JDK 1.5 does not build on AMD-64

[Free BSD]

Dear List Members and Maintainers

I had been trying trying for nearly 15 days to build JDK1.5 in an AMD 
box with no luck at all. I tried to google around to see if others had 
the same problem, or if I can understand what is causing this problem -- 
and have failed. Every time the compiler would stop at the point
    
/usr/ports/java/jdk15/work/control/build/bsd-amd64/tmp/sun/sun.awt/motif21/obj64/awt_motif21.o    
/usr/ports/java/jdk15/work/control/build/bsd-amd64/tmp/sun/sun.awt/motif21/obj64/awt_Choice21.o    
/usr/ports/java/jdk15/work/control/build/bsd-amd64/tmp/sun/sun.awt/motif21/obj64/Xinerama.o   
| tsort -q` /usr/X11R6/lib/libXm.a -lXp   -lXtst -lXext -lXt   -lX11 
-lmlib_image 
-L/usr/ports/java/jdk15/work/control/build/bsd-amd64/lib/amd64/server 
-ljvm  -lawt -lm  -ljava 
-L/usr/ports/java/jdk15/work/control/build/bsd-amd64/lib/amd64/server 
-ljvm -pthread
/usr/bin/ld: /usr/X11R6/lib/libXm.a(CascadeB.o): relocation R_X86_64_32 
can not be used when making a shared object; recompile with -fPIC
/usr/X11R6/lib/libXm.a: could not read symbols: Bad value
gmake[4]: *** 
[/usr/ports/java/jdk15/work/control/build/bsd-amd64/lib/amd64/motif21/libmawt.so] 
Error 1
gmake[4]: Leaving directory 
`/usr/ports/java/jdk15/work/j2se/make/sun/motif21'
gmake[3]: *** [optimized] Error 2
gmake[3]: Leaving directory 
`/usr/ports/java/jdk15/work/j2se/make/sun/motif21'
gmake[2]: *** [all] Error 1
gmake[2]: Leaving directory `/usr/ports/java/jdk15/work/j2se/make/sun'
gmake[1]: *** [all] Error 1
gmake[1]: Leaving directory `/usr/ports/java/jdk15/work/j2se/make'
gmake: *** [j2se-build] Error 2
*** Error code 2

Stop in /usr/ports/java/jdk15.


I have all the dependent packages installed (confirmed via pkg_info), 
and I believe the system is quite updated (I have build world and also 
build a new kernel, with all the pre-requisites, of course). My 
/etc/make.conf goes like below

# added by use.perl 2007-02-08 02:16:42
PERL_VER=5.8.8
PERL_VERSION=5.8.8
# CPUTYPE=athlon64
LOADER_TFTP_SUPPORT= NO
DOC_LANG=    en_UK.ISO8859-1
#    SENDMAIL_CFLAGS=-I/usr/local/include -DSASL=2
#    SENDMAIL_LDFLAGS=-L/usr/local/lib
#    SENDMAIL_LDADD=-lsasl2
#

I'm truly at a loss. I have so far tried at least six times, and each 
time I did
a. portsclean -CC
b. cvsup the ports tree
c. do a portsdb -uU
before starting a new.

Would appreciate if someone can please help.

Thanks