missing or wrong mingw_lib ?

[marco atzeri]

building from last cvs

make[3]: *** No rule to make target `/libkernel32.a', needed by 
`cygwin0.dll'.  Stop.
make[3]: Leaving directory 
`/pub/cygwin/cvs/build/i686-pc-cygwin/winsup/cygwin'

$ grep libkernel32.a 
/pub/cygwin/cvs/build/i686-pc-cygwin/winsup/cygwin/Makefile
DLL_IMPORTS:=$(mingw_lib)/libkernel32.a $(mingw_lib)/libntdll.a


but on source tree "$(mingw_lib)" is not reported on other files

$ grep -rH mingw_lib *
winsup/cygwin/Makefile.in:DLL_IMPORTS:=$(mingw_lib)/libkernel32.a 
$(mingw_lib)/libntdll.a
winsup/mingw/Makefile.in:       echo "static int __mingw_libm_dummy;" > 
_libm_dummy.c