- CFLAGS propagates to debug and profile targets
- Clean up AM_PATH_OGG macro as per bug #65 and conversations with jack
- -I flag to aclocal allows .m4 files in source dir to be searched for autoconf
  macros.  Not currently needed by libogg, but I've included it to be consistent
  with the other libraries (which will need it).

svn path=/trunk/ogg/; revision=2259