Compile warning noticed in 3.80rc2

[Art Haas]

Hi.

I saw the following warning when building the test release
found on alpha.gnu.org ...

source='../hash.c' object='hash.o' libtool=no \
depfile='.deps/hash.Po' tmpdepfile='.deps/hash.TPo' \
depmode=gcc3 /bin/sh ../config/depcomp \
gcc -DLOCALEDIR=\"/opt/gnu/share/locale\" -DLIBDIR=\"/opt/gnu/lib\"
-DINCLUDEDIR=\"/opt/gnu/include\" -DHAVE_CONFIG_H -I. -I.. -I.
-DNDEBUG  -O2 -march=i586 -c `test -f '../hash.c' || echo
'../'`../hash.c
../hash.c: In function `round_up_2':
../hash.c:362: warning: right shift count >= width of type

The lines in question ...

static unsigned long
round_up_2 (n)
   unsigned long n;
{
   n |= (n >> 1);
   n |= (n >> 2);
   n |= (n >> 4);
   n |= (n >> 8);
   n |= (n >> 16);
   n |= (n >> 32); <== This one

   return n + 1;
}

I'm building on i586-pc-linux-gnu, using gcc-3.2.1 (cvs).

The newly built make passed all the tests.

Also, as the configure template requires autoconf-2.53, why
not rename "configure.in" to "configure.ac"?

Thanks for the work on make.

Art Haas

-- 
They that can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety.
 -- Benjamin Franklin, Historical Review of Pennsylvania, 1759