1 $DragonFly: src/bin/cpdup/PORTING,v 1.2 2008/04/11 17:33:11 dillon Exp $
5 The manual page for cpdup is "cpdup.1". This file describes how to
6 to port the program to other OS's.
10 cpdup was developed on BSD. Most BSDs should just be able to compile
11 cpdup using the Makefile.
15 This script should suffice when compiling under linux. For some reason
16 that I cannot fathom, linux defaults to using a 32 bit off_t. It makes
17 no sense at all to me why they would want to do this, BSDs went to
18 a 64 bit default off_t over 15 years ago. In anycase, fixing it
19 requires a few -D options.
26 cc -D__unused= -D_GNU_SOURCE -D__USE_FILE_OFFSET64 -DNOMD5 *.c -c
27 cc -D__unused= -D_GNU_SOURCE -D__USE_FILE_OFFSET64 -DNOMD5 *.o -o ~/bin/cpdup
29 BACKUP SCRIPT MODIFICATIONS - you will almost certainly have to adjust
30 the do_cleanup script to extract the proper field(s) from the df output.
31 You will probably have to use 'df' instead of 'df -i', and you may have
32 to adjust the script to not check the inode fields.