error building gtk 2.24.7 under mingw/msys

[Andrea Zagli <azagli libero it>]

i would like to build gtk under mingw/msys because i want to debug  
gtkprintoperation, but i get the following error


make[3]: Leaving directory `/home/a.zagli/gtk+-2.24.7/gtk'
/gtk-update-icon-cache --force --ignore-theme-index            \
           --source builtin_icons stock-icons > gtkbuiltincache.h.tmp  
&&        \
        mv gtkbuiltincache.h.tmp gtkbuiltincache.h
make[2]: *** [gtkbuiltincache.h] Error 127
make[2]: Leaving directory `/home/a.zagli/gtk+-2.24.7/gtk'


what could be the problem?

gtkbuiltincache.h.tmp is empty

thanks in advance