+printf "Checking for iconv 2nd argument... "
+printf "#include <iconv.h>\nint main(){ const char** src = 0; iconv(0, src, 0, 0, 0); }\n" > build_check.c
+$CC $CFLAGS $LDFLAGS -Werror build_check.c $LIBICONV -o fake > /dev/null 2> /dev/null
+if [ $? != 0 ]
+then
+ printf "non-const\n"
+else
+ DEFS="$DEFS -DCONST_ICONV"
+ printf "const\n"
+fi
+rm -f fake
+