>On 20 May 2008, at 18:32, Martin Costabel wrote: > >> Just for the record: >> >> Jean-François Mertens wrote: >> [] >>> 1) among others there was the question >>> 'what does "man cp" tell about the -P flag ? ' >>> I was suspicious because of the warnings >>> "cp: Warning: the meaning of `-P' will change in the future to >>> conform to POSIX. >>> Use `--parents' for the old meaning, and `--no-dereference' for >>> the new one." >>> that I saw in the log-file you had posted there. >> >> I don't see such a warning coming from Leopard's cp. >> And indeed the explanation in "man cp" of the -P flag has not changed: >> >> "-P If the -R option is specified, no symbolic links are >> followed. This is the default." >> >> This means in particular that the -P flag is superfluous. >Indeed, both for coreutils' and for Apple's cp then. >(Or could it be that coreutils' cp is different under 10.5 >than under 10.4 ??) >But it is just a precaution motivated by the following extract >from coreutils info file, for cp : >`-R' >`-r' >`--recursive' >> It is not portable to >> use `-r' to copy symbolic links or special files. On some non- >> GNU >> systems, `-r' implies the equivalent of `-L' and `--copy- >> contents' >> for historical reasons. Also, it is not portable to use `-R' to >> copy symbolic links unless you also specify `-P', as POSIX allows >> implementations that dereference symbolic links by default. > > > >> >>> 2) As to Alexander's reply, >> [] >>> another question I asked in your bug tracker item was : >>> "under 10.4, man setpgrp and man setpgid refer to the same >>> manpage, and >>> they are defined as identical. >>> What exactly has changed in 10.5 in this respect ?" >> >> 10.4: >> int >> setpgrp(pid_t pid, pid_t pgrp); >> >> 10.5: >> pid_t >> setpgrp(void); >> >> Both have >> int >> setpgid(pid_t pid, pid_t pgid); >> >> -- >> Martin >> >> >> >Thanks a lot Martin >_ that's very helpful ! > >Jean-Francois > > +1 to the information provided.
I did not look up the cp information but I did find information on the use of setpgrp and setpgid and made the switch to setpgid. I still have the question on how to apply changes only when building for Leopard vice building for Tiger. James McKenzie ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Fink-users mailing list Fink-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/fink-users
