey_deinit'
tls.c:(.text+0x47a): undefined reference to `gnutls_x509_crt_deinit'
tls.c:(.text+0x480): undefined reference to `gnutls_x509_privkey_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`httpCopyCredentials':
tls.c:(.text+0x5d4): undefined reference to `gnutls_certificate_get_peers'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`httpCredentialsAreValidForName':
tls.c:(.text+0x61e): undefined reference to
`gnutls_x509_crt_check_hostname'
tls.c:(.text+0x62a): undefined reference to `gnutls_x509_crt_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`httpCredentialsGetExpiration':
tls.c:(.text+0x646): undefined reference to
`gnutls_x509_crt_get_expiration_time'
tls.c:(.text+0x64e): undefined reference to `gnutls_x509_crt_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`httpCredentialsString':
tls.c:(.text+0x6a8): undefined reference to `gnutls_x509_crt_get_dn_by_oid'
tls.c:(.text+0x6ca): undefined reference to
`gnutls_x509_crt_get_expiration_time'
tls.c:(.text+0x760): undefined reference to `gnutls_x509_crt_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`httpCredentialsGetTrust':
tls.c:(.text+0xb7a): undefined reference to
`gnutls_x509_crt_get_activation_time'
tls.c:(.text+0xb86): undefined reference to
`gnutls_x509_crt_get_expiration_time'
tls.c:(.text+0xba2): undefined reference to `gnutls_x509_crt_deinit'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSInitialize':
tls.c:(.text+0xbe0): undefined reference to `gnutls_global_init'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSPending':
tls.c:(.text+0xbea): undefined reference to `gnutls_record_check_pending'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSRead':
tls.c:(.text+0xbf6): undefined reference to `gnutls_record_recv'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSStart':
tls.c:(.text+0xcb2): undefined reference to
`gnutls_certificate_allocate_credentials'
tls.c:(.text+0xcc6): undefined reference to `gnutls_init'
tls.c:(.text+0xcd2): undefined reference to `gnutls_set_default_priority'
tls.c:(.text+0xd42): undefined reference to `gnutls_server_name_set'
tls.c:(.text+0xeb2): undefined reference to
`gnutls_certificate_set_x509_key_file'
tls.c:(.text+0xec2): undefined reference to `gnutls_credentials_set'
tls.c:(.text+0xed6): undefined reference to `gnutls_strerror'
tls.c:(.text+0xee8): undefined reference to `gnutls_deinit'
tls.c:(.text+0xeee): undefined reference to
`gnutls_certificate_free_credentials'
tls.c:(.text+0xf6e): undefined reference to `gnutls_priority_set_direct'
tls.c:(.text+0xf76): undefined reference to `gnutls_transport_set_ptr'
tls.c:(.text+0xf80): undefined reference to
`gnutls_transport_set_pull_function'
tls.c:(.text+0xf8a): undefined reference to
`gnutls_transport_set_push_function'
tls.c:(.text+0xf92): undefined reference to `gnutls_error_is_fatal'
tls.c:(.text+0xfa4): undefined reference to `gnutls_strerror'
tls.c:(.text+0xfb8): undefined reference to `gnutls_deinit'
tls.c:(.text+0xfbe): undefined reference to
`gnutls_certificate_free_credentials'
tls.c:(.text+0xfd4): undefined reference to `gnutls_handshake'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSStop':
tls.c:(.text+0x1082): undefined reference to `gnutls_bye'
tls.c:(.text+0x108e): undefined reference to `gnutls_strerror'
tls.c:(.text+0x10aa): undefined reference to `gnutls_deinit'
tls.c:(.text+0x10b6): undefined reference to
`gnutls_certificate_free_credentials'
/home/ison/workspace/Project/lib/libcups.a(tls.o): In function
`_httpTLSWrite':
tls.c:(.text+0x10cc): undefined reference to `gnutls_record_send'
/home/ison/workspace/Projectt/lib/libcups.a(auth.o):(.text+0xc2): undefined
reference to `gss_import_name'
/home/ison/workspace/Project/lib/libcups.a(auth.o):(.text+0xfc): undefined
reference to `GSS_C_NT_HOSTBASED_SERVICE'
/home/ison/workspace/Project/lib/libcups.a(auth.o): In function
`_cupsSetNegotiateAuthString':
auth.c:(.text+0x136): undefined reference to `gss_delete_sec_context'
auth.c:(.text+0x16a): undefined reference to `gss_init_sec_context'
auth.c:(.text+0x1d6): undefined reference to `gss_release_buffer'
auth.c:(.text+0x1e2): undefined reference to `gss_release_buffer'
collect2: error: ld returned 1 exit status
make: *** [Project]Error 1

How do we use the cups library to generate a c program? In the API
documentation the method for compiling with gcc needs to be performed on
the target board itself, not on a host machine :

gcc -o simple `cups-config --cflags` simple.c `cups-config --libs`

Any help would be appreciated

Link: https://www.cups.org/str.php?L4735
Version: 1.7-current
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