am using ubuntu 12.04 and am trying to install pcre however I encountered an error message when I tried to use the command: sudo make after the ./configure command. I have this error message /bin/sed: can't read Files/PCRE/pcre-8.30/libpcre.la: No such file or directory libtool: link: `Files/PCRE/pcre-8.30/libpcre.la' is not a valid libtool archive make[1]: *** [libpcreposix.la] Error 1 make[1]: Leaving directory `/home/dimaz/Downloads/Snort Files/PCRE/pcre-8.30' make: *** [all] Error 2 how can I fix this?