[Scribus] "unlink undeclared" error building scribus

[Flying Hazard]

I am trying to build version 1.1.6 of scribus.  I get the error shown
below from the make command.  I have seen this mentioned elsewhere in
the mailing list, but have not seen a solution.  Does anybody know how I
get around this?  My system is a reasonably up to date RedHat 9.

if g++ -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/include/libart-2.0
-I/usr/include/freetype2 -I/usr/lib/qt-3.1/include -I/usr/X11R6/include 
-DQT_THREAD_SUPPORT  -D_REENTRANT  -O2 -fno-exceptions -fno-check-new 
-MT page.o -MD -MP -MF ".deps/page.Tpo" \
          -c -o page.o `test -f 'page.cpp' || echo './'`page.cpp; \
        then mv -f ".deps/page.Tpo" ".deps/page.Po"; \
        else rm -f ".deps/page.Tpo"; exit 1; \
        fi
page.cpp: In member function `void Page::LoadPict(QString, int)':
page.cpp:8599: `unlink' undeclared (first use this function)
page.cpp:8599: (Each undeclared identifier is reported only once for
each
   function it appears in.)
make[3]: *** [page.o] Error 1
make[3]: Leaving directory `/usr/local/src/scribus-1.1.6/scribus'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/local/src/scribus-1.1.6/scribus'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/scribus-1.1.6'


Any ideas gratefully received!
John H