bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales

[Paul Eggert]

Thanks for reporting that, I forgot that the code defaulted SEEK_HOLE 
but not SEEK_DATA.  The first attached patch should fix it.  The second 
one should improve performance further on Solaris for files that end in 
holes.

0001-grep-port-to-platforms-lacking-SEEK_DATA.patch
Description: Text Data

0002-grep-speed-up-processing-of-holes-before-EOF-on-Sola.patch
Description: Text Data