Some upcoming work in gold (by Sriraman Tallam) requires a CRC function.
I could add a CRC function to gold, but I think it makes sense to add it
to libiberty instead.  This CRC function is a copy of the one in gdb,
except that the table of constants is precomputed.  The gdb maintainers
may want to consider switching to this version--I don't think 1K of
read-only data space is all that much these days.

I am running a bootstrap on x86_64-unknown-linux-gnu and plan to commit
this shortly.

Ian


include/ChangeLog:

2009-07-24  Ian Lance Taylor  <iant@google.com>

	* libiberty.h (crc32): Declare.

libiberty/ChangeLog:

2009-07-24  Ian Lance Taylor  <iant@google.com>

	* crc32.c: New file.
	* Makefile.in: Rebuild dependencies.
	(CFILES): Add crc32.c.
	(REQUIRED_OFILES): Add ./crc32.o.
	* functions.texi: Rebuild.