[cairo] Bug: libpixman/src/icbltone.c compile error on ia64 with icc80

[John Ellson]

source='icbltone.c' object='icbltone.lo' libtool=yes \
DEPDIR=.deps depmode=gcc /bin/sh ../depcomp \
/bin/sh ../libtool --mode=compile --tag=CC /opt/intel_cc_80/bin/icc 
-DHAVE_CONFIG_H -I. -I. -I.. -I.    -g -O2 -c -o icbltone.lo icbltone.c
 /opt/intel_cc_80/bin/icc -DHAVE_CONFIG_H -I. -I. -I.. -I. -g -O2 -c 
icbltone.c -Wp,-MD,.deps/icbltone.TPlo  -fPIC -DPIC -o .libs/icbltone.o
icbltone.c(461): error: shift count is too large
        C4_24( 0, 0), C4_24( 1, 0), C4_24( 2, 0), C4_24( 3, 0),
        ^

icbltone.c(461): error: shift count is too large
        C4_24( 0, 0), C4_24( 1, 0), C4_24( 2, 0), C4_24( 3, 0),
                      ^

icbltone.c(461): error: shift count is too large
        C4_24( 0, 0), C4_24( 1, 0), C4_24( 2, 0), C4_24( 3, 0),
                                    ^

.....  more of the same


This same code generates warnings when gcc is used.

Sorry but I don't understand what the code is doing, so I'm unable to 
offer a patch.

John Ellson