bugs when installing expat 1.95.2 on Sun 5.6

[Tran, Anh-thu]

When I ran make command, nothing happened.  It just returned the prompt, and
looked like it didn't build anything.  I just tried to run make install and
got errors:
cc -o xmlwf -static xmlwf.o xmlfile.o codepage.o unixfilemap.o
-L../lib/.libs -lexpat
cc: -a conflicts with -dy.
*** Error code 1
make: Fatal error: Command failed for target `xmlwf'
Current working directory /tmp/expat-1.95.2/xmlwf
*** Error code 1
make: Fatal error: Command failed for target `install'

Please help.  Thank you.