Lftp compilation on HP-UX (3.0.3 and 3.0.4rc2)

Hi 
I'm trying to compile lftp 3.0.X for HP-UX and am getting the following
compilation error:
 
      if /bin/sh ../libtool --silent --mode=compile gcc -DHAVE_CONFIG_H  -I.
-I. -I../include
 -I../include   -I/usr/local/include   -O2 -Wall -Wwrite-strings
-Woverloaded-virtual -fno-exce
ptions -fno-rtti -fno-implement-inlines -Winline -MT FileSet.lo -MD -MP -MF
".deps/FileSet.Tpo"
 -c -o FileSet.lo FileSet.cc; \
        then mv -f ".deps/FileSet.Tpo" ".deps/FileSet.Plo"; else rm -f
".deps/FileSet.Tpo"; exi
t 1; fi
FileSet.cc: In static member function `static FileInfo*
   FileInfo::parse_ls_line(const char*, const char*)':
FileSet.cc:734: error: `strtok_r' undeclared (first use this function)
FileSet.cc:734: error: (Each undeclared identifier is reported only once for
   each function it appears in.)
*** Error exit code 1
 
Stop.
*** Error exit code 1
 
Stop.
 
I'd be very grateful if you could suggest anything.
I attach the full config.log for your information.
 
Thanks,
Bill
 
Bill McNAMARA
hp software services EMEA
e-mail:     <mailto:[email protected]> [email protected] 
phone:   +33 476613706