configuration problem of -base on netbsd

[Riccardo]

Hello,

trying to configure -base after the latest configure changes gives me 
trouble on netbsd:

checking for xml2-config... /usr/pkg/bin/xml2-config
checking for libxml - version >= 2.3.0... no
*** Could not run libxml test program, checking why...

using ./configure --with-ffi-include=/usr/local/include 
--with-ffi-library=/usr/local/lib

I have of course
libxml2-2.6.19      XML parser library from the GNOME project

which resides in standard /usr/pkg/lib

configure:14780: checking for libxml - version >= 2.3.0
configure:14981: gcc -o conftest -g -O2 -I/usr/pkg/include/libxml2  
-I/usr/GNUst
ep/System/Library/Headers -I/usr/pkg/include -I/usr/local/include  
-L/usr/GNUste
p/System/Library/Libraries -Wl,-R/usr/pkg/lib -L/usr/pkg/lib 
-L/usr/local/lib co
nftest.c -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lxml2 -lz -lm -lcallback 
-lavcall  -
lz >&5
configure:14984: $? = 0
configure:14986: ./conftest
Shared object "libcallback.so.0" not found




I am almost sure this was fixed in a configure of some weeks ago and 
these changes were reverted. Why ??! I think it was you, Richard.

the user-supplied ffi-library path (as well as other paths supplied on 
the configure command line) need to be used during the tests as well as 
they need to be embedded using  -Wl,-R

cheers,
  Riccardo