problem installing doxygen on 10.5.6

[Victor Eijkhout]

There is an existing ticket that claims to have solved this problem 2  
months ago <https://trac.macports.org/ticket/18258> but I'm still  
seeing this:

Error: Target org.macports.build returned: shell command " cd "/opt/ 
local/var/macports/build/ 
_opt_local_var_macports_sources_rsync 
.macports.org_release_ports_textproc_doxygen/work/doxygen-1.5.8" &&  
make all " returned error 2
Command output: /usr/bin/make -C qtools
/usr/bin/make -f Makefile.qtools    all
make[2]: Nothing to be done for `all'.
/usr/bin/make -C libpng
/usr/bin/make -f Makefile.libpng
make[2]: Nothing to be done for `all'.
/usr/bin/make -C libmd5
/usr/bin/make -f Makefile.libmd5
make[2]: Nothing to be done for `all'.
/usr/bin/make -C src
/usr/bin/make -f Makefile.libdoxycfg PERL=/opt/local/bin/perl all
/usr/bin/g++-4.0 -I/opt/local/include -c -pipe -D__FreeBSD__=6 -Wall - 
W -O2 -I../qtools -o ../objects/portable.o portable.cpp
portable.cpp: In function 'size_t portable_iconv(void*, const char**,  
size_t*, char**, size_t*)':
portable.cpp:392: error: invalid conversion from 'char**' to 'const  
char**'
portable.cpp:392: error:   initializing argument 2 of 'size_t  
libiconv(void*, const char**, size_t*, char**, size_t*)'
make[2]: *** [../objects/portable.o] Error 1
make[1]: *** [all] Error 2
make: *** [all] Error 2

-- 
Victor Eijkhout, 512 471 5809 (w), 512 499 0504 (h)
Texas Advanced Computing Center, The University of Texas at Austin