build problem on sun sparc solaris 2.7

[Mike Stump]

This is the latest, in a long string of build problems on sun sparc
solaris 2.7:

make all-target-zlib
[...]
make[1]: Entering directory `/kankakee1/tmp/mrs/net/gcc-sol/sparc-sun-solaris2.7/zlib'
uncompr.lo zutil.lo  
libzgcj.so.0 -o .libs/libzgcj.so.0.0.0
ld: warning: option -o appears more than once, first setting taken
ld: fatal: file libzgcj.so.0: cannot open file: No such file or directory
ld: fatal: File processing errors. No output written to .libs/libzgcj.so.0.0.0
collect2: ld returned 1 exit status
make[1]: *** [libzgcj.la] Error 1

:-(