I am attempting to compile the 2.0.0 version of maildrop and I keep getting the following errors:

Compiling testmaildirfilter.c Linking testmaildirfilter make[2]: Leaving directory `/usr/src/maildrop-2.0.0/maildir' ./.libs/libmaildir.a(maildirfilter.o): In function `maildir_filter_ruleupdate': maildirfilter.c:(.text+0x167f): undefined reference to `pcre_compile' maildirfilter.c:(.text+0x1698): undefined reference to `pcre_free' collect2: ld returned 1 exit status make[2]: *** [testmaildirfilter] Error 1

I have tried it with both the 6.3 and the 6.4 versions of PCRE, but I get the same results. Also, courier and courier-imap compile and install without those errors (if that matters at all).

Does anyone have any suggestions on what I can check, change or do to get this working? I have been trying every suggestion I have found, no matter how unlikely they are to fix the problem. Thank you.