Quick question about +REQUIRED_BY files

[asdsdf]

Hi there, I tried a quick search in this forum for "REQUIRED_BY" but it only brought up one match which didn't answer my question.

In /var/db/pkg/$portname/+REQUIRED_BY there's obviously a list of ports which depend on $portname. My question is; does this file include every port in the whole dependency "chain", or does it only include ports which DIRECTLY depend on $portname?

Really quick question and I hope there's a really quick answer...

Thanks for your help!

[DutchDaemon]

Only direct dependencies. Those have dependencies that are listed in their own REQUIRED_BY files. In other words, it's a one-level-deep approach which can also be seen on a line-by-line basis in /usr/ports/INDEX-7 and at http://www.freebsd.org/ports.

[asdsdf]

Thanks for your answer, that's what I thought it should be. However, on my 7.1 system, I have the following:

[xxx@xxx /var/db/pkg/ca_root_nss-3.11.9_2]$ cat +REQUIRED_BY
curl-7.19.4
rtorrent-0.8.2_1

Which would seem to suggest that rtorrent has a direct dependency on ca_root_nss? But:

[xxx@xxx /usr/ports/net-p2p/rtorrent]$ grep DEP Makefile
BUILD_DEPENDS?= libtorrent=0.12.2:${PORTSDIR}/net-p2p/libtorrent
RUN_DEPENDS?= libtorrent=0.12.2:${PORTSDIR}/net-p2p/libtorrent
LIB_DEPENDS?= curl.5:${PORTSDIR}/ftp/curl
LIB_DEPENDS+= xmlrpc.14:${PORTSDIR}/net/xmlrpc-c-devel

that doesn't seem to be the case? Instead it seems that rtorrent depends on curl, and curl depends on ca_root_nss, but ca_root_nss' +REQUIRED_BY contains everything in the chain right up to the original package which caused it to be installed?

[asdsdf]

Ah, OK, I see if I "grep rtorrent /usr/ports/INDEX-7" then rtorrent seems to depends on plenty of other things which aren't listed in its Makefile (ca_root_nss for one, perl, pkg-config, etc). I obviously have a little bit more to learn about the ports system before I ask any more questions!

Thanks for your help, I'll head off and have another look at the handbook :)

[DutchDaemon]

Also see the following make targets in any port dir:

make pretty-print-build-depends-list
make pretty-print-run-depends-list

and

make missing

(for a list of dependencies that have yet to be compiled to make that port work -- nothing will be built by this command)

[asdsdf]

Thanks, I've been using portmaster for most of the ports bits, and I've found the "portmaster --show-work" command which seems to be useful for showing which deps I'm currently missing.

Another question about the "make pretty-print-run-depends-list", I've just run it against rtorrent and it says it requires perl to run. However, I removed perl from my machine this morning after I ran "portmaster -l" and it was listed as a root port (ie nothing depends on it). I can still run rtorrent fine even on my system which no longer has perl installed, so is it still a runtime dependency?

[DutchDaemon]

Perl is a trunk port. There's an inordinate amount of ports depending on it ..

[asdsdf]

[xxx@yyy /var/db/pkg/perl-5.8.9_2]$ cat +REQUIRED_BY
autoconf-2.13.000227_6
p5-gettext-1.05_2
help2man-1.36.4_2
autoconf-2.62
automake-1.4.6_5This is from another 7.1 machine, where portmaster lists perl as a trunk port like you said. However the original machine listed it as a root port, and therefore I removed it.

Is there an easy way of reinstalling any missing deps?

[DutchDaemon]

portmaster --check-depends should help.

[asdsdf]

Thanks, I'm just portmastering perl, gmake and m4 manually (deps of rtorrent) then I'll try that command to show me missing deps from elsewhere in the tree.

[jb_fvwm2]

you might find it useful to alias "make run-depends-list" and
the other one, if you use it every day.