Build error making jc1: Solaris 2.6 & GNU libiconv

["Joshua R. Poulson" <jrp at pun dot org>]

After the "po" directory we get to building "jc1":

$
cc  -DIN_GCC  -DSVR4  -g -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -
DHAVE_CONFIG_H  -o jc1 \
>         java/parse.o java/class.o java/decl.o java/expr.o java/constants.o java/lang.o java/typeck.o java/except.o java/verify.o
java/zextract.o java/jcf-io.o java/jcf-parse.o java/mangle.o java/mangle_name.o java/jcf-write.o java/buffer.o java/check-init.o
java/jcf-depend.o java/jcf-path.o java/xref.o java/boehm.o mkdeps.o toplev.o libbackend.a -L../zlib -lz obstack.o alloca.o
../libiberty/libiberty.a

This needs a -liconv

--jrp