print/cups-base won't build due to dwarf error in /usr/bin/ld

[Thomas Mueller]

I am trying to build cups-related ports needed for print/hplip, but the latest error is 

/usr/bin/ld: Dwarf Error: found dwarf version '4', this reader only handles vers

ion 2 information.

uname -a shows


FreeBSD amelia4 11.0-CURRENT FreeBSD 11.0-CURRENT #5 r265264: Sat May  3 16:20:39 UTC 2014     root at amelia4:/usr/obj/usr/src/sys/SANDY11NC  amd64

This is followed by undefined references avahi-related:

../cups/libcups.a(http-support.o): In function `_httpResolveURI':               

http-support.c:(.text+0x1e80): undefined reference to `avahi_simple_poll_new'   

http-support.c:(.text+0x1eaa): undefined reference to `avahi_simple_poll_set_fun

c'                                                                              

http-support.c:(.text+0x1eb2): undefined reference to `avahi_simple_poll_get'   

http-support.c:(.text+0x1ed4): undefined reference to `avahi_client_new'        

http-support.c:(.text+0x1f23): undefined reference to `avahi_service_resolver_ne

w'                                                                              

http-support.c:(.text+0x1f4a): undefined reference to `avahi_simple_poll_iterate

'                                                                               

http-support.c:(.text+0x1fbb): undefined reference to `avahi_service_resolver_ne

w'                                                                              

http-support.c:(.text+0x2023): undefined reference to `avahi_simple_poll_iterate

'                                                                               

http-support.c:(.text+0x2054): undefined reference to `avahi_client_free'       

http-support.c:(.text+0x2060): undefined reference to `avahi_simple_poll_free'  

../cups/libcups.a(http-support.o): In function `http_client_cb':                

http-support.c:(.text+0x214e): undefined reference to `avahi_simple_poll_quit'  

../cups/libcups.a(http-support.o): In function `http_resolve_cb':               

http-support.c:(.text+0x228f): undefined reference to `avahi_service_resolver_fr

ee' 
http-support.c:(.text+0x2313): undefined reference to `avahi_string_list_find'  

http-support.c:(.text+0x2332): undefined reference to `avahi_string_list_find'  

http-support.c:(.text+0x234f): undefined reference to `avahi_string_list_get_pai

r'                                                                              

http-support.c:(.text+0x2505): undefined reference to `avahi_simple_poll_quit'  

cc: error: linker command failed with exit code 1 (use -v to see invocation)    

gmake[3]: *** [ippserver] Error 1                                               

gmake[3]: Leaving directory `/usr/ports/print/cups-base/work11/cups-1.7.2/test' 

gmake[2]: *** [all] Error 1                                                     

gmake[2]: Leaving directory `/usr/ports/print/cups-base/work11/cups-1.7.2'      

*** Error code 1                                                                

                                                                                

Stop.

I type this in a text-mode newcons, sorry for inelegant formatting, it seems there is a lot of unwanted double-spacing such as I never get in xterm or syscons.

But what is this dwarf error.  Do I need to source-update FreeBSD-current installation, would that give me a more workable /usr/bin/ld?
                
Tom