--- imapfilter-2.6.12/src/Makefile	2018-10-03 09:37:24.000000000 +0200
+++ imapfilter-2.6.12.new/src/Makefile	2020-07-30 14:22:13.686128701 +0200
@@ -1,8 +1,8 @@
 DESTDIR ?=
-PREFIX ?= /usr/local
+PREFIX ?= /usr
 BINDIR = $(PREFIX)/bin
 SHAREDIR = $(PREFIX)/share/imapfilter
-MANDIR = $(PREFIX)/man
+MANDIR = $(PREFIX)/share/man
 
 MYCFLAGS =
 MYLDFLAGS =